Say what the code does, not what it replaced

The timings and the runs that never finished belong in the commit
messages, where they can be read against the change; a reader of the
code cannot check them. Kept the cost that still explains the design.

MultiPoint also spells out the consequence: a moved-from Polygon or
Polyline is now really empty where it used to silently keep its points.

The two wall spacing comments the parallel loop reindented are plain
ASCII now, so the whole file is.

.claude/skills/orca-profiles/references/extruder-variants.md

@@ -189,7 +189,8 @@ the presets to a base is in [shared-bases.md](shared-bases.md#variant-arrays-on-
 2. Every key in `filament_options_with_variant` ([the full list](#the-four-key-sets)) that reaches the
    preset, whether written, included or inherited, is resized to its variant count: write it at exactly
    that width, or leave it out. Keys outside the set
-   (`filament_type`, plate temperatures, `fan_max_speed`, `slow_down_min_speed`, …) are never addressed by variant index; the preset contributes their first value however wide a
+   (`filament_type`, plate temperatures, `fan_max_speed`, `slow_down_min_speed`, `pressure_advance`,
+   …) are never addressed by variant index; the preset contributes their first value however wide a
    file writes them.
 3. Cover every variant the material is meant to print on across its `compatible_printers`. Leave out
    a variant deliberately when the material should not be tuned for it (e.g. a TPU High Flow variant
@@ -454,7 +455,7 @@ no set: the variant-length resize leaves it alone, and only the pair rebuild of
 last for contrast; it is not a variant set.
 
 `check` and `fix-variant` read the four sets from `PrintConfig.cpp` on every run, so they follow the
-engine. The lists below are from the 2026-09-29 checkout; regenerate them from the repository root
+engine. The lists below are from the 2026-09-25 checkout; regenerate them from the repository root
 before relying on them (the recipe strips comments, since an initializer can carry a commented-out entry):
 
 ```bash
@@ -477,7 +478,7 @@ EOF
 
 **`print_options_with_variant`**, process, stride 1 (45): `bridge_acceleration`, `bridge_speed`, `default_acceleration`, `default_jerk`, `default_junction_deviation`, `enable_overhang_speed`, `gap_infill_speed`, `infill_jerk`, `initial_layer_acceleration`, `initial_layer_infill_speed`, `initial_layer_jerk`, `initial_layer_speed`, `initial_layer_travel_acceleration`, `initial_layer_travel_jerk`, `initial_layer_travel_speed`, `inner_wall_acceleration`, `inner_wall_jerk`, `inner_wall_speed`, `internal_bridge_speed`, `internal_solid_infill_acceleration`, `internal_solid_infill_speed`, `outer_wall_acceleration`, `outer_wall_jerk`, `outer_wall_speed`, `overhang_1_4_speed`, `overhang_2_4_speed`, `overhang_3_4_speed`, `overhang_4_4_speed`, `print_extruder_id`, `print_extruder_variant`, `slowdown_for_curled_perimeters`, `small_perimeter_speed`, `small_perimeter_threshold`, `sparse_infill_acceleration`, `sparse_infill_speed`, `support_interface_speed`, `support_speed`, `top_solid_infill_flow_ratio`, `top_surface_acceleration`, `top_surface_jerk`, `top_surface_speed`, `travel_acceleration`, `travel_jerk`, `travel_speed`, `travel_speed_z`
 
-**`filament_options_with_variant`**, filament, stride 1 (54): `activate_air_filtration`, `activate_air_filtration_during_print`, `activate_air_filtration_on_completion`, `adaptive_pressure_advance`, `adaptive_pressure_advance_bridges`, `adaptive_pressure_advance_model`, `adaptive_pressure_advance_overhangs`, `complete_print_exhaust_fan_speed`, `during_print_exhaust_fan_speed`, `enable_pressure_advance`, `filament_adaptive_volumetric_speed`, `filament_cooling_before_tower`, `filament_deretraction_speed`, `filament_extruder_variant`, `filament_flow_ratio`, `filament_flush_temp`, `filament_flush_volumetric_speed`, `filament_ironing_flow`, `filament_ironing_inset`, `filament_ironing_spacing`, `filament_ironing_speed`, `filament_long_retractions_when_cut`, `filament_max_volumetric_speed`, `filament_pre_cooling_temperature`, `filament_pre_cooling_temperature_nc`, `filament_preheat_temperature_delta`, `filament_ramming_travel_time`, `filament_ramming_travel_time_nc`, `filament_ramming_volumetric_speed`, `filament_ramming_volumetric_speed_nc`, `filament_retract_after_wipe`, `filament_retract_before_wipe`, `filament_retract_length_nc`, `filament_retract_length_toolchange`, `filament_retract_lift_above`, `filament_retract_lift_below`, `filament_retract_lift_enforce`, `filament_retract_restart_extra`, `filament_retract_restart_extra_toolchange`, `filament_retract_when_changing_layer`, `filament_retraction_distances_when_cut`, `filament_retraction_length`, `filament_retraction_minimum_travel`, `filament_retraction_speed`, `filament_wipe`, `filament_wipe_distance`, `filament_z_hop`, `filament_z_hop_types`, `long_retractions_when_ec`, `nozzle_temperature`, `nozzle_temperature_initial_layer`, `pressure_advance`, `retraction_distances_when_ec`, `volumetric_speed_coefficients`
+**`filament_options_with_variant`**, filament, stride 1 (48): `activate_air_filtration`, `activate_air_filtration_during_print`, `activate_air_filtration_on_completion`, `complete_print_exhaust_fan_speed`, `during_print_exhaust_fan_speed`, `filament_adaptive_volumetric_speed`, `filament_cooling_before_tower`, `filament_deretraction_speed`, `filament_extruder_variant`, `filament_flow_ratio`, `filament_flush_temp`, `filament_flush_volumetric_speed`, `filament_ironing_flow`, `filament_ironing_inset`, `filament_ironing_spacing`, `filament_ironing_speed`, `filament_long_retractions_when_cut`, `filament_max_volumetric_speed`, `filament_pre_cooling_temperature`, `filament_pre_cooling_temperature_nc`, `filament_preheat_temperature_delta`, `filament_ramming_travel_time`, `filament_ramming_travel_time_nc`, `filament_ramming_volumetric_speed`, `filament_ramming_volumetric_speed_nc`, `filament_retract_after_wipe`, `filament_retract_before_wipe`, `filament_retract_length_nc`, `filament_retract_length_toolchange`, `filament_retract_lift_above`, `filament_retract_lift_below`, `filament_retract_lift_enforce`, `filament_retract_restart_extra`, `filament_retract_restart_extra_toolchange`, `filament_retract_when_changing_layer`, `filament_retraction_distances_when_cut`, `filament_retraction_length`, `filament_retraction_minimum_travel`, `filament_retraction_speed`, `filament_wipe`, `filament_wipe_distance`, `filament_z_hop`, `filament_z_hop_types`, `long_retractions_when_ec`, `nozzle_temperature`, `nozzle_temperature_initial_layer`, `retraction_distances_when_ec`, `volumetric_speed_coefficients`
 
 **`printer_extruder_options`**, machine, one value per extruder, not a variant set (8):
 `default_nozzle_volume_type`, `extruder_max_nozzle_count`, `extruder_printable_area`,

.claude/skills/orca-profiles/references/filament-profiles.md

@@ -244,10 +244,10 @@ preset for a 0.2 nozzle, explicitly revisit flow limits; do not infer a pressure
 required direction of change, from diameter alone.
 
 On a printer with extruder variants, a filament tunes these per variant too:
-`filament_max_volumetric_speed`, `filament_flow_ratio`, `nozzle_temperature`, pressure advance and the
-retraction overrides carry one value per variant of `filament_extruder_variant` (Standard, High Flow, …). The
+`filament_max_volumetric_speed`, `filament_flow_ratio`, `nozzle_temperature` and the retraction
+overrides carry one value per variant of `filament_extruder_variant` (Standard, High Flow, …). The
 exact key set is [`filament_options_with_variant`](extruder-variants.md#the-four-key-sets);
-`slow_down_min_speed` and `fan_max_speed` are not in it. Keep every such array at exactly that width, even where the
+`slow_down_min_speed` and `pressure_advance` are not in it. Keep every such array at exactly that width, even where the
 setting does not differ per variant, and measure the High Flow variant rather than copying Standard
 ([extruder-variants.md](extruder-variants.md#filament)).
 

.github/workflows/ofl-ota-cronjob.yml

@@ -146,7 +146,7 @@ jobs:
                 "repos/${{ github.repository }}/actions/workflows/post_merge_profiles.yml/runs" \
                 -f branch="$branch" -f event=workflow_dispatch -f per_page=100)"
               run_id="$(jq -r --arg marker "[OFL cron $dispatch_id]" \
-                '[.workflow_runs[] | select((.display_title // "") | contains($marker))]
+                '[.workflow_runs[] | select((.display_title // "") | contains($marker))] \
                 | sort_by(.created_at) | last | .id // empty' <<< "$runs_json")"
               [ -n "$run_id" ] && break
               sleep 5

CMakeLists.txt

@@ -834,37 +834,6 @@ find_package(OpenSSL REQUIRED)
 find_package(CURL REQUIRED)
 find_package(Freetype REQUIRED)
 
-if (SLIC3R_GUI)
-    # LibDataChannel's installed export references its bundled dependencies,
-    # but does not install their CMake targets. Recreate those targets from
-    # the same dependency prefix before loading the LibDataChannel config.
-    if (NOT TARGET Usrsctp::usrsctp)
-        find_library(_ORCA_USRSCTP_LIBRARY NAMES usrsctp
-            PATHS "${CMAKE_PREFIX_PATH}/lib" NO_DEFAULT_PATH)
-        if (_ORCA_USRSCTP_LIBRARY)
-            add_library(Usrsctp::usrsctp UNKNOWN IMPORTED GLOBAL)
-            set_target_properties(Usrsctp::usrsctp PROPERTIES
-                IMPORTED_LOCATION "${_ORCA_USRSCTP_LIBRARY}"
-                IMPORTED_LINK_INTERFACE_LANGUAGES C
-                INTERFACE_LINK_LIBRARIES "Threads::Threads")
-        endif()
-    endif()
-
-    if (NOT TARGET LibJuice::LibJuice)
-        find_library(_ORCA_LIBJUICE_LIBRARY NAMES juice
-            PATHS "${CMAKE_PREFIX_PATH}/lib" NO_DEFAULT_PATH)
-        if (_ORCA_LIBJUICE_LIBRARY)
-            add_library(LibJuice::LibJuice UNKNOWN IMPORTED GLOBAL)
-            set_target_properties(LibJuice::LibJuice PROPERTIES
-                IMPORTED_LOCATION "${_ORCA_LIBJUICE_LIBRARY}"
-                IMPORTED_LINK_INTERFACE_LANGUAGES C
-                INTERFACE_LINK_LIBRARIES "Threads::Threads")
-        endif()
-    endif()
-
-    find_package(LibDataChannel CONFIG REQUIRED)
-endif()
-
 
 add_library(libcurl INTERFACE)
 target_link_libraries(libcurl INTERFACE CURL::libcurl)
@@ -1145,7 +1114,6 @@ function(orcaslicer_copy_dlls target config postfix output_dlls)
     endif ()
     file(COPY ${_occt_dlls}
             ${CMAKE_PREFIX_PATH}/bin/freetype.dll
-            ${CMAKE_PREFIX_PATH}/bin/avformat-61.dll
             ${CMAKE_PREFIX_PATH}/bin/avcodec-61.dll
             ${CMAKE_PREFIX_PATH}/bin/swresample-5.dll
             ${CMAKE_PREFIX_PATH}/bin/swscale-8.dll
@@ -1158,7 +1126,6 @@ function(orcaslicer_copy_dlls target config postfix output_dlls)
         ${_out_dir}/WebView2Loader.dll
 
         ${_out_dir}/freetype.dll
-        ${_out_dir}/avformat-61.dll
         ${_out_dir}/avcodec-61.dll
         ${_out_dir}/swresample-5.dll
         ${_out_dir}/swscale-8.dll
@@ -1182,10 +1149,7 @@ function(orcaslicer_copy_sos target config postfix output_sos)
         set(_out_dir "${CMAKE_CURRENT_BINARY_DIR}")
     endif ()
 
-    file(COPY ${CMAKE_PREFIX_PATH}/lib/libavformat.so
-            ${CMAKE_PREFIX_PATH}/lib/libavformat.so.61
-            ${CMAKE_PREFIX_PATH}/lib/libavformat.so.61.1.100
-            ${CMAKE_PREFIX_PATH}/lib/libavcodec.so
+    file(COPY ${CMAKE_PREFIX_PATH}/lib/libavcodec.so
             ${CMAKE_PREFIX_PATH}/lib/libavcodec.so.61
             ${CMAKE_PREFIX_PATH}/lib/libavcodec.so.61.3.100
             ${CMAKE_PREFIX_PATH}/lib/libavutil.so
@@ -1200,9 +1164,6 @@ function(orcaslicer_copy_sos target config postfix output_sos)
          DESTINATION ${_out_dir})
 
     set(${output_sos}
-        ${_out_dir}/libavformat.so
-        ${_out_dir}/libavformat.so.61
-        ${_out_dir}/libavformat.so.61.1.100
         ${_out_dir}/libavcodec.so
         ${_out_dir}/libavcodec.so.61
         ${_out_dir}/libavcodec.so.61.3.100
@@ -1332,8 +1293,6 @@ endif ()
 
 if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
     set(LIBRARY_FILES
-    ${LIBDIR_BIN}/libavformat.so.61
-    ${LIBDIR_BIN}/libavformat.so.61.1.100
     ${LIBDIR_BIN}/libavcodec.so.61
     ${LIBDIR_BIN}/libavcodec.so.61.3.100
     ${LIBDIR_BIN}/libavutil.so.59

deps/CMakeLists.txt

@@ -164,7 +164,7 @@ if (NOT _is_multi AND NOT CMAKE_BUILD_TYPE)
 endif ()
 
 function(orcaslicer_add_cmake_project projectname)
-    cmake_parse_arguments(P_ARGS "FORWARD_CONFIG" "INSTALL_DIR;BUILD_COMMAND;INSTALL_COMMAND;SOURCE_DIR" "CMAKE_ARGS" ${ARGN})
+    cmake_parse_arguments(P_ARGS "FORWARD_CONFIG" "INSTALL_DIR;BUILD_COMMAND;INSTALL_COMMAND" "CMAKE_ARGS" ${ARGN})
 
     # MSVC is true for clang-cl as well, so the sub-build toolchain has to key on the
     # generator. A non-Visual-Studio superbuild passes its own generator down, and with
@@ -210,18 +210,12 @@ function(orcaslicer_add_cmake_project projectname)
       set(_build_j "-j${NPROC}")
     endif ()
 
-    set(_source_dir_arg "")
-    if (P_ARGS_SOURCE_DIR)
-        set(_source_dir_arg SOURCE_DIR ${P_ARGS_SOURCE_DIR})
-    endif ()
-
 if (NOT IS_CROSS_COMPILE OR NOT APPLE)
     ExternalProject_Add(
         dep_${projectname}
         EXCLUDE_FROM_ALL    ON
         INSTALL_DIR         ${DESTDIR}
         DOWNLOAD_DIR        ${DEP_DOWNLOAD_DIR}/${projectname}
-        ${_source_dir_arg}
         ${_gen}
         CMAKE_ARGS
             -DCMAKE_POLICY_VERSION_MINIMUM=3.5
@@ -255,14 +249,12 @@ if (NOT IS_CROSS_COMPILE OR NOT APPLE)
         # note for future devs: shared libs may actually create a size reduction
         # but orcaslicer_deps tends to get really funny regarding linking after that (notably boost)
         # so, as much as I would like to use that, it's not happening
-        if (NOT P_ARGS_SOURCE_DIR)
         ExternalProject_Add_Step(dep_${projectname} free_download_space
                 DEPENDEES download # do after download
                 COMMENT "Freeing Space: Removing source archive"
                 WORKING_DIRECTORY ${DEP_DOWNLOAD_DIR}
-                    COMMAND ${CMAKE_COMMAND} -E rm -rf ${projectname}
+                COMMAND ${CMAKE_COMMAND} -E rm -r ${projectname}
         )
-        endif ()
         ExternalProject_Add_Step(dep_${projectname} free_build_space
                 DEPENDEES install # do after install
                 COMMENT "Freeing Space: Removing source and build files"
@@ -276,7 +268,6 @@ else()
         EXCLUDE_FROM_ALL    ON
         INSTALL_DIR         ${DESTDIR}
         DOWNLOAD_DIR        ${DEP_DOWNLOAD_DIR}/${projectname}
-        ${_source_dir_arg}
         ${_gen}
         CMAKE_ARGS
             -DCMAKE_POLICY_VERSION_MINIMUM=3.5
@@ -405,6 +396,10 @@ include(libnoise/libnoise.cmake)
 
 include(Draco/Draco.cmake)
 
+include(FFMPEG/FFMPEG.cmake)
+include(Assimp/Assimp.cmake)
+
+
 # I *think* 1.1 is used for *just* md5 hashing?
 # 3.1 has everything in the right place, but the md5 funcs used are deprecated
 # a grep across the repo shows it is used for other things
@@ -415,12 +410,6 @@ if(NOT OPENSSL_FOUND)
     set(OPENSSL_PKG dep_OpenSSL)
 endif()
 
-include(FFMPEG/FFMPEG.cmake)
-include(Assimp/Assimp.cmake)
-
-include(DataChannel/DataChannel.cmake)
-set(DATACHANNEL_PKG dep_DataChannel)
-
 # we don't want to load a "wrong" openssl when loading curl
 # so, just don't even bother
 # ...i think this is how it works? change if wrong
@@ -494,7 +483,6 @@ set(_dep_list
     dep_wxInspector
     dep_FFMPEG
     dep_Assimp
-    ${DATACHANNEL_PKG}
     )
 
 if (MSVC)

deps/DataChannel/DataChannel.cmake

@@ -1,37 +0,0 @@
-# libdatachannel is the native ICE/DTLS/SCTP implementation used by the
-# GUI WebRTC camera controller. Keep the source revision fixed: the signaling
-# protocol is evolving independently of this transport dependency.
-#
-# It vendors plog, usrsctp and libjuice as git submodules, which a plain
-# GitHub tag tarball does not include. The flatpak sandbox has no network
-# access during the build, so there the manifest itself clones the repo
-# (submodules and all) into the dependency download directory before the
-# sandbox closes. ExternalProject_Add is pointed at that existing checkout
-# instead of being given its own network-dependent download method.
-if (FLATPAK)
-    set(_datachannel_source
-        SOURCE_DIR ${DEP_DOWNLOAD_DIR}/DataChannel
-    )
-else()
-    set(_datachannel_source
-        GIT_REPOSITORY https://github.com/paullouisageneau/libdatachannel.git
-        GIT_TAG v0.24.5
-        GIT_SHALLOW ON
-        GIT_SUBMODULES_RECURSE ON
-    )
-endif()
-
-orcaslicer_add_cmake_project(DataChannel
-    DEPENDS ${OPENSSL_PKG}
-    CMAKE_ARGS
-        -DNO_EXAMPLES=ON
-        -DNO_TESTS=ON
-        -DNO_WEBSOCKET=ON
-        -DNO_MEDIA=ON
-        -DUSE_NICE=OFF
-        -DUSE_SYSTEM_JUICE=OFF
-        -DUSE_SYSTEM_USRSCTP=OFF
-        -DOPENSSL_ROOT_DIR:PATH=${DESTDIR}
-        -DOPENSSL_USE_STATIC_LIBS=ON
-    ${_datachannel_source}
-)

deps/FFMPEG/FFMPEG.cmake

@@ -1,26 +1,14 @@
 set(_conf_cmd ./configure)
 
-set(_ffmpeg_depends)
-set(_ffmpeg_configure_command ${_conf_cmd})
-if (TARGET dep_OpenSSL)
-    set(_ffmpeg_depends DEPENDS dep_OpenSSL)
-    set(_ffmpeg_configure_command
-        ${CMAKE_COMMAND} -E env
-        "PKG_CONFIG_PATH=${DESTDIR}/lib/pkgconfig:$ENV{PKG_CONFIG_PATH}"
-        ${_conf_cmd}
-    )
-endif()
-
 if (MSVC)
     set(_source_dir "${CMAKE_BINARY_DIR}/dep_FFMPEG-prefix/src/dep_FFMPEG")
 
-    set(PREBUILD_URL_arm64 "https://github.com/Noisyfox/FFmpeg-Builds-Orca/releases/download/autobuild-2026-09-18-16-50/ffmpeg-n7.0.3-33-g887d4b4919-winarm64-orca-shared-7.0.zip")
-    set(PREBUILD_HASH_arm64 "da480cbb39680056de824c57ec4dc3bd577b479ebbc310ff1f9dc55cf014b4c1")
-    set(PREBUILD_URL_x64 "https://github.com/Noisyfox/FFmpeg-Builds-Orca/releases/download/autobuild-2026-09-18-16-50/ffmpeg-n7.0.3-33-g887d4b4919-win64-orca-shared-7.0.zip")
-    set(PREBUILD_HASH_x64 "85da19daf198f5548259d8aabb349db84997a3f6e6886d8d7764114add9c6dae")
+    set(PREBUILD_URL_arm64 "https://github.com/Noisyfox/FFmpeg-Builds-Orca/releases/download/autobuild-2026-07-17-14-28/ffmpeg-n7.0.3-31-g9b6ffd74b5-winarm64-orca-shared-7.0.zip")
+    set(PREBUILD_HASH_arm64 "12f4140279f2f8469885e1b5b2e8be9d788882914c21523cacd56989f3548054")
+    set(PREBUILD_URL_x64 "https://github.com/Noisyfox/FFmpeg-Builds-Orca/releases/download/autobuild-2026-07-17-14-28/ffmpeg-n7.0.3-31-g9b6ffd74b5-win64-orca-shared-7.0.zip")
+    set(PREBUILD_HASH_x64 "e65916020ddb9ef84b2666dfbcbfc9b1d67f69d15b4a66db53754637bf2d498c")
 
     ExternalProject_Add(dep_FFMPEG
-        ${_ffmpeg_depends}
         URL ${PREBUILD_URL_${DEPS_ARCH}}
         URL_HASH SHA256=${PREBUILD_HASH_${DEPS_ARCH}}
         DOWNLOAD_DIR ${DEP_DOWNLOAD_DIR}/FFMPEG
@@ -33,8 +21,6 @@ if (MSVC)
     )
 
 else ()
-    set(_openssl_cmd --enable-openssl)
-
     if (APPLE)
         set(_minos_cmd
             "--extra-cflags=-mmacosx-version-min=${DEP_OSX_TARGET}"
@@ -66,11 +52,10 @@ else ()
     endif()
 
     ExternalProject_Add(dep_FFMPEG
-        ${_ffmpeg_depends}
         URL https://github.com/FFmpeg/FFmpeg/archive/refs/tags/n7.0.3.tar.gz
         URL_HASH SHA256=DEEDCABE339165214A3637DF4C86A507AEF0D793CF8774FF68735F4737E8DDBC
         DOWNLOAD_DIR ${DEP_DOWNLOAD_DIR}/FFMPEG
-        CONFIGURE_COMMAND ${_ffmpeg_configure_command}
+        CONFIGURE_COMMAND ${_conf_cmd}
             ${_cross_cmd}
             ${_pic_cmd}
             ${_arch_cmd}
@@ -78,21 +63,20 @@ else ()
             "--prefix=${DESTDIR}"
             ${_link_cmd}
             ${_minos_cmd}
-            ${_openssl_cmd}
             --disable-doc
             --enable-small
             --disable-outdevs
             --disable-filters
             --enable-filter=*null*,afade,*fifo,*format,*resample,aeval,allrgb,allyuv,atempo,pan,*bars,color,*key,crop,draw*,eq*,framerate,*_qsv,*_vaapi,*v4l2*,hw*,scale,volume,test*
             --disable-protocols
-            --enable-protocol=file,fd,pipe,http,https,rtp,tcp,udp
+            --enable-protocol=file,fd,pipe,rtp,udp
             --disable-muxers
             --enable-muxer=rtp
             --disable-encoders
             --disable-decoders
             --enable-decoder=*aac*,h264*,mp3*,mjpeg,rv*
             --disable-demuxers
-            --enable-demuxer=h264,mp3,mov,mpjpeg,rtsp,sdp
+            --enable-demuxer=h264,mp3,mov
             --disable-zlib
             --disable-avdevice
         BUILD_IN_SOURCE ON

docs/HLSD/preset-cache.md

@@ -28,8 +28,8 @@ Per-vendor granularity is what makes the system practical:
 - A vendor whose profile is bumped invalidates only its own cache. The other 60-odd
   vendors keep theirs — even when the bumped vendor is the shared Orca filament
   library everyone else inherits from.
-- The setup wizard loads its vendors through the same routine as startup, so it
-  gets the same speedup without a second code path.
+- The setup wizard, which loads vendors one at a time, gets the same speedup as
+  startup without a second code path.
 - A vendor with no cache, or a broken one, costs only that vendor a parse.
 
 A cache holds *system* presets only. User presets, project settings and modified
@@ -162,20 +162,15 @@ cache nothing can invalidate is worse than no cache.
 
 Vendors load in a fixed order, because filament inheritance crosses exactly one
 boundary: any vendor's filament may inherit from the shared Orca filament library,
-and nothing else reaches across vendors — an `include` is always vendor-local. Only
-installing a vendor's presets crosses it; reading the vendor, from its cache or its
-JSONs, needs nothing from the library. So every other vendor is read while the library
-loads, each is installed against it as soon as both are done, and the results are
-merged in a stable order:
+and nothing else reaches across vendors — an `include` is always vendor-local. The
+library therefore goes first, alone; every other vendor follows in parallel, resolving
+against it; and the results are merged in a stable order:
 
 ```mermaid
 flowchart LR
-    lib["1 · OrcaFilamentLibrary loaded;<br/>meanwhile every other vendor read<br/>from its cache or its JSONs"] --> par["2 · every other vendor installed<br/>in parallel, each into its own bundle,<br/>filaments resolving against the library"] --> merge["3 · bundles merged into one,<br/>in one pass per collection,<br/>in stable vendor order"]
+    lib["1 · OrcaFilamentLibrary<br/>loaded first, synchronously"] --> par["2 · every other vendor in parallel,<br/>each into its own bundle, filaments<br/>resolving against the loaded library"] --> merge["3 · bundles merged into one,<br/>sequentially, in stable vendor order"]
 ```
 
-`PresetBundle::load_vendors` runs these steps for startup and for the setup wizard,
-which hand it the vendors to load and the directory each is installed in.
-
 Whether a vendor comes from its cache or from a parse changes nothing in that
 order — both produce the same bundle, so cached and parsed vendors mix freely in
 one startup.
@@ -216,12 +211,11 @@ shipped cache answered first, so the profile in `<data_dir>/system/` was never p
 and its cache was never written back.
 
 Serving from a cache is not a memory-image restore. The entries are deserialized and
-then installed by `install_vendor`, the routine the JSON path hands the vendor's entries
-to once it has parsed the sub-files: inheritance resolved against the presets installed
-before them and the currently loaded filament library, includes layered in, configs
-flattened onto the collection defaults, validated and registered. An `include` layers
-what the included base states, between the parent and the preset's own keys: the base's
-diff against the
+then installed one by one — inheritance resolved against the presets installed before
+them and the currently loaded filament library, includes layered in, configs flattened
+onto the collection defaults, validated and registered — by the same function the JSON
+path calls straight after parsing a sub-file. An `include` layers what the included
+base states, between the parent and the preset's own keys: the base's diff against the
 default, taken when the base itself was installed and before the per-variant padding
 `inherits` sees, so only what a template sets reaches the presets including it. The two
 paths share everything below the parse, which is what makes a cache-loaded bundle
@@ -229,16 +223,6 @@ indistinguishable from a JSON-loaded one by construction rather than by test cov
 Installation also rebuilds each preset's file path from the local data directory, so a
 shipped cache never carries the generating machine's paths.
 
-Installing an entry is split in two. `resolve_vendor_preset` flattens it, reading only
-what is registered under the names it inherits and includes, and `commit_vendor_preset`
-registers it, the only step that writes anything shared. Entries resolve across threads
-in runs and commit in the order the vendor lists them. A run ends before an entry that
-inherits or includes one already in it, since that one's commit registers what the
-entry resolves against, so no entry in a run reads what another in it registers. An
-entry's parse messages are held until it commits. The bundle, the log's parse and
-install messages and the error count therefore come out as parsing and installing one
-entry at a time would leave them, whatever the listing order.
-
 App upgrades work because a cache normally survives one. Only a deliberate
 `CACHE_VERSION` bump makes an installed cache unreadable, and that is handled at
 install time rather than at load: a vendor whose cache this build cannot read counts
@@ -270,20 +254,17 @@ the wizard caches the *derived JSON*, not another form of the inputs:
 open, the wizard computes the current stamps (one version peek per vendor) and, when
 they match, serves the catalog from the file — no bundle built, no preset installed.
 Caching bundle inputs instead was tried and measured: rebuilding the bundle from
-per-vendor caches costs over a second of preset installation whatever feeds it, so
-only skipping the rebuild entirely wins.
+per-vendor caches costs ~2 s of preset installation whatever feeds it, so only
+skipping the rebuild entirely wins.
 
 Any change to the set — a vendor added, removed or updated, or its cache-only
 `.opc` replaced by a newer one — changes the stamps and retires the whole file;
-the wizard then rebuilds the bundle with `PresetBundle::load_vendors`, the load
-startup uses (per-vendor caches serving where they cover), and writes the catalog
-back. When a vendor fails to load, the filament library included, that open falls
-back to the wizard's own scan of the vendor JSONs, as when no bundle can be built,
-and writes nothing. Selections, region and per-open decorations are applied
-downstream of the cache either way, so a served catalog is indistinguishable from a
-rebuilt one. Nothing ships this file and the updater never touches it; it is a
-locally written artifact, re-derived whenever stale, written through a temp file and
-rename so half a cache is never readable.
+the wizard then rebuilds the bundle vendor by vendor (per-vendor caches serving where
+they cover) and writes the catalog back. Selections, region and per-open decorations
+are applied downstream of the cache either way, so a served catalog is
+indistinguishable from a rebuilt one. Nothing ships this file and the updater never
+touches it; it is a locally written artifact, re-derived whenever stale, written
+through a temp file and rename so half a cache is never readable.
 
 The cache lives under `<data_dir>/cache/`, not beside the vendors: everything that
 scans `<data_dir>/system/` treats any `.opc` there as a vendor, so a non-vendor
@@ -397,13 +378,6 @@ enumerates only `*.json` will find no vendors at all in a packaged build.
   the `CachedPreset` field list — written and read by `visit_entry` in
   `PresetCacheFormat.cpp`, one list for the save, the load and the name peek alike — or
   the cache's own layout or stamps, requires bumping `CACHE_VERSION` by hand.
-- **Adding a kind of reference between presets**, as `inherits` and `include` are:
-  parse the names into `CachedPreset` (a field change, so `CACHE_VERSION` is bumped),
-  have `install_vendor_entries` end a run before an entry that names one already in it
-  and retain what the names point at, look them up only in `resolve_vendor_preset`, and
-  register what they point at only in `commit_vendor_preset`. The listing-order test in
-  `test_vendor_cache.cpp` fails for a kind the runs do not check once its fixture uses
-  it.
 - **The dictionary indexes with a `uint16`**, so `print_config_def` may hold at most
   65535 options and one cache at most 65535 distinct enum value names.
   `CacheDictionary::save` throws past that, which surfaces when CI generates the

docs/HLSD/printer-agent.md

@@ -1,240 +0,0 @@
-# Printer agents
-
-Printer agents isolate printer-specific communication from the rest of OrcaSlicer. The GUI and
-`DeviceManager` operate on a shared set of printer operations and device state; a selected printer
-agent implements those operations for a particular printer ecosystem. The agent boundary allows
-Bambu, Moonraker-based printers, built-in integrations, and Python-provided integrations to use the
-same application workflow without making the GUI understand every printer protocol.
-
-The current boundary is an adapter boundary around the existing application contract. In particular,
-some request fields and message payloads still use the Bambu-shaped representation that existing
-`MachineObject` and `DeviceManager` code consumes. The printer agent is responsible for translating
-that representation into the protocol spoken by its printer. This is an intentional compatibility
-constraint of the current design; the interface is not yet a neutral printer protocol.
-
-The v1 dialect migration path is deliberately narrow. `DeviceManager` currently speaks the Bambu JSON
-dialect because that is the payload shape already used throughout the command and state workflow. The
-v1 `OrcaPrinterAgent` also accepts that Bambu dialect. Its transport path places the small translation
-needed for the target printer at `deliver_to_sink`, keeping the compatibility code at the edge rather
-than spreading it through `DeviceManager` or the agent interface.
-
-The eventual direction is for `DeviceManager` to produce an Orca JSON dialect. The Bambu agent will then
-own the translation from Orca JSON to Bambu's protocol, while `OrcaPrinterAgent` can forward the Orca
-payload directly to its sink. The v1 translation at `deliver_to_sink` can then be removed without
-changing `DeviceManager`, the command callers, or the rest of the agent workflow.
-
-## Components
-
-The system has four relevant layers:
-
-```text
-GUI / DeviceManager / MachineObject
-              |
-        NetworkAgent
-          /       \
- IPrinterAgent   ICloudServiceAgent
-      |                 |
- printer protocol   authentication and cloud services
-```
-
-### `DeviceManager` and `MachineObject`
-
-`DeviceManager` owns the application-facing printer workflow. It maintains `MachineObject` instances,
-updates their state, filters devices for the active printer agent, and initiates operations such as
-homing, temperature changes, printing, subscriptions, and camera playback.
-
-`MachineObject` remains the shared state model used by the GUI. It does not contain the implementation
-of a printer protocol. When a device is discovered or returned by a cloud query, the device is tagged
-with the active `printer_agent_id`. Device lists and selected-machine operations use that tag to avoid
-sending an operation through an agent that does not own the device.
-
-### `NetworkAgent`
-
-`NetworkAgent` is the façade used by the GUI and `DeviceManager`. It owns:
-
-- the currently selected `IPrinterAgent`;
-- the registered cloud-service instances, indexed by provider;
-- callbacks shared by the active printer agent and the application;
-- the forwarding methods for printer commands and cloud operations.
-
-There is one active printer agent for the currently selected printer preset. Switching the preset
-increments the machine-list generation, disconnects the old printer agent, removes its callbacks, and
-installs the newly selected agent. The façade then forwards printer operations to that agent.
-
-Cloud operations are selected separately using a provider key. `NetworkAgent` forwards a cloud request
-to the matching `ICloudServiceAgent`, and forwards cloud camera operations with a device ID. The
-printer agent receives a cloud-agent pointer through `set_cloud_agent()` when it is created, allowing
-printer communication to obtain cloud tokens without depending on a concrete cloud implementation.
-
-### `IPrinterAgent`
-
-`IPrinterAgent` is the printer-facing contract. It covers:
-
-- cloud-relay and direct-LAN message delivery;
-- LAN connection, discovery, binding, and certificates;
-- printer subscriptions and callbacks;
-- print operations;
-- filament synchronization;
-- camera capability and local camera URL reporting;
-- printer command methods.
-
-Concrete built-in implementations include the Bambu wrapper, the native Orca/Moonraker path, and
-other printer-agent implementations registered by the application. A printer agent may use either
-the cloud agent, a direct LAN connection, or both.
-
-### `ICloudServiceAgent`
-
-`ICloudServiceAgent` owns authentication and services provided by a cloud backend. It covers login
-state, tokens, user and printer lists, settings synchronization, model services, cloud messages, and
-cloud camera operations.
-
-Cloud camera operations are device-scoped:
-
-- `get_camera_url(dev_id, callback)` obtains a stream URL for one device;
-- `create_camera_signaling_channel(dev_id)` creates signaling for one device where the provider
-  supports it.
-
-This is separate from the local camera URL exposed by `IPrinterAgent`, which is currently scoped to
-the active printer agent because a normal LAN agent represents one physical printer connection.
-
-## Agent registration and selection
-
-`NetworkAgentFactory` maintains the printer-agent registry. Each registry entry contains an agent ID,
-a display name, and a factory function. Built-in agents register during application initialization.
-Python printer-agent capabilities register dynamically and contribute an agent ID and factory entry.
-
-The selected printer preset contains the printer-agent choice. If no explicit choice is stored, the
-application preserves the existing default behavior: Bambu presets select the Bambu agent and other
-presets select the native Orca agent. When a preset is changed, `GUI_App` resolves the effective agent
-ID, obtains the corresponding cloud agent, creates the printer agent through the registry, and installs
-it in `NetworkAgent`.
-
-The registry rejects conflicting agent IDs. This matters for Python plugins because an agent ID is the
-stable identity used by presets and device ownership; two enabled plugin capabilities must not claim
-the same ID.
-
-## Message and command flow
-
-There are two low-level message paths:
-
-- `send_message()` publishes a command through the printer's cloud relay;
-- `send_message_to_printer()` sends a command directly to the printer over the LAN path.
-
-Both paths accept a JSON string, quality-of-service and flag values, and return the existing network
-status code domain. The agent owns the conversion from that JSON contract to its native transport.
-
-The typed `command_*` methods are the application-facing convenience layer. The five generic defaults
-currently implemented by `IPrinterAgent` construct the existing JSON dialect and route through the
-same message path:
-
-| Method | Default operation |
-| --- | --- |
-| `command_xyz_abs()` | Send `G90` for absolute positioning |
-| `command_auto_leveling()` | Send `G29` for bed leveling |
-| `command_go_home()` | Use the supported homing operation or send `G28` |
-| `command_set_bed()` | Use the supported bed control or send `M140` |
-| `command_set_nozzle()` | Send `M104` for nozzle temperature |
-
-These are compatibility defaults for common printer workflows, not a guarantee that every firmware
-implements every command identically. An agent can override a method when its protocol needs another
-operation. For example, a Klipper configuration may use `BED_MESH_CALIBRATE` instead of `G29`.
-
-The remaining common command methods default to `ORCA_NETWORK_ERR_CMD_NOT_SUPPORTED` because their
-existing behavior is vendor-specific or has no portable implementation:
-
-- AMS RFID refresh;
-- AMS calibration;
-- AMS tray selection;
-- camera start;
-- axis control.
-
-The methods remain on the common interface so an agent that supports them can override them explicitly.
-`sequence_id` remains part of the command contract because `DeviceManager` creates and tracks it as
-the command ID.
-
-## Device ownership and stale responses
-
-Printer-agent ownership is represented by `printer_agent_id` on device records and `MachineObject`
-instances. The active agent ID is attached when a device is discovered, returned by a cloud list, or
-reused after a preset switch. Local-machine configuration also persists the agent ID so a saved LAN
-device is not silently reused by an unrelated agent.
-
-Cloud printer-list responses carry three pieces of request context added by `NetworkAgent`:
-
-```text
-provider   cloud provider used for the request
-agent_id   active printer agent when the request was made
-generation machine-list generation when the request was made
-```
-
-`DeviceManager` accepts the response only when those values still match the current provider, active
-agent, and generation. This prevents a slow response from the previous preset or provider from
-repopulating the current device list.
-
-The provider mapping is currently selected by `GUI_App`: the Bambu agent maps to the Bambu cloud
-provider and other agents map to the Orca cloud provider. The generation check protects that existing
-selection from races; it does not make cloud-provider ownership intrinsic to an agent. Cloud-printer
-ownership and the broader Orca cloud services are therefore still separate architectural concerns.
-
-## Python printer agents
-
-`PrinterAgentPluginCapability` implements `IPrinterAgent` directly. The live capability object is
-registered with `NetworkAgentFactory` and handed out as the printer agent when its agent ID is selected.
-The plugin receives the selected `ICloudServiceAgent` through `set_cloud_agent()` just like a built-in
-printer agent.
-
-Python plugins must implement the core communication and lifecycle methods required by the interface,
-including agent metadata, printer connection, discovery callbacks, and the two message-send methods.
-Methods that are meaningful only to a particular printer are optional overrides where the C++ base
-class provides a default.
-
-All ten `command_*` methods are available in the Python binding and in the trampoline. Their override
-status is intentionally optional:
-
-- the five generic commands use the C++ default when Python does not override them;
-- the five vendor-specific commands return `NOT_SUPPORTED` unless Python supplies an implementation;
-- a Python implementation can replace either behavior for its own protocol.
-
-The Python camera binding exposes HTTP, HTTPS, RTSP, and HTTP-snapshot modes. WebRTC remains a
-built-in C++ camera mode, but is not exposed as a Python mode because the current Python capability
-does not provide the corresponding cloud signaling-channel contract.
-
-## Camera playback boundary
-
-The camera stream mode describes how a stream is obtained; it does not by itself define ownership of
-the wxWidgets view that renders it. `MediaPlayCtrl` selects and tears down the active backend, while
-the wx parent owns the child window or renderer. This is important because a web view, native media
-control, and frame-based/WebRTC renderer have different wx window-lifetime requirements.
-
-Cloud URL and signaling requests are routed through `NetworkAgent` to the cloud provider selected for
-the device. Local URL requests are routed to the active printer agent. The distinction keeps cloud
-account services device-scoped while preserving the current one-LAN-agent/one-printer model.
-
-## Compatibility constraints
-
-The printer-agent boundary intentionally preserves several existing application contracts:
-
-- Bambu-shaped JSON is still the shared command representation;
-- existing network status codes are reused, with Orca-specific unsupported/capability errors added
-  in the Orca-reserved range;
-- `MachineObject` remains the shared device-state model;
-- preset and local-machine data retain compatibility with the existing agent-selection behavior;
-- Python plugins use the existing capability and pybind11 registration system.
-
-The agent abstraction is therefore responsible for containing vendor differences, not for pretending
-that all vendor protocols are identical. The planned Orca JSON dialect is the protocol-neutral command
-model for the `DeviceManager`/agent boundary. Once it is introduced, Bambu-specific translation remains
-inside the Bambu agent and the Orca agent's v1 sink adapter can be removed as a self-contained cleanup.
-
-## Main implementation locations
-
-- [`IPrinterAgent`](../../src/slic3r/Utils/IPrinterAgent.hpp) — printer-agent contract and generic command defaults
-- [`ICloudServiceAgent`](../../src/slic3r/Utils/ICloudServiceAgent.hpp) — cloud service and per-device
-  cloud camera contract
-- [`NetworkAgent`](../../src/slic3r/Utils/NetworkAgent.hpp) — façade and dispatch between active agents
-- [`NetworkAgentFactory`](../../src/slic3r/Utils/NetworkAgentFactory.hpp) — built-in and Python agent registry
-- [`DeviceManager`](../../src/slic3r/GUI/DeviceCore/DevManager.cpp) — device ownership, filtering, and
-  stale-response checks
-- [`PrinterAgentPluginCapability`](../../src/slic3r/plugin/pluginTypes/printerAgent/PrinterAgentPluginCapability.cpp)
-  — Python bindings
-- [`MediaPlayCtrl`](../../src/slic3r/GUI/MediaPlayCtrl.cpp) — camera backend selection and playback lifecycle

resources/profiles/OrcaFilamentLibrary.json

@@ -1,6 +1,6 @@
 {
 	"name": "OrcaFilamentLibrary",
-	"version": "02.04.00.17",
+	"version": "02.04.00.15",
 	"force_update": "0",
 	"description": "Orca Filament Library",
 	"filament_list": [

resources/profiles/OrcaFilamentLibrary/filament/Elegoo/Elegoo PLA @base.json

@@ -6,7 +6,7 @@
 	"filament_id": "OFvgE0Zh",
 	"instantiation": "false",
 	"fan_cooling_layer_time": [
-		"85"
+		"81"
 	],
 	"fan_min_speed": [
 		"50"

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth ABS rABS.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PA Adura FDA.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PA Adura.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PA-CF Adura X.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PA6 Addlantis.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PC BLend HT LCF.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PETG Base.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PETG ESD.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PETG Economy.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PETG Flame v0.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PETG PRO Matte.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"1"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PETG rPETG Matte.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PETG-CF Rigid X.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"0"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PLA E-PLA.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PLA Economy.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PLA HT-PLA PRO Matte.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PLA Premium Silk.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PLA Textura.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PLA Wood.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"0"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PLA X-PLA High Speed.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PLA X-PLA.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PLA rPLA RE-ADD.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth PVDF Adamant S1.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth TPU EasyFlex.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth TPU Pro Matte 85A.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/profiles/OrcaFilamentLibrary/filament/addnorth/BBL/addnorth TPU Pro Matte 95A.json

@@ -111,7 +111,6 @@
 		"1"
 	],
 	"enable_pressure_advance": [
-		"0",
 		"0"
 	],
 	"eng_plate_temp": [
@@ -317,7 +316,6 @@
 		"2"
 	],
 	"pressure_advance": [
-		"0.02",
 		"0.02"
 	],
 	"reduce_fan_stop_start_freq": [

resources/web/dialog/PluginsDialog/index.js

@@ -575,7 +575,7 @@ function CapabilityCanRun(plugin, capability) {
 }
 
 function IsPluginChecked(plugin) {
-  return plugin.is_loaded;
+  return GetStatus(plugin) === "Activated";
 }
 
 function HasMixedCapabilityState(plugin) {
@@ -1347,8 +1347,6 @@ function StatusDescription(plugin) {
       return "This plugin is still loading.";
     case "Error":
       return "This plugin is blocked until its error is fixed.";
-    case "RuntimeError":
-      return "This plugin is loaded but a capability reported an error.";
     case "Inactive":
     default:
       return "This plugin is inactive. Activate it to install or load it.";

resources/web/dialog/PluginsDialog/styles.css

@@ -424,11 +424,6 @@ body.pane-resizing {
   font-weight: 600;
 }
 
-.status-cell.status-runtimeerror {
-  color: var(--plugin-status-warn);
-  font-weight: 600;
-}
-
 .status-cell.status-loading {
   color: var(--plugin-status-warn);
   font-weight: 600;
@@ -685,11 +680,6 @@ body.pane-resizing {
   color: var(--plugin-status-danger);
 }
 
-.detail-status-chip.status-runtimeerror {
-  background: var(--plugin-status-warn-bg);
-  color: var(--plugin-status-warn);
-}
-
 .detail-status-chip.status-loading {
   background: var(--plugin-status-warn-bg);
   color: var(--plugin-status-warn);

resources/web/model/model.js

@@ -214,9 +214,9 @@ function ShowModelInfo( pModel )
 	
 	SendWXDebugInfo("Model Name:  "+sModelName);
 	
-	$('#ModelName').text(sModelName);
+	$('#ModelName').html(sModelName);
 	$('#ModelName').attr('title',sModelName);
-    $('#ModelAuthorName').text(sModelAuthor);
+    $('#ModelAuthorName').html(sModelAuthor);
 	
 	switch(UploadType)
 	{
@@ -268,7 +268,7 @@ function ShowModelInfo( pModel )
 			break;
 	}
 	
-	$('#Model_Desc').empty().append( SanitizeDescHtml( html_decode(sModelDesc) ) );
+	$('#Model_Desc').html( html_decode(sModelDesc) );
 			
 	let ModelPreviewList=pModel.preview_img;				
     let TotalPreview=ModelPreviewList.length;
@@ -281,15 +281,16 @@ function ShowModelInfo( pModel )
 	
     if(TotalPreview>0)
 	{
-		$('#ModelPreviewList').empty();
+		let htmlPreview='';
 		for(let pn=0;pn<TotalPreview;pn++)			
 		{	
 			//let FTmpPath=decodeURIComponent(ModelPreviewList[pn]);
 			let FTmpPath=ModelPreviewList[pn]['filepath'];
 			
-			$('#ModelPreviewList').append( $('<div class="swiper-slide"></div>').append( $('<img class="Model_PrevImg" />').attr('src',FTmpPath) ) );
+			htmlPreview+='<div class="swiper-slide"><img class="Model_PrevImg" src="'+FTmpPath+'" /></div>';
 		}
 			
+	    $('#ModelPreviewList').html(htmlPreview);
 		$('#Model_Preview_Image').viewer({
 			title: false,
 		    fullsreen: false,
@@ -409,8 +410,7 @@ function ConstructFileHtml( ID, pItem )
 {
 	let fTotal=pItem.length;
 	
-	let pBoard=$('#'+ID+'  .FileListBoard');
-	pBoard.empty();
+	let strHtml='';
 	for( let f=0;f<fTotal;f++ )
 	{
 		let pOne=pItem[f];
@@ -443,139 +443,39 @@ function ConstructFileHtml( ID, pItem )
 			ImgPath='img/default.png';			
 		}		
 			
-		//Add html. File names come from the 3MF, so build the nodes rather than concatenating markup.
-		let pIconImg=$('<img />').attr('src',ImgPath);
-		let pMenu=$('<div class="FileMenu"><img src="img/s.svg" /></div>');
+		//Add html
 		if( strClass!='ImageIcon' )
 		{
-			pMenu.on('click', function(){ OnClickOpenFile(tPath); });
+		strHtml+='<div class="FileItem">'+
+				 '	<div class="'+strClass+'"><img src="'+ImgPath+'" /></div>'+
+				 '	<div class="FileText">'+
+			     '		<div class="FileName">'+tName+'</div>'+
+				 '	</div>'+
+				 '	<div class="FileMenu" onClick="OnClickOpenFile(\''+tPath+'\')"><img src="img/s.svg" /></div>'+
+				 '</div>';
 		}
 		else
 		{
 			ImgID++;
 			let TmpImgID="AF"+ImgID;
 			
-			pIconImg.attr('id',TmpImgID);
-			pMenu.on('click', function(){ OnClickOpenImage(TmpImgID); });
+		strHtml+='<div class="FileItem">'+
+				 '	<div class="'+strClass+'"><img id="'+TmpImgID+'" src="'+ImgPath+'" /></div>'+
+				 '	<div class="FileText">'+
+			     '		<div class="FileName">'+tName+'</div>'+
+				 '	</div>'+
+				 '	<div class="FileMenu" onClick="OnClickOpenImage(\''+TmpImgID+'\')"><img src="img/s.svg" /></div>'+
+				 '</div>';			
+		}
 	}
 	
-		let pFileItem=$('<div class="FileItem"></div>');
-		pFileItem.append( $('<div></div>').addClass(strClass).append(pIconImg) );
-		pFileItem.append( $('<div class="FileText"></div>').append( $('<div class="FileName"></div>').text(tName).attr('title',tName) ) );
-		pFileItem.append( pMenu );
-		pBoard.append( pFileItem );
-	}
+	$('#'+ID+'  .FileListBoard').html(strHtml);
 	
     if( fTotal>0 )
 		$('#'+ID).show();
 }
 
 
-// Descriptions are untrusted 3MF metadata that may carry rich-text HTML (e.g. from MakerWorld).
-// Rebuild them from an inert parse, keeping only plain formatting tags and http(s) links and images.
-var DescAllowedTags=['P','BR','B','STRONG','I','EM','U','S','STRIKE','DEL','INS','SUB','SUP','SMALL','MARK',
-	'Q','ABBR','KBD','WBR','H1','H2','H3','H4','H5','H6','UL','OL','LI','DL','DT','DD','BLOCKQUOTE','PRE','CODE',
-	'HR','SPAN','DIV','FIGURE','FIGCAPTION','TABLE','CAPTION','THEAD','TBODY','TFOOT','TR','TH','TD','A','IMG'];
-// Plain attributes kept per tag; the numeric ones must be plain non-negative integers.
-var DescAllowedAttrs={'IMG':['alt','title','width','height'],'TD':['colspan','rowspan'],'TH':['colspan','rowspan'],'OL':['start']};
-var DescNumericAttrs=['width','height','colspan','rowspan','start'];
-// Dropped together with their content; any other unknown tag is unwrapped to its children.
-var DescDroppedTags=['SCRIPT','STYLE','TEMPLATE','NOSCRIPT','TEXTAREA','TITLE','IFRAME','FRAME','OBJECT','EMBED','SVG','MATH'];
-
-function IsHttpUrl( strUrl )
-{
-	// The scheme must be written as is, so nothing the URL parser would strip can precede or split it.
-	if( typeof strUrl!='string' || !/^https?:/i.test(strUrl) )
-		return false;
-	try
-	{
-		let sProtocol=new URL(strUrl).protocol;
-		return sProtocol=='http:' || sProtocol=='https:';
-	}
-	catch(e)
-	{
-		return false;
-	}
-}
-
-// Images load as soon as the page opens, so only https sources are kept: no plain-http requests to the local network.
-function IsHttpsUrl( strUrl )
-{
-	return IsHttpUrl(strUrl) && new URL(strUrl).protocol=='https:';
-}
-
-// Embedded YouTube players become a plain link to the video.
-function GetYouTubeEmbedUrl( pNode )
-{
-	let sSrc=pNode.getAttribute('src');
-	if( !IsHttpUrl(sSrc) )
-		return null;
-	let pUrl=new URL(sSrc);
-	return ( pUrl.origin=='https://www.youtube.com' && pUrl.pathname.indexOf('/embed/')==0 ) ? pUrl.href : null;
-}
-
-function CopyDescNodes( pSrc, pDst )
-{
-	for( let pNode=pSrc.firstChild;pNode!=null;pNode=pNode.nextSibling )
-	{
-		if( pNode.nodeType==Node.TEXT_NODE )
-		{
-			pDst.appendChild( document.createTextNode(pNode.nodeValue) );
-			continue;
-		}
-		if( pNode.nodeType!=Node.ELEMENT_NODE )
-			continue;
-		
-		let sTag=pNode.nodeName.toUpperCase();
-		if( sTag=='IFRAME' )
-		{
-			let sVideoUrl=GetYouTubeEmbedUrl(pNode);
-			if( sVideoUrl!=null )
-			{
-				let pLink=document.createElement('A');
-				pLink.setAttribute('href',sVideoUrl);
-				pLink.textContent=sVideoUrl;
-				pDst.appendChild(pLink);
-			}
-			continue;
-		}
-		if( $.inArray(sTag,DescDroppedTags)>=0 )
-			continue;
-		if( $.inArray(sTag,DescAllowedTags)<0 )
-		{
-			CopyDescNodes(pNode,pDst);
-			continue;
-		}
-		
-		let pElem=document.createElement(sTag);
-		if( sTag=='A' && IsHttpUrl(pNode.getAttribute('href')) )
-			pElem.setAttribute('href',pNode.getAttribute('href'));
-		else if( sTag=='IMG' )
-		{
-			if( !IsHttpsUrl(pNode.getAttribute('src')) )
-				continue;
-			pElem.setAttribute('src',pNode.getAttribute('src'));
-		}
-		$.each( DescAllowedAttrs[sTag]||[], function(i,sAttr){
-			let sValue=pNode.getAttribute(sAttr);
-			if( sValue!=null && ( $.inArray(sAttr,DescNumericAttrs)<0 || /^\d+$/.test(sValue) ) )
-				pElem.setAttribute(sAttr,sValue);
-		});
-		CopyDescNodes(pNode,pElem);
-		pDst.appendChild(pElem);
-	}
-}
-
-function SanitizeDescHtml( strHtml )
-{
-	let pFragment=document.createDocumentFragment();
-	// A DOMParser document is inert: it runs no scripts and loads no resources.
-	let pDoc=new DOMParser().parseFromString(strHtml,'text/html');
-	if( pDoc && pDoc.body )
-		CopyDescNodes(pDoc.body,pFragment);
-	return pFragment;
-}
-
 function ShowProfilelInfo( pProfile )
 {
 	//==========Profile Info==========
@@ -583,10 +483,10 @@ function ShowProfilelInfo( pProfile )
 	let sProfileAuthor=decodeURIComponent(pProfile.author);
 	let sProfileDesc=decodeURIComponent(pProfile.description);
 	
-	$('#ProfileName').text(sProfileName);
-    $('#ProfileAuthor').text(sProfileAuthor);
+	$('#ProfileName').html(sProfileName);
+    $('#ProfileAuthor').html(sProfileAuthor);
 		
-	$('#Profile_Desc').empty().append( SanitizeDescHtml( html_decode(sProfileDesc) ) );
+	$('#Profile_Desc').html( html_decode(sProfileDesc) );
 			
 	let ProfilePreviewList=pProfile.preview_img;				
     let TotalPreview=ProfilePreviewList.length;
@@ -599,14 +499,15 @@ function ShowProfilelInfo( pProfile )
 	
     if(TotalPreview>0)
 	{
-		$('#ProfilePreviewList').empty();
+		let htmlPreview='';
 		for(let pn=0;pn<TotalPreview;pn++)			
 		{	
 			let FTmpPath=ProfilePreviewList[pn]['filepath'];
 			
-			$('#ProfilePreviewList').append( $('<div class="swiper-slide"></div>').append( $('<img class="Model_PrevImg" />').attr('src',FTmpPath) ) );
+			htmlPreview+='<div class="swiper-slide"><img class="Model_PrevImg" src="'+FTmpPath+'" /></div>';
 		}
 			
+		$('#ProfilePreviewList').html(htmlPreview);
 		$('#Profile_Preview_Image').viewer({
 			title: false,
 		    fullsreen: false,

scripts/flatpak/com.orcaslicer.OrcaSlicer.yml

@@ -331,15 +331,6 @@ modules:
         sha256: deedcabe339165214a3637df4c86a507aef0d793cf8774ff68735f4737e8ddbc
         dest: external-packages/FFMPEG
 
-      # libdatachannel v0.24.5
-      # The Git checkout includes the submodules that are missing from the
-      # GitHub source archive. DataChannel.cmake consumes it as SOURCE_DIR.
-      - type: git
-        url: https://github.com/paullouisageneau/libdatachannel.git
-        tag: v0.24.5
-        commit: 443f6934d9007eb7076ab7825ba330f355fcbead
-        dest: external-packages/DataChannel
-
       # ---------------------------------------------------------------
       # Fallback archives for deps normally provided by the GNOME SDK.
       # These are only used if find_package() fails to locate them.

src/OrcaSlicer.cpp

@@ -2116,12 +2116,7 @@ int CLI::run(int argc, char **argv)
 
     // One resolver for the whole run, so presets from the same vendor tree share its load.
     std::unique_ptr<PresetBundle> system_preset_resolver;
-    auto ensure_system_preset_resolver = [&system_preset_resolver]() -> PresetBundle & {
-        if (!system_preset_resolver)
-            system_preset_resolver = std::make_unique<PresetBundle>();
-        return *system_preset_resolver;
-    };
-    auto resolve_preset = [&ensure_cli_preset_bundle, &ensure_system_preset_resolver](const std::string &file, DynamicPrintConfig &config,
+    auto resolve_preset = [&ensure_cli_preset_bundle, &system_preset_resolver](const std::string &file, DynamicPrintConfig &config,
                                                                                std::string &config_type, const std::string &config_from,
                                                                                bool probe_type, std::string &error) {
         const auto *inherits = config.option<ConfigOptionString>(BBL_JSON_KEY_INHERITS);
@@ -2131,7 +2126,9 @@ int CLI::run(int argc, char **argv)
         PresetBundle                 *bundle = nullptr;
         bool                          allow_source_manifest = false;
         if (config_from == "system") {
-            bundle                = &ensure_system_preset_resolver();
+            if (!system_preset_resolver)
+                system_preset_resolver = std::make_unique<PresetBundle>();
+            bundle                = system_preset_resolver.get();
             allow_source_manifest = true;
         } else {
             bundle = ensure_cli_preset_bundle(error);
@@ -3123,44 +3120,6 @@ int CLI::run(int argc, char **argv)
         return 0;
     };
 
-    // Load the project's printer and process settings as the GUI loads its presets: over the default preset,
-    // with every key the project does not list as changed, including keys saved before an option existed,
-    // taken from its current system preset.
-    auto load_project_preset = [this, &ensure_system_preset_resolver, &current_different_settings, filament_count](const std::string &system_name, Preset::Type type) {
-        if (system_name.empty())
-            return;
-        // Preset bookkeeping the CLI keeps in its own groups, e.g. inherits_group and print_compatible_printers.
-        static const std::set<std::string> bookkeeping_keys = {"inherits", "compatible_printers", "compatible_prints", "compatible_printers_condition",
-                                                               "compatible_prints_condition", "print_settings_id", "printer_settings_id"};
-        const size_t       index = type == Preset::TYPE_PRINTER ? filament_count + 1 : 0;
-        PresetBundle      &resolver = ensure_system_preset_resolver();
-        DynamicPrintConfig system_config;
-        t_config_option_keys keys;
-        const DynamicPrintConfig config = Preset::load_external_config(type,
-            type == Preset::TYPE_PRINTER ? resolver.printers.default_preset_for(m_print_config).config : resolver.prints.default_preset().config,
-            m_print_config, PresetBundle::project_different_keys(index < current_different_settings.size() ? current_different_settings[index] : std::string()),
-            [&](const std::string &) -> DynamicPrintConfig * {
-                std::string error;
-                if (resolver.resolve_system_preset(system_config, type, system_name, config_substitution_rule, error))
-                    return &system_config;
-                BOOST_LOG_TRIVIAL(warning) << boost::format("CLI: system preset '%1%' not resolved (%2%); the project keeps its values") % system_name % error;
-                return nullptr;
-            }, &keys);
-        for (const std::string &key : keys) {
-            const ConfigOption *opt = config.option(key);
-            const ConfigOption *old = m_print_config.option(key);
-            if (bookkeeping_keys.count(key) != 0 || opt == nullptr || (old != nullptr && *old == *opt))
-                continue;
-            BOOST_LOG_TRIVIAL(info) << boost::format("CLI: %1% from '%2%': %3% -> %4%") % key % system_name % (old ? old->serialize() : std::string("(missing)")) % opt->serialize();
-            m_print_config.set_key_value(key, opt->clone());
-        }
-    };
-    // The --uptodate path refreshes the project from its own system configs.
-    if (new_printer_name.empty() && load_machine_config.empty())
-        load_project_preset(current_printer_system_name, Preset::TYPE_PRINTER);
-    if (new_process_name.empty() && load_process_config.empty())
-        load_project_preset(current_process_system_name, Preset::TYPE_PRINT);
-
     std::vector<std::string>& different_settings = m_print_config.option<ConfigOptionStrings>("different_settings_to_system", true)->values;
     std::vector<std::string>& inherits_group = m_print_config.option<ConfigOptionStrings>("inherits_group", true)->values;
     inherits_group.resize(filament_count + 2, std::string());
@@ -3517,14 +3476,6 @@ int CLI::run(int argc, char **argv)
         }
         new_variant_counts = old_variant_counts;
         //filament_variant_count = old_variant_counts;
-        //ORCA: lay the per-variant options out one value per variant of the current filaments before each
-        //      loaded filament replaces its own variants, including an option only a loaded filament
-        //      defines, which otherwise starts as a single default value and never reaches the others.
-        for (const DynamicPrintConfig &config : load_filaments_config)
-            for (const std::string &opt_key : filament_options_with_variant)
-                if (opt_key != "filament_extruder_variant" && config.has(opt_key))
-                    m_print_config.option(opt_key, true);
-        normalize_filament_values_to_variants(m_print_config);
         for (int index = 0; index < load_filaments_config.size(); index++) {
             DynamicPrintConfig&  config = load_filaments_config[index];
             int filament_index = load_filaments_index[index];
@@ -3696,25 +3647,6 @@ int CLI::run(int argc, char **argv)
                 }
             }
 
-            //ORCA: a per-variant option the loaded filament does not define keeps the values of the
-            //      variants the filament already had, and a variant new to it takes its first one's.
-            const int old_start = old_start_indice[filament_index - 1];
-            std::vector<int> kept_variant_indice = new_variant_indice;
-            for (int &i : kept_variant_indice)
-                if (i < 0)
-                    i = old_start;
-            for (const std::string &opt_key : filament_options_with_variant) {
-                if (config.has(opt_key))
-                    continue;
-                auto *opt_vec_dst = dynamic_cast<ConfigOptionVectorBase *>(m_print_config.option(opt_key));
-                if (opt_vec_dst == nullptr || opt_vec_dst->size() < size_t(old_start + old_variant_count))
-                    continue;
-                // set_with_restore_2() pads its source in place
-                std::unique_ptr<ConfigOption> old_values(opt_vec_dst->clone());
-                opt_vec_dst->set_with_restore_2(static_cast<ConfigOptionVectorBase *>(old_values.get()), kept_variant_indice, old_start,
-                                                old_variant_count, true);
-            }
-
             //update the old index
             if (old_variant_count != new_variant_count)
             {
@@ -4149,9 +4081,6 @@ int CLI::run(int argc, char **argv)
     if (printer_technology == ptFFF) {
         fff_print_config.apply(m_print_config, true);
         m_print_config.apply(fff_print_config, true);
-        //ORCA: an option no preset or project defines has just come in as its single default value, and a
-        //      command line override may hold one value per filament.
-        normalize_filament_values_to_variants(m_print_config);
     } else {
         boost::nowide::cerr << "invalid printer_technology " << std::endl;
         record_exit_reson(outfile_dir, CLI_INVALID_PRINTER_TECH, 0, cli_errors[CLI_INVALID_PRINTER_TECH], sliced_info);

src/libslic3r/AppConfig.cpp

@@ -511,10 +511,6 @@ void AppConfig::set_defaults()
         set_bool("enable_high_low_temp_mixed_printing", false);
     }
 
-    if (get("remember_print_action").empty()) {
-        set_bool("remember_print_action", false);
-    }
-
     if (get("ignore_ext_filament_in_filament_map").empty()){
         set_bool("ignore_ext_filament_in_filament_map", false);
     }

src/libslic3r/CMakeLists.txt

@@ -355,7 +355,6 @@ set(lisbslic3r_sources
     Optimize/Optimizer.hpp
     Orient.cpp
     Orient.hpp
-    ParallelResolve.hpp
     ParameterUtils.cpp
     ParameterUtils.hpp
     pchheader.cpp

src/libslic3r/ClipperUtils.cpp

@@ -1,7 +1,11 @@
+#include <algorithm>
+#include <cmath>
 #include <limits>
 #include <numeric>
 #include <unordered_map>
 
+#include <tbb/parallel_for.h>
+
 #include "ClipperUtils.hpp"
 #include "Geometry.hpp"
 #include "ShortestPath.hpp"
@@ -813,6 +817,69 @@ Slic3r::ExPolygons intersection_ex(const Slic3r::Surfaces &subject, const Slic3r
     { return _clipper_ex(ClipperLib::ctIntersection, ClipperUtils::SurfacesProvider(subject), ClipperUtils::SurfacesProvider(clip), do_safety_offset); }
 Slic3r::ExPolygons intersection_ex(const Slic3r::SurfacesPtr &subject, const Slic3r::ExPolygons &clip, ApplySafetyOffset do_safety_offset)
     { return _clipper_ex(ClipperLib::ctIntersection, ClipperUtils::SurfacesPtrProvider(subject), ClipperUtils::ExPolygonsProvider(clip), do_safety_offset); }
+
+namespace ClipperUtils {
+    std::vector<ExPolygonsTile> tile_expolygons(const ExPolygons &expolygons, size_t per_tile)
+    {
+        BoundingBox              extent;
+        std::vector<BoundingBox> bboxes;
+        bboxes.reserve(expolygons.size());
+        for (const ExPolygon &expoly : expolygons) {
+            bboxes.emplace_back(get_extents(expoly));
+            extent.merge(bboxes.back());
+        }
+        if (! extent.defined)
+            return {};
+        const int     tiles  = std::clamp(int(std::sqrt(double(expolygons.size()) / double(std::max<size_t>(per_tile, 1)))), 1, 32);
+        const Point   size   = extent.size();
+        const coord_t tile_w = std::max<coord_t>(1, size.x() / tiles + 1), tile_h = std::max<coord_t>(1, size.y() / tiles + 1);
+        std::vector<ExPolygonsTile> out(size_t(tiles * tiles));
+        for (size_t i = 0; i < expolygons.size(); ++ i) {
+            const Point c = bboxes[i].center();
+            ExPolygonsTile &tile = out[size_t(std::clamp(int((c.y() - extent.min.y()) / tile_h), 0, tiles - 1) * tiles +
+                                              std::clamp(int((c.x() - extent.min.x()) / tile_w), 0, tiles - 1))];
+            tile.members.emplace_back(i);
+            tile.bbox.merge(bboxes[i]);
+        }
+        out.erase(std::remove_if(out.begin(), out.end(), [](const ExPolygonsTile &tile) { return tile.members.empty(); }), out.end());
+        return out;
+    }
+}
+
+static Slic3r::ExPolygons clipper_ex_by_piece(ClipperLib::ClipType clipType, const Slic3r::ExPolygons &subject, const Slic3r::Polygons &clip, ApplySafetyOffset do_safety_offset)
+{
+    // A few dozen subject ExPolygons to a tile, each tile one ClipperLib call with the clip cut to the tile's box.
+    const std::vector<ClipperUtils::ExPolygonsTile> tiles = ClipperUtils::tile_expolygons(subject, 32);
+    std::vector<BoundingBox> clip_bboxes;
+    clip_bboxes.reserve(clip.size());
+    for (const Polygon &polygon : clip)
+        clip_bboxes.emplace_back(get_extents(polygon));
+
+    std::vector<Slic3r::ExPolygons> out_tiles(tiles.size());
+    tbb::parallel_for(size_t(0), tiles.size(), [&](size_t tile_idx) {
+        const ClipperUtils::ExPolygonsTile &tile = tiles[tile_idx];
+        Slic3r::ExPolygons local_subject;
+        local_subject.reserve(tile.members.size());
+        for (size_t i : tile.members)
+            local_subject.emplace_back(subject[i]);
+        // Grown so that the cut edges of the clip stay clear of the subject, also after the safety offset.
+        const BoundingBox bbox = tile.bbox.inflated(SCALED_EPSILON);
+        Polygons local_clip;
+        for (size_t i = 0; i < clip.size(); ++i)
+            if (clip_bboxes[i].overlap(bbox))
+                if (Polygon clipped = ClipperUtils::clip_clipper_polygon_with_subject_bbox(clip[i], bbox); ! clipped.empty())
+                    local_clip.emplace_back(std::move(clipped));
+        out_tiles[tile_idx] = _clipper_ex(clipType, ClipperUtils::ExPolygonsProvider(local_subject), ClipperUtils::PolygonsProvider(local_clip), do_safety_offset);
+    });
+    Slic3r::ExPolygons out;
+    for (Slic3r::ExPolygons &out_tile : out_tiles)
+        append(out, std::move(out_tile));
+    return out;
+}
+Slic3r::ExPolygons diff_ex_by_piece(const Slic3r::ExPolygons &subject, const Slic3r::Polygons &clip, ApplySafetyOffset do_safety_offset)
+    { return clipper_ex_by_piece(ClipperLib::ctDifference, subject, clip, do_safety_offset); }
+Slic3r::ExPolygons intersection_ex_by_piece(const Slic3r::ExPolygons &subject, const Slic3r::Polygons &clip, ApplySafetyOffset do_safety_offset)
+    { return clipper_ex_by_piece(ClipperLib::ctIntersection, subject, clip, do_safety_offset); }
 // May be used to "heal" unusual models (3DLabPrints etc.) by providing fill_type (pftEvenOdd, pftNonZero, pftPositive, pftNegative).
 Slic3r::ExPolygons union_ex(const Slic3r::Polygons &subject, ClipperLib::PolyFillType fill_type)
     { return _clipper_ex(ClipperLib::ctUnion, ClipperUtils::PolygonsProvider(subject), ClipperUtils::EmptyPathsProvider(), ApplySafetyOffset::No, fill_type); }

src/libslic3r/ClipperUtils.hpp

@@ -2,6 +2,7 @@
 #define slic3r_ClipperUtils_hpp_
 
 #include "libslic3r.h"
+#include "BoundingBox.hpp"
 #include "clipper.hpp"
 #include "ExPolygon.hpp"
 #include "Polygon.hpp"
@@ -321,6 +322,15 @@ namespace ClipperUtils {
     [[nodiscard]] Polygons clip_clipper_polygons_with_subject_bbox(const ExPolygon &src, const BoundingBox &bbox, const bool get_entire_polygons = false);
     [[nodiscard]] Polygons clip_clipper_polygons_with_subject_bbox(const ExPolygons &src, const BoundingBox &bbox, const bool get_entire_polygons = false);
 
+    // Splits ExPolygons into tiles by the centres of their boxes, about `per_tile` of them to a tile, to run ClipperLib on a
+    // layer of many pieces tile by tile. Returns the non-empty tiles, each with the indices of its ExPolygons and their box.
+    struct ExPolygonsTile
+    {
+        BoundingBox         bbox;
+        std::vector<size_t> members;
+    };
+    [[nodiscard]] std::vector<ExPolygonsTile> tile_expolygons(const ExPolygons &expolygons, size_t per_tile);
+
     }
 
 // Perform union of input polygons using the non-zero rule, convert to ExPolygons.
@@ -518,6 +528,11 @@ Slic3r::ExPolygons intersection_ex(const Slic3r::Surfaces &subject, const Slic3r
 Slic3r::ExPolygons intersection_ex(const Slic3r::Surfaces &subject, const Slic3r::ExPolygons &clip, ApplySafetyOffset do_safety_offset = ApplySafetyOffset::No);
 Slic3r::ExPolygons intersection_ex(const Slic3r::Surfaces &subject, const Slic3r::Surfaces &clip, ApplySafetyOffset do_safety_offset = ApplySafetyOffset::No);
 Slic3r::ExPolygons intersection_ex(const Slic3r::SurfacesPtr &subject, const Slic3r::ExPolygons &clip, ApplySafetyOffset do_safety_offset = ApplySafetyOffset::No);
+// diff_ex() / intersection_ex() of the subject split into tiles, each against only the part of the clip near it, the tiles in
+// parallel. The same area as the operation on the whole subject when its ExPolygons do not overlap, and much faster for a
+// subject of thousands of pieces spread over a layer: ClipperLib slows down with the number of edges crossing a scan line.
+Slic3r::ExPolygons diff_ex_by_piece(const Slic3r::ExPolygons &subject, const Slic3r::Polygons &clip, ApplySafetyOffset do_safety_offset = ApplySafetyOffset::No);
+Slic3r::ExPolygons intersection_ex_by_piece(const Slic3r::ExPolygons &subject, const Slic3r::Polygons &clip, ApplySafetyOffset do_safety_offset = ApplySafetyOffset::No);
 Slic3r::Polylines  intersection_pl(const Slic3r::Polylines &subject, const Slic3r::Polygon &clip);
 Slic3r::Polylines  intersection_pl(const Slic3r::Polyline &subject, const Slic3r::ExPolygon &clip);
 Slic3r::Polylines  intersection_pl(const Slic3r::Polylines &subject, const Slic3r::ExPolygon &clip);

src/libslic3r/Config.cpp

@@ -849,19 +849,6 @@ ConfigSubstitutions ConfigBase::load_from_json(const std::string &file, ForwardC
     return std::move(substitutions_ctxt.substitutions);
 }
 
-// Case-insensitive compare of a JSON key against a fixed ASCII one, without
-// boost::iequals, whose std::locale() takes a lock the whole process shares in the
-// MSVC runtime.
-static bool ascii_iequals(const std::string &key, const char *literal)
-{
-    auto lower = [](char c) { return (c >= 'A' && c <= 'Z') ? char(c - 'A' + 'a') : c; };
-    size_t i = 0;
-    for (; i < key.size() && literal[i] != '\0'; ++ i)
-        if (lower(key[i]) != lower(literal[i]))
-            return false;
-    return i == key.size() && literal[i] == '\0';
-}
-
 int ConfigBase::load_from_json(const std::string &file, ConfigSubstitutionContext& substitution_context, bool load_inherits_to_config, std::map<std::string, std::string>& key_values, std::string& reason)
 {
     json j;
@@ -929,44 +916,44 @@ int ConfigBase::load_from_json(const std::string &file, ConfigSubstitutionContex
         }
         //parse the json elements
         for (auto it = j.begin(); it != j.end(); it++) {
-            if (ascii_iequals(it.key(), BBL_JSON_KEY_VERSION)) {
+            if (boost::iequals(it.key(),BBL_JSON_KEY_VERSION)) {
                 key_values.emplace(BBL_JSON_KEY_VERSION, it.value());
             }
-            else if (ascii_iequals(it.key(), BBL_JSON_KEY_IS_CUSTOM)) {
+            else if (boost::iequals(it.key(), BBL_JSON_KEY_IS_CUSTOM)) {
                 //skip it
             }
-            else if (ascii_iequals(it.key(), BBL_JSON_KEY_NAME)) {
+            else if (boost::iequals(it.key(), BBL_JSON_KEY_NAME)) {
                 key_values.emplace(BBL_JSON_KEY_NAME, it.value());
                 if (it.value() == "project_settings")
                     is_project_settings = true;
             }
-            else if (ascii_iequals(it.key(), BBL_JSON_KEY_URL)) {
+            else if (boost::iequals(it.key(), BBL_JSON_KEY_URL)) {
                 key_values.emplace(BBL_JSON_KEY_URL, it.value());
             }
-            else if (ascii_iequals(it.key(), BBL_JSON_KEY_TYPE)) {
+            else if (boost::iequals(it.key(), BBL_JSON_KEY_TYPE)) {
                 key_values.emplace(BBL_JSON_KEY_TYPE, it.value());
             }
-            else if (ascii_iequals(it.key(), BBL_JSON_KEY_SETTING_ID)) {
+            else if (boost::iequals(it.key(), BBL_JSON_KEY_SETTING_ID)) {
                 key_values.emplace(BBL_JSON_KEY_SETTING_ID, it.value());
             }
-            else if (ascii_iequals(it.key(), BBL_JSON_KEY_FILAMENT_ID)) {
+            else if (boost::iequals(it.key(), BBL_JSON_KEY_FILAMENT_ID)) {
                 key_values.emplace(BBL_JSON_KEY_FILAMENT_ID, it.value());
             }
-            else if (ascii_iequals(it.key(), BBL_JSON_KEY_FROM)) {
+            else if (boost::iequals(it.key(), BBL_JSON_KEY_FROM)) {
                 key_values.emplace(BBL_JSON_KEY_FROM, it.value());
             }
-            else if (ascii_iequals(it.key(), BBL_JSON_KEY_DESCRIPTION)) {
+            else if (boost::iequals(it.key(), BBL_JSON_KEY_DESCRIPTION)) {
                 key_values.emplace(BBL_JSON_KEY_DESCRIPTION, it.value());
             }
-            else if (ascii_iequals(it.key(), BBL_JSON_KEY_INSTANTIATION)) {
+            else if (boost::iequals(it.key(), BBL_JSON_KEY_INSTANTIATION)) {
                 key_values.emplace(BBL_JSON_KEY_INSTANTIATION, it.value());
             }
-            else if (!load_inherits_to_config && ascii_iequals(it.key(), BBL_JSON_KEY_INHERITS)) {
+            else if (!load_inherits_to_config && boost::iequals(it.key(), BBL_JSON_KEY_INHERITS)) {
                 key_values.emplace(BBL_JSON_KEY_INHERITS, it.value());
             }
-            else if (!load_inherits_to_config && ascii_iequals(it.key(), BBL_JSON_KEY_INCLUDES)) {
+            else if (!load_inherits_to_config && boost::iequals(it.key(), BBL_JSON_KEY_INCLUDES)) {
                 key_values.emplace(BBL_JSON_KEY_INCLUDES, it.value().dump());
-            } else if (ascii_iequals(it.key(), ORCA_JSON_KEY_RENAMED_FROM)) {
+            } else if (boost::iequals(it.key(), ORCA_JSON_KEY_RENAMED_FROM)) {
                 key_values.emplace(ORCA_JSON_KEY_RENAMED_FROM, it.value());
             } else {
                 t_config_option_key opt_key = it.key();

src/libslic3r/Fill/Fill.cpp

@@ -9,6 +9,8 @@
 #include "../PrintConfig.hpp"
 #include "../Surface.hpp"
 
+#include <tbb/parallel_for.h>
+
 #include "AABBTreeLines.hpp"
 #include "ExtrusionEntity.hpp"
 #include "Fill.hpp"
@@ -630,24 +632,28 @@ void split_solid_surface(size_t layer_id, const SurfaceFill &fill, ExPolygons &n
     if (!line_based_pattern) {
         const coord_t scaled_spacing = scaled<coord_t>(fill.params.spacing);
 
-        for (const ExPolygon &expolygon : fill.expolygons) {
+        // Each expolygon is split on its own, so they run in parallel and are collected in their original order.
+        std::vector<std::pair<ExPolygons, ExPolygons>> split_parts(fill.expolygons.size()); // normal, narrow
+        tbb::parallel_for(size_t(0), fill.expolygons.size(), [&](size_t idx) {
+            const ExPolygon &expolygon = fill.expolygons[idx];
             Polygons filled_area = to_polygons(expolygon);
 
             // "Core" area: open (erode+dilate) to drop thin features, then clamp back to the original polygon.
             Polygons inner_area  = intersection(filled_area, opening(filled_area, scaled_spacing, scaled_spacing));
 
             if (inner_area.empty()) {
-                narrow_infill.emplace_back(expolygon);
-                continue;
+                split_parts[idx].second.emplace_back(expolygon);
+                return;
             }
 
             ExPolygons inner_ex = union_ex(inner_area);
             ExPolygons expolys{expolygon};
-            ExPolygons narrow_ex = diff_ex(expolys, inner_ex);
-            ExPolygons normal_ex = intersection_ex(expolys, inner_ex);
-
-            append(normal_infill, normal_ex); // normal infill area
-            append(narrow_infill, narrow_ex); // narrow infill area
+            split_parts[idx].second = diff_ex(expolys, inner_ex);         // narrow infill area
+            split_parts[idx].first  = intersection_ex(expolys, inner_ex); // normal infill area
+        });
+        for (auto &[normal_ex, narrow_ex] : split_parts) {
+            append(normal_infill, std::move(normal_ex));
+            append(narrow_infill, std::move(narrow_ex));
         }
 
         return;
@@ -669,7 +675,10 @@ void split_solid_surface(size_t layer_id, const SurfaceFill &fill, ExPolygons &n
     }
     const double aligning_angle = -base_angle + PI;
 
-	for (const ExPolygon &expolygon : fill.expolygons) {
+    // Each expolygon is reconstructed on its own, so they run in parallel and are collected in their original order.
+    std::vector<Polygons> split_reconstructed(fill.expolygons.size());
+    tbb::parallel_for(size_t(0), fill.expolygons.size(), [&](size_t expolygon_idx) {
+        const ExPolygon &expolygon = fill.expolygons[expolygon_idx];
         Polygons filled_area = to_polygons(expolygon);
         polygons_rotate(filled_area, aligning_angle);
         BoundingBox bb = get_extents(filled_area);
@@ -800,8 +809,10 @@ void split_solid_surface(size_t layer_id, const SurfaceFill &fill, ExPolygons &n
             }
         }
 
-        polygons_append(normal_fill_areas, reconstructed_area);
-    }
+        split_reconstructed[expolygon_idx] = std::move(reconstructed_area);
+    });
+    for (Polygons &reconstructed_area : split_reconstructed)
+        polygons_append(normal_fill_areas, std::move(reconstructed_area));
 
     polygons_rotate(normal_fill_areas, -aligning_angle);
 
@@ -1409,7 +1420,15 @@ void Layer::make_fills(FillAdaptive::Octree* adaptive_fill_octree, FillAdaptive:
             // Orca: Reuse the body origin used for bridge anchoring, resetting it for each surface.
             f->set_bounding_box(infill_bounding_box(*this, surface_fill, expoly, bbox));
 
-            f->no_overlap_expolygons = intersection_ex(surface_fill.no_overlap_expolygons, ExPolygons() = {expoly}, ApplySafetyOffset::Yes);
+            // Only the part of the layer-wide no-overlap area under this expolygon matters, so clip it to the
+            // expolygon's box first (padded past the safety offset, which grows the clip side). The result is
+            // identical; the cost is not: a layer split into many small fills, e.g. by colour painting,
+            // otherwise intersects every one of them with the whole layer.
+            BoundingBox no_overlap_bbox = get_extents(expoly);
+            no_overlap_bbox.offset(SCALED_EPSILON);
+            f->no_overlap_expolygons = intersection_ex(
+                ClipperUtils::clip_clipper_polygons_with_subject_bbox(surface_fill.no_overlap_expolygons, no_overlap_bbox),
+                ExPolygons() = {expoly}, ApplySafetyOffset::Yes);
             if (params.symmetric_infill_y_axis) {
                 params.symmetric_y_axis = f->extended_object_bounding_box().center().x();
                 expoly.symmetric_y(params.symmetric_y_axis);

src/libslic3r/Format/OBJ.cpp

@@ -141,7 +141,7 @@ bool load_obj(const char *path, TriangleMesh *meshptr, ObjInfo& obj_info, std::s
                 its.indices.emplace_back(indices[0], indices[1], indices[2]);
                 int  face_index =its.indices.size() - 1;
                 RGBA face_color;
-                auto set_face_color = [&uvs, &data, &mtl_data, &obj_info, &face_color](int face_index, const std::string mtl_name, const std::array<int, 3> &corners) {
+                auto set_face_color = [&uvs, &data, &mtl_data, &obj_info, &face_color](int face_index, const std::string mtl_name) {
                     if (mtl_data.new_mtl_unmap.find(mtl_name) != mtl_data.new_mtl_unmap.end()) {
                         bool is_merge_ka_kd = true;
                         for (size_t n = 0; n < 3; n++) {
@@ -174,7 +174,7 @@ bool load_obj(const char *path, TriangleMesh *meshptr, ObjInfo& obj_info, std::s
                                     return Vec2f::Zero();
                                 return Vec2f(data.textureCoordinates[idx * OBJ_TEXCOORD_LENGTH], data.textureCoordinates[idx * OBJ_TEXCOORD_LENGTH + 1]);
                             };
-                            std::array<Vec2f, 3> uv_array{uv_at(uvs[corners[0]]), uv_at(uvs[corners[1]]), uv_at(uvs[corners[2]])};
+                            std::array<Vec2f, 3> uv_array{uv_at(uvs[0]), uv_at(uvs[1]), uv_at(uvs[2])};
                             obj_info.uvs.emplace_back(uv_array);
                         }
                         obj_info.face_colors.emplace_back(face_color);
@@ -185,27 +185,27 @@ bool load_obj(const char *path, TriangleMesh *meshptr, ObjInfo& obj_info, std::s
                         }
                     }
                 };
-                auto set_face_color_by_mtl = [&data, &set_face_color](int face_index, const std::array<int, 3> &corners) {
+                auto set_face_color_by_mtl = [&data, &set_face_color](int face_index) {
                     if (data.usemtls.size() == 1) {
-                        set_face_color(face_index, data.usemtls[0].name, corners);
+                        set_face_color(face_index, data.usemtls[0].name);
                     } else {
                         for (size_t k = 0; k < data.usemtls.size(); k++) {
                             auto mtl = data.usemtls[k];
                             if (face_index >= mtl.face_start && face_index <= mtl.face_end) {
-                                set_face_color(face_index, data.usemtls[k].name, corners);
+                                set_face_color(face_index, data.usemtls[k].name);
                                 break;
                             }
                         }
                     }
                 };
                 if (exist_mtl) {
-                    set_face_color_by_mtl(face_index, {0, 1, 2});
+                    set_face_color_by_mtl(face_index);
                 }
                 if (cnt == 4) {
                     its.indices.emplace_back(indices[0], indices[2], indices[3]);
                     int face_index = its.indices.size() - 1;
                     if (exist_mtl) {
-                        set_face_color_by_mtl(face_index, {0, 2, 3});
+                        set_face_color_by_mtl(face_index);
                     }
                 }
             }
@@ -217,12 +217,8 @@ bool load_obj(const char *path, TriangleMesh *meshptr, ObjInfo& obj_info, std::s
         message = _L("This OBJ file couldn't be read because it's empty.");
         return false;
     }
-    if (meshptr->volume() < 0) {
+    if (meshptr->volume() < 0)
         meshptr->flip_triangles();
-        // Flipping swaps corners 1 and 2 of every face, so the UVs have to follow.
-        for (std::array<Vec2f, 3> &uv : obj_info.uvs)
-            std::swap(uv[1], uv[2]);
-    }
     // Hand the parsed material table back so callers can build a TexturedMesh from it.
     if (out_mtl)
         *out_mtl = mtl_data;

src/libslic3r/GCode.cpp

@@ -1497,7 +1497,12 @@ static std::vector<Vec2d> get_path_of_change_filament(const Print& print)
         check_add_eol(toolchange_gcode_str);
 
         // SoftFever: set new PA for new filament
-        gcode += gcodegen.set_filament_pressure_advance(new_filament_id);
+        if (gcodegen.config().enable_pressure_advance.get_at(new_filament_id)) {
+            gcode += gcodegen.writer().set_pressure_advance(gcodegen.config().pressure_advance.get_at(new_filament_id));
+            // Orca: Adaptive PA
+            // Reset Adaptive PA processor last PA value
+            gcodegen.m_pa_processor->resetPreviousPA(gcodegen.config().pressure_advance.get_at(new_filament_id));
+        }
 
         // A phony move to the end position at the wipe tower.
         gcodegen.writer().travel_to_xy((end_pos + plate_origin_2d).cast<double>());
@@ -1821,8 +1826,12 @@ static std::vector<Vec2d> get_path_of_change_filament(const Print& print)
         check_add_eol(toolchange_gcode_str);
 
         // SoftFever: set new PA for new filament
-        if (new_extruder_id != -1)
-            gcode += gcodegen.set_filament_pressure_advance(new_extruder_id);
+        if (new_extruder_id != -1 && gcodegen.config().enable_pressure_advance.get_at(new_extruder_id)) {
+            gcode += gcodegen.writer().set_pressure_advance(gcodegen.config().pressure_advance.get_at(new_extruder_id));
+            // Orca: Adaptive PA
+            // Reset Adaptive PA processor last PA value
+            gcodegen.m_pa_processor->resetPreviousPA(gcodegen.config().pressure_advance.get_at(new_extruder_id));
+        }
 
         // A phony move to the end position at the wipe tower.
         gcodegen.writer().travel_to_xy((end_pos + plate_origin_2d).cast<double>());
@@ -3223,7 +3232,7 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
     m_cooling_buffer->set_current_extruder(initial_extruder_id, extruder_id);
 
     // Orca: Initialise AdaptivePA processor filter
-    m_pa_processor = std::make_unique<AdaptivePAProcessor>(*this);
+    m_pa_processor = std::make_unique<AdaptivePAProcessor>(*this, tool_ordering.all_extruders());
 
     // Update output variables after the extruders were initialized.
     m_placeholder_parser_integration.init(m_writer);
@@ -3788,7 +3797,12 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
             }
         }
         // Orca: add missing PA settings for initial filament
-        file.write(set_filament_pressure_advance(initial_non_support_extruder_id));
+        if (m_config.enable_pressure_advance.get_at(initial_non_support_extruder_id)) {
+            file.write(m_writer.set_pressure_advance(m_config.pressure_advance.get_at(initial_non_support_extruder_id)));
+            // Orca: Adaptive PA
+            // Reset Adaptive PA processor last PA value
+            m_pa_processor->resetPreviousPA(m_config.pressure_advance.get_at(initial_non_support_extruder_id));
+        }
     }
 
     //flush FanMover buffer to avoid modifying the start gcode if it's manual.
@@ -4174,28 +4188,6 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
 
     print.throw_if_canceled();
 
-    // Some firmwares only scan the last N lines for the time estimate, so the stats are written
-    // after the config block.
-    if (!is_bbl_printers && !skip_config_block) {
-        file.write("; CONFIG_BLOCK_START\n");
-        std::string full_config;
-        append_full_config(print, full_config);
-        if (!full_config.empty())
-          file.write(full_config);
-
-        // SoftFever: write compatiple info
-        int first_layer_bed_temperature = get_bed_temperature(0, true, print.config().curr_bed_type);
-        file.write_format("; first_layer_bed_temperature = %d\n", first_layer_bed_temperature);
-        file.write_format("; bed_shape = %s\n", print.full_print_config().opt_serialize("printable_area").c_str());
-        file.write_format("; first_layer_temperature = %d\n", print.config().nozzle_temperature_initial_layer.get_at(0));
-        file.write_format("; first_layer_height = %.3f\n", print.config().initial_layer_print_height.value);
-
-          //SF TODO
-//        file.write_format("; variable_layer_height = %d\n", print.ad.adaptive_layer_height ? 1 : 0);
-
-        file.write("; CONFIG_BLOCK_END\n\n");
-    }
-
     // Get filament stats.
     file.write(DoExport::update_print_stats_and_format_filament_stats(
     	// Const inputs
@@ -4222,6 +4214,26 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
                 GCodeProcessor::ETags::Estimated_Printing_Time_Placeholder)
             .c_str());
       file.write("\n");
+      if (!skip_config_block) {
+          file.write("; CONFIG_BLOCK_START\n");
+          std::string full_config;
+          append_full_config(print, full_config);
+          if (!full_config.empty())
+            file.write(full_config);
+
+          // SoftFever: write compatiple info
+          int first_layer_bed_temperature = get_bed_temperature(0, true, print.config().curr_bed_type);
+          file.write_format("; first_layer_bed_temperature = %d\n", first_layer_bed_temperature);
+          file.write_format("; bed_shape = %s\n", print.full_print_config().opt_serialize("printable_area").c_str());
+          file.write_format("; first_layer_temperature = %d\n", print.config().nozzle_temperature_initial_layer.get_at(0));
+          file.write_format("; first_layer_height = %.3f\n", print.config().initial_layer_print_height.value);
+
+            //SF TODO
+//          file.write_format("; variable_layer_height = %d\n", print.ad.adaptive_layer_height ? 1 : 0);
+
+          file.write("; CONFIG_BLOCK_END\n\n");
+      } // !skip_config_block
+
     }
     file.write("\n");
 
@@ -8378,16 +8390,12 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
     
     // Orca: Dynamic PA
     // If adaptive PA is enabled, by default evaluate PA on all extrusion moves
-    // The PA settings and the PA_CHANGE tags use the filament config index of the filament's extruder variant
-    const unsigned int pa_config_index = (unsigned int) get_filament_config_index(m_writer.filament()->id());
-    const bool adaptive_pa = m_config.adaptive_pressure_advance.get_at(pa_config_index) && m_config.enable_pressure_advance.get_at(pa_config_index);
-    const bool adaptive_pa_overhangs = adaptive_pa && m_config.adaptive_pressure_advance_overhangs.get_at(pa_config_index);
     bool is_pa_calib = m_curr_print->calib_mode() == CalibMode::Calib_PA_Line ||
                        m_curr_print->calib_mode() == CalibMode::Calib_PA_Pattern ||
                        m_curr_print->calib_mode() == CalibMode::Calib_PA_Tower;
     bool evaluate_adaptive_pa = false;
     bool role_change = (m_last_extrusion_role != path.role());
-    if (!is_pa_calib && adaptive_pa) {
+    if (!is_pa_calib && FILAMENT_CONFIG(adaptive_pressure_advance) && FILAMENT_CONFIG(enable_pressure_advance)) {
         evaluate_adaptive_pa = true;
         // If we have already emmited a PA change because the m_multi_flow_segment_path_pa_set is set
         // skip re-issuing the PA change tag.
@@ -8470,7 +8478,7 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
     // Post processor flag generation code segment when option to emit only at role changes is enabled
     // Variables published to the post processor:
     // 1) Tag to trigger a PA evaluation (because a role change was identified and the user has requested dynamic PA adjustments)
-    // 2) Current filament config index (to identify the PA model for the currently used filament and its extruder variant)
+    // 2) Current extruder ID (to identify the PA model for the currently used extruder)
     // 3) mm3_per_mm value (to then multiply by the final model print speed after slowdown for cooling is applied)
     // 4) the current acceleration (to pass to the model for evaluation)
     // 5) whether this is an external perimeter (for future use)
@@ -8481,7 +8489,7 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
         if (m_multi_flow_segment_path_average_mm3_per_mm > 0) {
             sprintf(buf, ";%sT%u MM3MM:%g ACCEL:%u BR:%d RC:%d OV:%d\n",
                     GCodeProcessor::reserved_tag(GCodeProcessor::ETags::PA_Change).c_str(),
-                    pa_config_index,
+                    m_writer.filament()->id(),
                     m_multi_flow_segment_path_average_mm3_per_mm,
                     acceleration_i,
                     ((path.role() == erBridgeInfill) ||(path.role() == erOverhangPerimeter)),
@@ -8494,7 +8502,7 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
                                     // to issue a zero flow PA change command for this
             sprintf(buf, ";%sT%u MM3MM:%g ACCEL:%u BR:%d RC:%d OV:%d\n",
                     GCodeProcessor::reserved_tag(GCodeProcessor::ETags::PA_Change).c_str(),
-                    pa_config_index,
+                    m_writer.filament()->id(),
                     _mm3_per_mm,
                     acceleration_i,
                     ((path.role() == erBridgeInfill) ||(path.role() == erOverhangPerimeter)),
@@ -8602,7 +8610,11 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
             // or a flow change, so emit the flag to evaluate PA for the upcomming extrusion
             // Emit tag before new speed is set so the post processor reads the next speed immediately and uses it.
             // Dont emit tag if it has just already been emitted from a role change above
-            if(_mm3_per_mm >0 && adaptive_pa_overhangs && !evaluate_adaptive_pa){
+            if(_mm3_per_mm >0 &&
+               FILAMENT_CONFIG(adaptive_pressure_advance) &&
+               FILAMENT_CONFIG(enable_pressure_advance) &&
+               FILAMENT_CONFIG(adaptive_pressure_advance_overhangs) &&
+               !evaluate_adaptive_pa){
                 if(writer().get_current_speed() > F){ // Ramping down speed - use overhang logic where the minimum speed is used between current and upcoming extrusion
                     if(m_config.gcode_comments){
                         sprintf(buf, "; Ramp down-non-variable\n");
@@ -8610,7 +8622,7 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
                     }
                     sprintf(buf, ";%sT%u MM3MM:%g ACCEL:%u BR:%d RC:%d OV:%d\n",
                             GCodeProcessor::reserved_tag(GCodeProcessor::ETags::PA_Change).c_str(),
-                            pa_config_index,
+                            m_writer.filament()->id(),
                             _mm3_per_mm,
                             acceleration_i,
                             ((path.role() == erBridgeInfill) ||(path.role() == erOverhangPerimeter)),
@@ -8625,7 +8637,7 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
                     }
                     sprintf(buf, ";%sT%u MM3MM:%g ACCEL:%u BR:%d RC:%d OV:%d\n",
                             GCodeProcessor::reserved_tag(GCodeProcessor::ETags::PA_Change).c_str(),
-                            pa_config_index,
+                            m_writer.filament()->id(),
                             _mm3_per_mm,
                             acceleration_i,
                             ((path.role() == erBridgeInfill) ||(path.role() == erOverhangPerimeter)),
@@ -8831,7 +8843,10 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
                 // ORCA: Adaptive PA code segment when adjusting PA within the same feature
                 // There is a speed change or flow change so emit the flag to evaluate PA for the upcomming extrusion
                 // Emit tag before new speed is set so the post processor reads the next speed immediately and uses it.
-                if(_mm3_per_mm >0 && adaptive_pa_overhangs){
+                if(_mm3_per_mm >0   &&
+                   EXTRUDER_CONFIG(adaptive_pressure_advance) &&
+                   EXTRUDER_CONFIG(enable_pressure_advance) &&
+                   EXTRUDER_CONFIG(adaptive_pressure_advance_overhangs) ){
                     if(last_set_speed > new_speed){ // Ramping down speed - use overhang logic where the minimum speed is used between current and upcoming extrusion
                         if(m_config.gcode_comments) {
                             sprintf(buf, "; Ramp up-variable\n");
@@ -8839,7 +8854,7 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
                         }
                         sprintf(buf, ";%sT%u MM3MM:%g ACCEL:%u BR:%d RC:%d OV:%d\n",
                                 GCodeProcessor::reserved_tag(GCodeProcessor::ETags::PA_Change).c_str(),
-                                pa_config_index,
+                                m_writer.filament()->id(),
                                 _mm3_per_mm,
                                 acceleration_i,
                                 ((path.role() == erBridgeInfill) ||(path.role() == erOverhangPerimeter)),
@@ -8854,7 +8869,7 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
                         }
                         sprintf(buf, ";%sT%u MM3MM:%g ACCEL:%u BR:%d RC:%d OV:%d\n",
                                 GCodeProcessor::reserved_tag(GCodeProcessor::ETags::PA_Change).c_str(),
-                                pa_config_index,
+                                m_writer.filament()->id(),
                                 _mm3_per_mm,
                                 acceleration_i,
                                 ((path.role() == erBridgeInfill) ||(path.role() == erOverhangPerimeter)),
@@ -9407,29 +9422,33 @@ void GCode::update_placeholder_parser_with_variant_params()
     if (num_filaments == 0)
         return;
 
-    // Helper: remap config arrays from variant index space to filament_id index space.
+    // Helpers: remap config arrays from variant index space to filament_id index space.
     // After remapping, gcode templates can use param[filament_id] directly.
-    auto remap_by_filament = [&](const auto &src) {
-        std::decay_t<decltype(src.values)> dst(num_filaments);
+    auto remap_floats_by_filament = [&](const auto &src) {
+        std::vector<double> dst(num_filaments);
+        for (size_t i = 0; i < num_filaments; ++i)
+            dst[i] = src.get_at(get_filament_config_index(i));
+        return dst;
+    };
+    auto remap_ints_by_filament = [&](const auto &src) {
+        std::vector<int> dst(num_filaments);
         for (size_t i = 0; i < num_filaments; ++i)
             dst[i] = src.get_at(get_filament_config_index(i));
         return dst;
     };
 
     // --- filament_options_with_variant: gcode indexes by filament_id ---
-    this->placeholder_parser().set("filament_max_volumetric_speed",       new ConfigOptionFloats(remap_by_filament(m_config.filament_max_volumetric_speed)));
-    this->placeholder_parser().set("filament_pre_cooling_temperature",    new ConfigOptionInts(remap_by_filament(m_config.filament_pre_cooling_temperature)));
-    this->placeholder_parser().set("filament_pre_cooling_temperature_nc", new ConfigOptionInts(remap_by_filament(m_config.filament_pre_cooling_temperature_nc)));
-    this->placeholder_parser().set("filament_cooling_before_tower",       new ConfigOptionFloats(remap_by_filament(m_config.filament_cooling_before_tower)));
-    this->placeholder_parser().set("nozzle_temperature_initial_layer",    new ConfigOptionInts(remap_by_filament(m_config.nozzle_temperature_initial_layer)));
-    this->placeholder_parser().set("nozzle_temperature",                  new ConfigOptionInts(remap_by_filament(m_config.nozzle_temperature)));
+    this->placeholder_parser().set("filament_max_volumetric_speed",       new ConfigOptionFloats(remap_floats_by_filament(m_config.filament_max_volumetric_speed)));
+    this->placeholder_parser().set("filament_pre_cooling_temperature",    new ConfigOptionInts(remap_ints_by_filament(m_config.filament_pre_cooling_temperature)));
+    this->placeholder_parser().set("filament_pre_cooling_temperature_nc", new ConfigOptionInts(remap_ints_by_filament(m_config.filament_pre_cooling_temperature_nc)));
+    this->placeholder_parser().set("filament_cooling_before_tower",       new ConfigOptionFloats(remap_floats_by_filament(m_config.filament_cooling_before_tower)));
+    this->placeholder_parser().set("nozzle_temperature_initial_layer",    new ConfigOptionInts(remap_ints_by_filament(m_config.nozzle_temperature_initial_layer)));
+    this->placeholder_parser().set("nozzle_temperature",                  new ConfigOptionInts(remap_ints_by_filament(m_config.nozzle_temperature)));
     // first_layer_temperature is a legacy alias of nozzle_temperature_initial_layer
-    this->placeholder_parser().set("first_layer_temperature",             new ConfigOptionInts(remap_by_filament(m_config.nozzle_temperature_initial_layer)));
-    this->placeholder_parser().set("pressure_advance",                    new ConfigOptionFloats(remap_by_filament(m_config.pressure_advance)));
-    this->placeholder_parser().set("enable_pressure_advance",             new ConfigOptionBools(remap_by_filament(m_config.enable_pressure_advance)));
+    this->placeholder_parser().set("first_layer_temperature",             new ConfigOptionInts(remap_ints_by_filament(m_config.nozzle_temperature_initial_layer)));
 
     // --- printer_options_with_variant_1: in m_config these are already merged as filament-indexed ---
-    this->placeholder_parser().set("retraction_distances_when_cut",       new ConfigOptionFloats(remap_by_filament(m_config.retraction_distances_when_cut)));
+    this->placeholder_parser().set("retraction_distances_when_cut",       new ConfigOptionFloats(remap_floats_by_filament(m_config.retraction_distances_when_cut)));
     // hotend_cooling_rate / hotend_heating_rate: gcode uses [filament_map[x]-1] (extruder_id), no remap needed
 
     // --- filament_map: per-layer dynamic, sync from m_config to placeholder_parser ---
@@ -9439,9 +9458,9 @@ void GCode::update_placeholder_parser_with_variant_params()
     {
         // Fast purge mode uses filament_flush_temp_fast; Default is inert.
         bool use_fast_flush = m_config.prime_volume_mode == PrimeVolumeMode::pvmFast;
-        auto flush_v_speed  = remap_by_filament(m_config.filament_flush_volumetric_speed);
-        auto filament_max_v = remap_by_filament(m_config.filament_max_volumetric_speed);
-        auto flush_temps    = remap_by_filament(use_fast_flush ? m_config.filament_flush_temp_fast
+        auto flush_v_speed  = remap_floats_by_filament(m_config.filament_flush_volumetric_speed);
+        auto filament_max_v = remap_floats_by_filament(m_config.filament_max_volumetric_speed);
+        auto flush_temps    = remap_ints_by_filament(use_fast_flush ? m_config.filament_flush_temp_fast
                                                                     : m_config.filament_flush_temp);
         for (size_t i = 0; i < num_filaments; ++i) {
             if (flush_v_speed[i] == 0)
@@ -9494,7 +9513,12 @@ std::string GCode::set_extruder(unsigned int new_filament_id, double print_z, bo
             gcode += this->placeholder_parser_process("filament_start_gcode", filament_start_gcode, new_filament_id, &config);
             check_add_eol(gcode);
         }
-        gcode += set_filament_pressure_advance(new_filament_id);
+        if (m_config.enable_pressure_advance.get_at(new_filament_id)) {
+            gcode += m_writer.set_pressure_advance(m_config.pressure_advance.get_at(new_filament_id));
+            // Orca: Adaptive PA
+            // Reset Adaptive PA processor last PA value
+            m_pa_processor->resetPreviousPA(m_config.pressure_advance.get_at(new_filament_id));
+        }
 
         gcode += m_writer.toolchange(new_filament_id, new_extruder_id);
         if (Extruder *fil = m_writer.filament())
@@ -9885,24 +9909,18 @@ std::string GCode::set_extruder(unsigned int new_filament_id, double print_z, bo
     if (m_ooze_prevention.enable && !defer_temp_wait)
         gcode += m_ooze_prevention.post_toolchange(*this);
 
-    gcode += set_filament_pressure_advance(new_filament_id);
+    if (m_config.enable_pressure_advance.get_at(new_filament_id)) {
+        gcode += m_writer.set_pressure_advance(m_config.pressure_advance.get_at(new_filament_id));
+        // Orca: Adaptive PA
+        // Reset Adaptive PA processor last PA value
+        m_pa_processor->resetPreviousPA(m_config.pressure_advance.get_at(new_filament_id));
+    }
     //Orca: tool changer or IDEX's firmware may change Z position, so we set it to unknown/undefined
     m_last_pos_defined = false;
 
     return gcode;
 }
 
-std::string GCode::set_filament_pressure_advance(unsigned int filament_id)
-{
-    const size_t fi = get_filament_config_index(filament_id);
-    if (!m_config.enable_pressure_advance.get_at(fi))
-        return {};
-    // Orca: Adaptive PA
-    // Reset Adaptive PA processor last PA value
-    m_pa_processor->resetPreviousPA(m_config.pressure_advance.get_at(fi));
-    return m_writer.set_pressure_advance(m_config.pressure_advance.get_at(fi));
-}
-
 inline std::string polygon_to_string(const Polygon &polygon, Print *print, bool is_print_space = false) {
     std::ostringstream gcode;
     gcode << "[";

src/libslic3r/GCode.hpp

@@ -281,8 +281,6 @@ public:
     // extra_retract forwards a PETG pre-extrusion over-extrusion; default 0 -> identical to the plain deretract.
     std::string     unretract(float extra_retract = 0.f) { return m_writer.unlift() + m_writer.unretract(extra_retract); }
     std::string     set_extruder(unsigned int extruder_id, double print_z, bool by_object=false, int toolchange_temp_override = -1, bool defer_temp_wait = false);
-    // Sets the pressure advance of the filament's extruder variant, if enabled for it.
-    std::string     set_filament_pressure_advance(unsigned int filament_id);
     bool is_BBL_Printer();
     WipeTowerType wipe_tower_type();
 

src/libslic3r/GCode/AdaptivePAProcessor.cpp

@@ -21,31 +21,39 @@ namespace Slic3r {
  *
  * @param gcodegen A reference to the GCode object that generates the G-code.
  */
-AdaptivePAProcessor::AdaptivePAProcessor(GCode &gcodegen)
+AdaptivePAProcessor::AdaptivePAProcessor(GCode &gcodegen, const std::vector<unsigned int> &tools_used)
     : m_gcodegen(gcodegen),
       m_config(gcodegen.config()),
       m_last_predicted_pa(0.0),
       m_max_next_feedrate(0.0),
       m_next_feedrate(0.0),
       m_current_feedrate(0.0),
-      m_last_config_index(-1),
+      m_last_extruder_id(-1),
       m_pa_change_pattern(R"(; PA_CHANGE:T(\d+) MM3MM:([0-9]*\.[0-9]+) ACCEL:(\d+) BR:(\d+) RC:(\d+) OV:(\d+))"),
       m_g1_f_pattern(R"(G1 F([0-9]+))")
 {
+    // Constructor body can be used for further initialization if necessary
+    for (unsigned int tool : tools_used) {
+        // Only enable model for the tool if both PA and adaptive PA options are enabled
+        if(m_config.adaptive_pressure_advance.get_at(tool) && m_config.enable_pressure_advance.get_at(tool)){
+            auto interpolator = std::make_unique<AdaptivePAInterpolator>();
+            // Get calibration values from extruder
+            std::string pa_calibration_values = m_config.adaptive_pressure_advance_model.get_at(tool);
+            // Setup the model and store it in the tool-interpolation model map
+            interpolator->parseAndSetData(pa_calibration_values);
+            m_AdaptivePAInterpolators[tool] = std::move(interpolator);
+        }
+    }
 }
 
-// Method to get the interpolator for a specific filament config index.
-// The model is built the first time an index is requested, as the indices in use depend on
-// the extruder variant each filament prints with.
-AdaptivePAInterpolator* AdaptivePAProcessor::getInterpolator(unsigned int config_index) {
-    auto [it, inserted] = m_AdaptivePAInterpolators.try_emplace(config_index);
-    // Only enable model for the index if both PA and adaptive PA options are enabled
-    if (inserted && m_config.adaptive_pressure_advance.get_at(config_index) && m_config.enable_pressure_advance.get_at(config_index)) {
-        it->second = std::make_unique<AdaptivePAInterpolator>();
-        it->second->parseAndSetData(m_config.adaptive_pressure_advance_model.get_at(config_index));
-    }
+// Method to get the interpolator for a specific tool ID
+AdaptivePAInterpolator* AdaptivePAProcessor::getInterpolator(unsigned int tool_id) {
+    auto it = m_AdaptivePAInterpolators.find(tool_id);
+    if (it != m_AdaptivePAInterpolators.end()) {
         return it->second.get();
     }
+    return nullptr;  // Handle the case where the tool_id was not found
+}
 
 /**
  * @brief Processes a layer of G-code and applies adaptive pressure advance.
@@ -100,17 +108,16 @@ std::string AdaptivePAProcessor::process_layer(std::string &&gcode) {
         // the PA for that material is set. As no tag below will be found for this extruder, the original PA is retained.
         if (line.find("; PA_CHANGE") == 0) { // prune lines quickly before running regex check as regex is more expensive to run
             if (std::regex_search(line, m_match, m_pa_change_pattern)) {
-                // The tag carries the filament config index, which selects the PA settings of the filament's extruder variant
-                int config_index = std::stoi(m_match[1].str());
+                int extruder_id = std::stoi(m_match[1].str());
                 mm3mm_value = std::stod(m_match[2].str());
                 accel_value = std::stod(m_match[3].str());
                 int isBridge = std::stoi(m_match[4].str());
                 int roleChange = std::stoi(m_match[5].str());
                 int isOverhang = std::stoi(m_match[6].str());
                 
-                // Check if the filament config index has changed
-                bool config_index_changed = (config_index != m_last_config_index);
-                m_last_config_index = config_index;
+                // Check if the extruder ID has changed
+                bool extruder_changed = (extruder_id != m_last_extruder_id);
+                m_last_extruder_id = extruder_id;
                 
                 // Save the PA_CHANGE line to output later after finding feedrate
                 pa_change_line = line;
@@ -205,23 +212,23 @@ std::string AdaptivePAProcessor::process_layer(std::string &&gcode) {
                 
                 // Calculate the predicted PA using the upcomming feature maximum feedrate
                 // Get the interpolator for the active tool
-                AdaptivePAInterpolator* interpolator = getInterpolator(m_last_config_index);
+                AdaptivePAInterpolator* interpolator = getInterpolator(m_last_extruder_id);
                 
                 double predicted_pa = 0;
                 double adaptive_PA_speed = 0;
             
                 if(!interpolator){ // Tool not found in the interpolator map
                     // Tool not found in the PA interpolator to tool map
-                    predicted_pa = m_config.enable_pressure_advance.get_at(m_last_config_index) ? m_config.pressure_advance.get_at(m_last_config_index) : 0;
+                    predicted_pa = m_config.enable_pressure_advance.get_at(m_last_extruder_id) ? m_config.pressure_advance.get_at(m_last_extruder_id) : 0;
                     if(m_config.gcode_comments) output << "; APA: Tool doesnt have APA enabled\n";
-                } else if (!interpolator->isInitialised() || (!m_config.adaptive_pressure_advance.get_at(m_last_config_index)) )
+                } else if (!interpolator->isInitialised() || (!m_config.adaptive_pressure_advance.get_at(m_last_extruder_id)) )
                     // Check if the model is not initialised by the constructor for the active extruder
                     // Also check that adaptive PA is enabled for that extruder. This should not be needed
                     // as the PA change flag should not be set upstream (in the GCode.cpp file) if adaptive PA is disabled
                     // however check for robustness sake.
                 {
                     // Model failed or adaptive pressure advance not enabled - use default value from m_config
-                    predicted_pa = m_config.enable_pressure_advance.get_at(m_last_config_index) ? m_config.pressure_advance.get_at(m_last_config_index) : 0;
+                    predicted_pa = m_config.enable_pressure_advance.get_at(m_last_extruder_id) ? m_config.pressure_advance.get_at(m_last_extruder_id) : 0;
                     if(m_config.gcode_comments) output << "; APA: Interpolator setup failed, using default pressure advance\n";
                 } else { // Model setup succeeded
                     // Proceed to identify the print speed to use to calculate the adaptive PA value
@@ -242,18 +249,18 @@ std::string AdaptivePAProcessor::process_layer(std::string &&gcode) {
                     predicted_pa = (*interpolator)(mm3mm_value * adaptive_PA_speed, accel_value);
                     
                     // This is a bridge, use the dedicated PA setting.
-                    if(isBridge && m_config.adaptive_pressure_advance_bridges.get_at(m_last_config_index) > EPSILON)
-                        predicted_pa = m_config.adaptive_pressure_advance_bridges.get_at(m_last_config_index);
+                    if(isBridge && m_config.adaptive_pressure_advance_bridges.get_at(m_last_extruder_id) > EPSILON)
+                        predicted_pa = m_config.adaptive_pressure_advance_bridges.get_at(m_last_extruder_id);
                     
                     if (predicted_pa < 0) { // If extrapolation fails, fall back to the default PA for the extruder.
-                        predicted_pa = m_config.enable_pressure_advance.get_at(m_last_config_index) ? m_config.pressure_advance.get_at(m_last_config_index) : 0;
+                        predicted_pa = m_config.enable_pressure_advance.get_at(m_last_extruder_id) ? m_config.pressure_advance.get_at(m_last_extruder_id) : 0;
                         if(m_config.gcode_comments) output << "; APA: Interpolation failed, using fallback pressure advance value\n";
                     }
                 }
                 if(m_config.gcode_comments) {
                     // Output debug GCode comments
                     output << pa_change_line << '\n'; // Output PA change command tag
-                    if(isBridge && m_config.adaptive_pressure_advance_bridges.get_at(m_last_config_index) > EPSILON)
+                    if(isBridge && m_config.adaptive_pressure_advance_bridges.get_at(m_last_extruder_id) > EPSILON)
                         output << "; APA Model Override (bridge)\n";
                     output << "; APA Current Speed: " << std::to_string(m_current_feedrate) << "\n";
                     output << "; APA Next Speed: " << std::to_string(m_next_feedrate) << "\n";
@@ -262,7 +269,7 @@ std::string AdaptivePAProcessor::process_layer(std::string &&gcode) {
                     output << "; APA Flow rate: " << std::to_string(mm3mm_value * m_max_next_feedrate) << "\n";
                     output << "; APA Prev PA: " << std::to_string(m_last_predicted_pa) << " New PA: " << std::to_string(predicted_pa) << "\n"; 
                 }
-                if (config_index_changed || std::fabs(predicted_pa - m_last_predicted_pa) > EPSILON) {
+                if (extruder_changed || std::fabs(predicted_pa - m_last_predicted_pa) > EPSILON) {
                     output << m_gcodegen.writer().set_pressure_advance(predicted_pa); // Use m_writer to set pressure advance
                     m_last_predicted_pa = predicted_pa; // Update the last predicted PA value
                 }

src/libslic3r/GCode/AdaptivePAProcessor.hpp

@@ -11,6 +11,7 @@
 #include <regex>
 #include <memory>
 #include <map>
+#include <vector>
 #include "AdaptivePAInterpolator.hpp"
 
 namespace Slic3r {
@@ -32,7 +33,7 @@ public:
      *
      * @param gcodegen A reference to the GCode object that generates the G-code.
      */
-    AdaptivePAProcessor(GCode &gcodegen);
+    AdaptivePAProcessor(GCode &gcodegen, const std::vector<unsigned int> &tools_used);
     
     /**
      * @brief Processes a layer of G-code and applies adaptive pressure advance.
@@ -69,25 +70,28 @@ public:
     
 private:
     GCode &m_gcodegen; ///< Reference to the GCode object.
-    std::unordered_map<unsigned int, std::unique_ptr<AdaptivePAInterpolator>> m_AdaptivePAInterpolators; ///< Map between Interpolator objects and filament config indices (null when adaptive PA is off)
+    std::unordered_map<unsigned int, std::unique_ptr<AdaptivePAInterpolator>> m_AdaptivePAInterpolators; ///< Map between Interpolator objects and tool ID's
     const PrintConfig &m_config; ///< Reference to the print configuration.
     double m_last_predicted_pa; ///< Last predicted pressure advance value.
     double m_max_next_feedrate; ///< Maximum feed rate (speed) for the upcomming island. If no speed is found, the previous island speed is used.
     double m_next_feedrate; ///< First feed rate (speed) for the upcomming island.
     double m_current_feedrate; ///< Current, latest feedrate.
-    int m_last_config_index; ///< Filament config index of the last PA_CHANGE tag.
+    int m_last_extruder_id; ///< Last used extruder ID.
 
     std::regex m_pa_change_pattern; ///< Regular expression to detect PA_CHANGE pattern.
     std::regex m_g1_f_pattern; ///< Regular expression to detect G1 F pattern.
     std::smatch m_match; ///< Match results for regular expressions.
 
     /**
-     * @brief Get the PA interpolator attached to the specified filament config index.
+     * @brief Get the PA interpolator attached to the specified tool ID.
      *
-     * @param config_index The filament config index (one per filament and extruder variant) for which the PA interpolation model is to be returned.
-     * @return The Adaptive PA Interpolator object corresponding to that index, or nullptr when adaptive PA is off for it.
+     * This method manually sets the adaptive PA internally held value.
+     * Call this when changing tools or in any other case where the internally assumed last PA value may be incorrect
+     *
+     * @param An integer with the tool ID for which the PA interpolation model is to be returned.
+     * @return The Adaptive PA Interpolator object corresponding to that tool.
      */
-    AdaptivePAInterpolator* getInterpolator(unsigned int config_index);
+    AdaptivePAInterpolator* getInterpolator(unsigned int tool_id);
 };
 
 } // namespace Slic3r

src/libslic3r/GCode/OrderingStrategies.cpp

@@ -10,6 +10,7 @@
 #include <limits>
 #include <numeric>
 #include <unordered_map>
+#include <unordered_set>
 #include <utility>
 #include <vector>
 
@@ -134,15 +135,79 @@ bool tsp_remove_crossings(std::vector<size_t>& path, const Points& centers)
         return {std::numeric_limits<size_t>::max(), std::numeric_limits<size_t>::max()};
     };
 
+    // For many islands, the same scan with the edges binned in a uniform grid over their boxes, so each edge is only tested against the edges sharing a
+    // cell with it - two edges whose boxes overlap always do. It returns the same crossing as the all-pairs scan
+    // (smallest i, then smallest j), so the result is unchanged. The all-pairs scan is quadratic in the edge count and
+    // runs again after every reversal; rebuilding the grid costs more than it saves below the threshold.
+    constexpr size_t grid_min_size = 500;
+    BoundingBox extent;
+    for (size_t idx : path)
+        extent.merge(centers[idx]);
+    const int     grid_n = std::clamp(int(std::sqrt(double(pn))), 1, 256);
+    const coord_t cell_w = std::max<coord_t>(1, (extent.max.x() - extent.min.x()) / grid_n + 1);
+    const coord_t cell_h = std::max<coord_t>(1, (extent.max.y() - extent.min.y()) / grid_n + 1);
+    const auto    for_cells = [&](const Point& a, const Point& b, auto&& fn) {
+        const int x0 = int((std::min(a.x(), b.x()) - extent.min.x()) / cell_w), x1 = int((std::max(a.x(), b.x()) - extent.min.x()) / cell_w);
+        const int y0 = int((std::min(a.y(), b.y()) - extent.min.y()) / cell_h), y1 = int((std::max(a.y(), b.y()) - extent.min.y()) / cell_h);
+        for (int y = y0; y <= y1; ++y)
+            for (int x = x0; x <= x1; ++x)
+                fn(y * grid_n + x);
+    };
+    std::vector<std::vector<size_t>> edge_cells(size_t(grid_n) * grid_n);
+
+    auto find_crossing_grid = [&]() -> std::pair<size_t, size_t> {
+        for (std::vector<size_t>& cell : edge_cells)
+            cell.clear();
+        for (size_t j = 0; j < n_edges; ++j)
+            for_cells(centers[path[j]], centers[path[(j + 1) % pn]], [&](int cell) { edge_cells[cell].emplace_back(j); });
+
+        for (size_t i = 0; i < n_edges; ++i) {
+            const Point& ai = centers[path[i]];
+            const Point& bi = centers[path[(i + 1) % pn]];
+
+            size_t first_j = std::numeric_limits<size_t>::max();
+            for_cells(ai, bi, [&](int cell) {
+                for (size_t j : edge_cells[cell]) {
+                    if (j < i + 2 || j >= first_j) continue;
+                    // Skip the (0, pn-1) pair: edges (0,1) and (pn-1,0) share node 0.
+                    if (i == 0 && j == pn - 1) continue;
+
+                    const Point& aj = centers[path[j]];
+                    const Point& bj = centers[path[(j + 1) % pn]];
+
+                    if (!bboxes_overlap(ai, bi, aj, bj)) continue;
+                    if (Geometry::segments_intersect(ai, bi, aj, bj))
+                        first_j = j;
+                }
+            });
+            if (first_j != std::numeric_limits<size_t>::max())
+                return {i, first_j};
+        }
+        return {std::numeric_limits<size_t>::max(), std::numeric_limits<size_t>::max()};
+    };
+
     // Process crossings one at a time: find first, reverse it, restart scan.
     // Cap iterations to prevent infinite loops on collinear/overlapping segments.
     int max_iters = static_cast<int>(pn * pn);
     bool improved = false;
+    // Reversing between two segments that only touch or overlap along a line need not remove the intersection, so on
+    // islands laid out on a regular grid (a tiled texture, an array of parts) the loop can cycle through the same
+    // orderings until the pn * pn cap. Stop as soon as an ordering repeats; up to that point this is the same loop.
+    std::unordered_set<uint64_t> seen_paths;
+    const auto path_hash = [&path]() {
+        uint64_t h = 1469598103934665603ull; // FNV-1a
+        for (size_t idx : path)
+            h = (h ^ uint64_t(idx)) * 1099511628211ull;
+        return h;
+    };
+    seen_paths.insert(path_hash());
     while (max_iters-- > 0) {
-        auto [ci, cj] = find_crossing();
+        auto [ci, cj] = pn >= grid_min_size ? find_crossing_grid() : find_crossing();
         if (ci == std::numeric_limits<size_t>::max()) break;
         improved = true;
         std::reverse(path.begin() + ci + 1, path.begin() + cj + 1);
+        if (!seen_paths.insert(path_hash()).second)
+            break;
     }
     return improved;
 }

src/libslic3r/GCode/SeamPlacer.cpp

@@ -8,6 +8,7 @@
 #include <boost/log/trivial.hpp>
 #include <random>
 #include <algorithm>
+#include <limits>
 #include <queue>
 #include <unordered_map>
 
@@ -1178,21 +1179,21 @@ std::optional<std::pair<size_t, size_t>> SeamPlacer::find_next_seam_in_layer(
     const size_t layer_idx, const float max_distance,
     const SeamPlacerImpl::SeamComparator &comparator) const {
   using namespace SeamPlacerImpl;
-  std::vector<size_t> nearby_points_indices = find_nearby_points(*layers[layer_idx].points_tree, projected_position,
-                                                                 max_distance);
-
-  if (nearby_points_indices.empty()) {
-    return {};
+  // Find the best nearby point and the nearest one. A layer of a fine relief has tens of thousands of candidates within
+  // the radius, so they are looked at as the search finds them rather than collected into a vector first.
+  constexpr size_t none = std::numeric_limits<size_t>::max();
+  size_t best_nearby_point_index = none;
+  size_t nearest_point_index = none;
+  visit_nearby_points(*layers[layer_idx].points_tree, projected_position, max_distance,
+                      [&layers, &comparator, &projected_position, layer_idx, &best_nearby_point_index, &nearest_point_index]
+                      (size_t nearby_point_index) {
+    if (best_nearby_point_index == none) {
+      // The first point found starts both, as the first of the collected ones did.
+      best_nearby_point_index = nearest_point_index = nearby_point_index;
     }
-
-  size_t best_nearby_point_index = nearby_points_indices[0];
-  size_t nearest_point_index = nearby_points_indices[0];
-
-  // Now find best nearby point, nearest point, and corresponding indices
-  for (const size_t &nearby_point_index : nearby_points_indices) {
     const SeamCandidate &point = layers[layer_idx].points[nearby_point_index];
     if (point.perimeter.finalized) {
-      continue; // skip over finalized perimeters, try to find some that is not finalized
+      return; // skip over finalized perimeters, try to find some that is not finalized
     }
     if (comparator.is_first_better(point, layers[layer_idx].points[best_nearby_point_index],
                                    projected_position.head<2>())
@@ -1204,6 +1205,10 @@ std::optional<std::pair<size_t, size_t>> SeamPlacer::find_next_seam_in_layer(
         || layers[layer_idx].points[nearest_point_index].perimeter.finalized) {
       nearest_point_index = nearby_point_index;
     }
+  });
+
+  if (best_nearby_point_index == none) {
+    return {};
   }
 
   const SeamCandidate &best_nearby_point = layers[layer_idx].points[best_nearby_point_index];

src/libslic3r/KDTreeIndirect.hpp

@@ -313,6 +313,36 @@ std::vector<size_t> find_nearby_points(const KDTreeIndirectType &kdtree, const P
     return visitor.result;
 }
 
+// Visits the points within max_distance of center, in the order find_nearby_points() would collect them, and hands
+// each of them to `visitor_fn` instead of returning them all: a search over a dense set spends more on collecting the
+// points into a vector than on the search itself, and its caller usually keeps only a few of them.
+template<typename KDTreeIndirectType, typename PointType, typename VisitorFn>
+void visit_nearby_points(const KDTreeIndirectType &kdtree, const PointType &center,
+                         const typename KDTreeIndirectType::CoordType &max_distance, VisitorFn visitor_fn)
+{
+    using CoordType = typename KDTreeIndirectType::CoordType;
+
+    struct Visitor {
+        const KDTreeIndirectType &kdtree;
+        const PointType           center;
+        const CoordType           max_distance_squared;
+        VisitorFn                 visitor_fn;
+
+        unsigned int operator()(size_t idx, size_t dimension) {
+            auto dist = CoordType(0);
+            for (size_t i = 0; i < KDTreeIndirectType::NumDimensions; ++i) {
+                CoordType d = center[i] - kdtree.coordinate(idx, i);
+                dist += d * d;
+            }
+            if (dist < max_distance_squared)
+                visitor_fn(idx);
+            return kdtree.descent_mask(center[dimension], max_distance_squared, idx, dimension);
+        }
+    } visitor { kdtree, center, max_distance * max_distance, visitor_fn };
+
+    kdtree.visit(visitor);
+}
+
 template<typename KDTreeIndirectType, typename PointType>
 std::vector<size_t> find_nearby_points(const KDTreeIndirectType &kdtree, const PointType &center,
                                        const typename KDTreeIndirectType::CoordType& max_distance)

src/libslic3r/LayerRegion.cpp

@@ -72,10 +72,11 @@ void LayerRegion::slices_to_fill_surfaces_clipped()
         by_surface[size_t(surface.surface_type)].emplace_back(&surface);
     // Trim surfaces by the fill_boundaries.
     this->fill_surfaces.surfaces.clear();
+    const Polygons fill_boundaries = to_polygons(this->fill_expolygons);
     for (size_t surface_type = 0; surface_type < size_t(stCount); ++ surface_type) {
         const SurfacesPtr &this_surfaces = by_surface[surface_type];
         if (! this_surfaces.empty())
-            this->fill_surfaces.append(intersection_ex(this_surfaces, this->fill_expolygons), SurfaceType(surface_type));
+            this->fill_surfaces.append(intersection_ex_by_piece(to_expolygons(this_surfaces), fill_boundaries), SurfaceType(surface_type));
     }
 }
 

src/libslic3r/LocalesUtils.cpp

@@ -13,19 +13,8 @@
 namespace Slic3r {
 
 
-// How many setters this thread holds, so the ones nested in another can skip
-// setlocale, which takes a lock the whole process shares on Windows.
-static thread_local int s_numeric_locale_depth = 0;
-
 CNumericLocalesSetter::CNumericLocalesSetter()
 {
-    // Nested in another setter on this thread, whose "C" the separator check
-    // confirms is still set.
-    if (s_numeric_locale_depth > 0 && is_decimal_separator_point()) {
-        m_nested = true;
-        ++ s_numeric_locale_depth;
-        return;
-    }
 #ifdef _WIN32
     _configthreadlocale(_ENABLE_PER_THREAD_LOCALE);
     m_orig_numeric_locale = std::setlocale(LC_NUMERIC, nullptr);
@@ -40,17 +29,12 @@ CNumericLocalesSetter::CNumericLocalesSetter()
     m_new_locale = newlocale(LC_NUMERIC_MASK, "C", m_new_locale);
     uselocale(m_new_locale);
 #endif
-    // Counted last, since the destructor does not run for a constructor that throws.
-    ++ s_numeric_locale_depth;
 }
 
 
 
 CNumericLocalesSetter::~CNumericLocalesSetter()
 {
-    -- s_numeric_locale_depth;
-    if (m_nested)
-        return;
 #ifdef _WIN32
     std::setlocale(LC_NUMERIC, m_orig_numeric_locale.data());
 #else

src/libslic3r/LocalesUtils.hpp

@@ -19,13 +19,8 @@ class CNumericLocalesSetter {
 public:
     CNumericLocalesSetter();
     ~CNumericLocalesSetter();
-    // A copy would restore the locale twice, and count down once more than up.
-    CNumericLocalesSetter(const CNumericLocalesSetter&) = delete;
-    CNumericLocalesSetter& operator=(const CNumericLocalesSetter&) = delete;
 
 private:
-    // Inside another setter on this thread, which does the setting and restoring.
-    bool m_nested { false };
 #ifdef _WIN32
     std::string m_orig_numeric_locale;
 #else

src/libslic3r/MultiMaterialSegmentation.cpp

@@ -8,6 +8,7 @@
 #include "MutablePolygon.hpp"
 #include "format.hpp"
 
+#include <numeric>
 #include <utility>
 #include <unordered_set>
 
@@ -1311,10 +1312,15 @@ static inline std::vector<std::vector<ExPolygons>> segmentation_top_and_bottom_l
     }
 #endif // MM_SEGMENTATION_DEBUG_TOP_BOTTOM
 
-    // When the upper surface of an object is occluded, it should no longer be considered the upper surface
+    // When the upper surface of an object is occluded, it should no longer be considered the upper surface.
+    // Every (colour, layer) pair is trimmed on its own, so they all run at once: the painted faces of a finely
+    // textured part project hundreds of thousands of triangles onto one layer, which used to be trimmed serially.
     {
-        for (size_t extruder_idx = 0; extruder_idx < num_facets_states; ++extruder_idx) {
-            for (size_t layer_idx = 0; layer_idx < layers.size(); ++layer_idx) {
+        const size_t occluded_pairs = num_facets_states * layers.size();
+        tbb::parallel_for(tbb::blocked_range<size_t>(0, occluded_pairs), [&](const tbb::blocked_range<size_t> &range) {
+            for (size_t pair_idx = range.begin(); pair_idx < range.end(); ++pair_idx) {
+                const size_t extruder_idx = pair_idx / layers.size();
+                const size_t layer_idx    = pair_idx % layers.size();
                 if (!top_raw[extruder_idx].empty() && !top_raw[extruder_idx][layer_idx].empty() && layer_idx + 1 < layers.size()) {
                     top_raw[extruder_idx][layer_idx] = diff(top_raw[extruder_idx][layer_idx], input_expolygons[layer_idx + 1]);
                 }
@@ -1322,7 +1328,7 @@ static inline std::vector<std::vector<ExPolygons>> segmentation_top_and_bottom_l
                     bottom_raw[extruder_idx][layer_idx] = diff(bottom_raw[extruder_idx][layer_idx], input_expolygons[layer_idx - 1]);
                 }
             }
-        }
+        });
     }
 
     std::vector<std::vector<ExPolygons>> triangles_by_color_bottom(num_facets_states);
@@ -1378,13 +1384,62 @@ static inline std::vector<std::vector<ExPolygons>> segmentation_top_and_bottom_l
         return out;
     };
 
+    // Projects a painted top or bottom face `ex` of layer `layer_idx` onto the shell layers below or above it (in
+    // `shell_layers`, nearest first), one more perimeter in on each, stopping at the first layer where nothing is left.
+    // Only the slices within the deepest offset of `ex` (three times that with the miter joins) decide the result, so the
+    // work is done per tile of `ex`'s ExPolygons on the slices cut to the tile's box grown by that much: the same result, but
+    // each ClipperLib call stays the size of a tile rather than of a layer cut through a fine relief, and the tiles run in
+    // parallel.
+    const auto project_to_shells = [&input_expolygons](const ExPolygons &ex, size_t layer_idx, const std::vector<size_t> &shell_layers,
+                                                       const LayerColorStat &stat, std::vector<ExPolygons> &dst, size_t dst_offset) {
+        std::vector<float> offsets(shell_layers.size());
+        float              offset = 0.f;
+        for (size_t i = 0; i < shell_layers.size(); ++i) {
+            //BBS: offset width should be 2*spacing to avoid too narrow area which has overlap of wall line
+            offset -= (stat.extrusion_spacing + stat.extrusion_width);
+            offsets[i] = offset;
+        }
+        if (offsets.empty())
+            return;
+        const coord_t reach = coord_t(std::ceil(DefaultMiterLimit * std::abs(offsets.back()))) + 10 * SCALED_EPSILON;
+        const std::vector<ClipperUtils::ExPolygonsTile> tiles = ClipperUtils::tile_expolygons(ex, 16);
+        // [shell layer][tile]
+        std::vector<std::vector<ExPolygons>> shells(shell_layers.size(), std::vector<ExPolygons>(tiles.size()));
+        tbb::parallel_for(size_t(0), tiles.size(), [&](size_t tile_idx) {
+            const ClipperUtils::ExPolygonsTile &tile = tiles[tile_idx];
+            const BoundingBox                   bbox = tile.bbox.inflated(reach);
+            ExPolygons                          tile_ex;
+            tile_ex.reserve(tile.members.size());
+            for (size_t i : tile.members)
+                tile_ex.emplace_back(ex[i]);
+            Polygons layer_slices_trimmed = ClipperUtils::clip_clipper_polygons_with_subject_bbox(input_expolygons[layer_idx], bbox);
+            for (size_t i = 0; i < shell_layers.size() && ! layer_slices_trimmed.empty(); ++i) {
+                const ExPolygons trimmed = intersection_ex(layer_slices_trimmed, ClipperUtils::clip_clipper_polygons_with_subject_bbox(input_expolygons[shell_layers[i]], bbox));
+                shells[i][tile_idx]  = opening_ex(intersection_ex(tile_ex, offset_ex(trimmed, offsets[i])), stat.small_region_threshold);
+                layer_slices_trimmed = to_polygons(trimmed);
+            }
+        });
+        for (size_t i = 0; i < shell_layers.size(); ++i) {
+            bool empty = true;
+            for (ExPolygons &shell : shells[i])
+                if (! shell.empty()) {
+                    append(dst[shell_layers[i] + dst_offset], std::move(shell));
+                    empty = false;
+                }
+            if (empty)
+                break;
+        }
+    };
+
     tbb::parallel_for(tbb::blocked_range<size_t>(0, num_layers, granularity), [&granularity, &num_layers, &num_facets_states, &layer_color_stat, &top_raw, &triangles_by_color_top,
-                                                                               &throw_on_cancel_callback, &input_expolygons, &bottom_raw, &triangles_by_color_bottom,
+                                                                               &throw_on_cancel_callback, &bottom_raw, &triangles_by_color_bottom, &project_to_shells,
                                                                                &shell_triangles_by_color_top, &shell_triangles_by_color_bottom](const tbb::blocked_range<size_t> &range) {
         size_t group_idx   = range.begin() / granularity;
         size_t layer_idx_offset = (group_idx & 1) * num_layers;
         for (size_t layer_idx = range.begin(); layer_idx < range.end(); ++ layer_idx) {
-            for (size_t color_idx = 0; color_idx < num_facets_states; ++color_idx) {
+            // Each colour writes only its own vectors, so the colours run in parallel: a painted top or bottom face
+            // projects onto a single layer, which otherwise did all of its colours on one thread.
+            tbb::parallel_for(size_t(0), size_t(num_facets_states), [&](size_t color_idx) {
                 throw_on_cancel_callback();
                 LayerColorStat stat = layer_color_stat(layer_idx, color_idx);
                 if (std::vector<Polygons> &top = top_raw[color_idx]; ! top.empty() && ! top[layer_idx].empty())
@@ -1393,18 +1448,10 @@ static inline std::vector<std::vector<ExPolygons>> segmentation_top_and_bottom_l
                         top_ex = opening_ex(top_ex, stat.small_region_threshold);
                         if (! top_ex.empty()) {
                             append(triangles_by_color_top[color_idx][layer_idx + layer_idx_offset], top_ex);
-                            float offset = 0.f;
-                            ExPolygons layer_slices_trimmed = input_expolygons[layer_idx];
-                            for (int last_idx = int(layer_idx) - 1; last_idx > std::max(int(layer_idx - stat.top_shell_layers), int(0)); --last_idx) {
-                                //BBS: offset width should be 2*spacing to avoid too narrow area which has overlap of wall line
-                                //offset -= stat.extrusion_width ;
-                                offset -= (stat.extrusion_spacing + stat.extrusion_width);
-                                layer_slices_trimmed = intersection_ex(layer_slices_trimmed, input_expolygons[last_idx]);
-                                ExPolygons last = opening_ex(intersection_ex(top_ex, offset_ex(layer_slices_trimmed, offset)), stat.small_region_threshold);
-                                if (last.empty())
-                                    break;
-                                append(shell_triangles_by_color_top[color_idx][last_idx + layer_idx_offset], std::move(last));
-                            }
+                            std::vector<size_t> shell_layers;
+                            for (int last_idx = int(layer_idx) - 1; last_idx > std::max(int(layer_idx - stat.top_shell_layers), int(0)); --last_idx)
+                                shell_layers.emplace_back(size_t(last_idx));
+                            project_to_shells(top_ex, layer_idx, shell_layers, stat, shell_triangles_by_color_top[color_idx], layer_idx_offset);
                         }
                     }
                 if (std::vector<Polygons> &bottom = bottom_raw[color_idx]; ! bottom.empty() && ! bottom[layer_idx].empty())
@@ -1413,21 +1460,13 @@ static inline std::vector<std::vector<ExPolygons>> segmentation_top_and_bottom_l
                         bottom_ex = opening_ex(bottom_ex, stat.small_region_threshold);
                         if (! bottom_ex.empty()) {
                             append(triangles_by_color_bottom[color_idx][layer_idx + layer_idx_offset], bottom_ex);
-                            float offset = 0.f;
-                            ExPolygons layer_slices_trimmed = input_expolygons[layer_idx];
-                            for (size_t last_idx = layer_idx + 1; last_idx < std::min(layer_idx + stat.bottom_shell_layers, num_layers); ++last_idx) {
-                                //BBS: offset width should be 2*spacing to avoid too narrow area which has overlap of wall line
-                                //offset -= stat.extrusion_width;
-                                offset -= (stat.extrusion_spacing + stat.extrusion_width);
-                                layer_slices_trimmed = intersection_ex(layer_slices_trimmed, input_expolygons[last_idx]);
-                                ExPolygons last = opening_ex(intersection_ex(bottom_ex, offset_ex(layer_slices_trimmed, offset)), stat.small_region_threshold);
-                                if (last.empty())
-                                    break;
-                                append(shell_triangles_by_color_bottom[color_idx][last_idx + layer_idx_offset], std::move(last));
-                            }
-                        }
+                            std::vector<size_t> shell_layers;
+                            for (size_t last_idx = layer_idx + 1; last_idx < std::min(layer_idx + stat.bottom_shell_layers, num_layers); ++last_idx)
+                                shell_layers.emplace_back(last_idx);
+                            project_to_shells(bottom_ex, layer_idx, shell_layers, stat, shell_triangles_by_color_bottom[color_idx], layer_idx_offset);
                         }
                     }
+            });
         }
     });
 
@@ -1437,22 +1476,25 @@ static inline std::vector<std::vector<ExPolygons>> segmentation_top_and_bottom_l
                                                                   &shell_triangles_by_color_top, &shell_triangles_by_color_bottom](const tbb::blocked_range<size_t> &range) {
         for (size_t layer_idx = range.begin(); layer_idx < range.end(); ++ layer_idx) {
             throw_on_cancel_callback();
-            ExPolygons painted_exploys;
-            for (size_t color_idx = 0; color_idx < triangles_by_color_merged.size(); ++color_idx) {
+            // The per-colour unions below are independent of each other, so they run in parallel (a painted top or
+            // bottom face puts all of its colours on one layer); whatever combines the colours stays in colour order.
+            const auto merge_colour_union = [&](size_t color_idx) {
                 auto &self = triangles_by_color_merged[color_idx][layer_idx];
                 append(self, std::move(triangles_by_color_bottom[color_idx][layer_idx]));
                 append(self, std::move(triangles_by_color_bottom[color_idx][layer_idx + num_layers]));
                 append(self, std::move(triangles_by_color_top[color_idx][layer_idx]));
                 append(self, std::move(triangles_by_color_top[color_idx][layer_idx + num_layers]));
                 self = union_ex(self);
+            };
+            tbb::parallel_for(size_t(0), triangles_by_color_merged.size(), merge_colour_union);
 
-                append(painted_exploys, self);
-            }
-
+            ExPolygons painted_exploys;
+            for (size_t color_idx = 0; color_idx < triangles_by_color_merged.size(); ++color_idx)
+                append(painted_exploys, triangles_by_color_merged[color_idx][layer_idx]);
             painted_exploys = union_ex(painted_exploys);
 
             //BBS: merge the top and bottom shell layers
-            for (size_t color_idx = 0; color_idx < triangles_by_color_merged.size(); ++color_idx) {
+            tbb::parallel_for(size_t(0), triangles_by_color_merged.size(), [&](size_t color_idx) {
                 auto &self = triangles_by_color_merged[color_idx][layer_idx];
 
                 auto top_area = diff_ex(union_ex(shell_triangles_by_color_top[color_idx][layer_idx],
@@ -1466,7 +1508,7 @@ static inline std::vector<std::vector<ExPolygons>> segmentation_top_and_bottom_l
                 append(self, top_area);
                 append(self, bottom_area);
                 self = union_ex(self);
-            }
+            });
             // Trim one region by the other if some of the regions overlap.
             ExPolygons painted_regions;
             for (size_t color_idx = 1; color_idx < triangles_by_color_merged.size(); ++color_idx) {
@@ -1833,7 +1875,69 @@ static void remove_multiple_edges_in_vertices(MMU_Graph &graph, const std::vecto
     }
 }
 
-static std::vector<std::vector<ExPolygons>> merge_segmented_layers(const std::vector<std::vector<ExPolygons>> &segmented_regions,
+
+// Finds the islands (layer ExPolygons) a region piece overlaps. A top or bottom region is projected from the neighbouring
+// layers and may reach past the island it belongs to, or over several islands.
+class IslandLocator
+{
+public:
+    explicit IslandLocator(const ExPolygons &islands) : m_islands(islands)
+    {
+        m_bboxes.reserve(islands.size());
+        for (const ExPolygon &island : islands) {
+            m_bboxes.emplace_back(get_extents(island));
+            m_extent.merge(m_bboxes.back());
+        }
+        if (!m_extent.defined)
+            return;
+        const Point size = m_extent.size();
+        m_cell_w = std::max<coord_t>(1, size.x() / GRID + 1);
+        m_cell_h = std::max<coord_t>(1, size.y() / GRID + 1);
+        m_grid.assign(GRID * GRID, {});
+        for (size_t i = 0; i < m_bboxes.size(); ++i)
+            for_cells(m_bboxes[i], [&](int cell) { m_grid[cell].emplace_back(i); });
+    }
+
+    void find(const ExPolygon &piece, std::vector<size_t> &out) const
+    {
+        out.clear();
+        const BoundingBox bbox = get_extents(piece);
+        if (!m_extent.defined || !m_extent.overlap(bbox))
+            return;
+        for_cells(bbox, [&](int cell) {
+            for (size_t i : m_grid[cell])
+                if (m_bboxes[i].overlap(bbox))
+                    out.emplace_back(i);
+        });
+        sort_remove_duplicates(out);
+        if (out.size() > 1)
+            out.erase(std::remove_if(out.begin(), out.end(), [&](size_t i) {
+                const BoundingBox common(m_bboxes[i].min.cwiseMax(bbox.min), m_bboxes[i].max.cwiseMin(bbox.max));
+                return intersection(ClipperUtils::clip_clipper_polygons_with_subject_bbox(piece, common.inflated(SCALED_EPSILON)),
+                                    ClipperUtils::clip_clipper_polygons_with_subject_bbox(m_islands[i], common.inflated(SCALED_EPSILON))).empty();
+            }), out.end());
+    }
+
+private:
+    static constexpr int GRID = 64;
+    template<typename Fn> void for_cells(const BoundingBox &bb, Fn &&fn) const
+    {
+        const int x0 = std::clamp(int((bb.min.x() - m_extent.min.x()) / m_cell_w), 0, GRID - 1), x1 = std::clamp(int((bb.max.x() - m_extent.min.x()) / m_cell_w), 0, GRID - 1);
+        const int y0 = std::clamp(int((bb.min.y() - m_extent.min.y()) / m_cell_h), 0, GRID - 1), y1 = std::clamp(int((bb.max.y() - m_extent.min.y()) / m_cell_h), 0, GRID - 1);
+        for (int y = y0; y <= y1; ++y)
+            for (int x = x0; x <= x1; ++x)
+                fn(y * GRID + x);
+    }
+
+    const ExPolygons                &m_islands;
+    std::vector<BoundingBox>         m_bboxes;
+    BoundingBox                      m_extent;
+    coord_t                          m_cell_w = 1, m_cell_h = 1;
+    std::vector<std::vector<size_t>> m_grid;
+};
+
+static std::vector<std::vector<ExPolygons>> merge_segmented_layers(const std::vector<ExPolygons>              &input_expolygons,
+                                                                   const std::vector<std::vector<ExPolygons>> &segmented_regions,
                                                                    std::vector<std::vector<ExPolygons>>      &&top_and_bottom_layers,
                                                                    const size_t                                num_facets_states,
                                                                    const std::function<void()>                &throw_on_cancel_callback)
@@ -1844,33 +1948,91 @@ static std::vector<std::vector<ExPolygons>> merge_segmented_layers(const std::ve
     assert(!top_and_bottom_layers.size() || num_facets_states == top_and_bottom_layers.size());
 
     BOOST_LOG_TRIVIAL(debug) << "Print object segmentation - Merging segmented layers in parallel - Begin";
-    tbb::parallel_for(tbb::blocked_range<size_t>(0, num_layers), [&segmented_regions, &top_and_bottom_layers, &segmented_regions_merged, &num_facets_states, &throw_on_cancel_callback](const tbb::blocked_range<size_t> &range) {
+    // Every region of a layer is merged together with the regions of the islands it overlaps, and the islands are further
+    // apart than the dimple removal below reaches, so this gives the same result as merging the layer at once. On a layer
+    // cut through a fine relief every region shares thousands of hole contours with every other, and ClipperLib, splitting
+    // and re-linking one huge polygon over and over, took anything up to half an hour for a layer; per island each operation
+    // stays the size of the island, and the islands run in parallel.
+    tbb::parallel_for(tbb::blocked_range<size_t>(0, num_layers), [&](const tbb::blocked_range<size_t> &range) {
         for (size_t layer_idx = range.begin(); layer_idx < range.end(); ++layer_idx) {
             assert(segmented_regions[layer_idx].size() == num_facets_states);
-            // Zero is skipped because it is the default color of the volume
-            for (size_t extruder_id = 1; extruder_id < num_facets_states; ++extruder_id) {
             throw_on_cancel_callback();
-                if (!segmented_regions[layer_idx][extruder_id].empty()) {
-                    ExPolygons segmented_regions_trimmed = segmented_regions[layer_idx][extruder_id];
-                    if (!top_and_bottom_layers.empty()) {
-                        for (const std::vector<ExPolygons> &top_and_bottom_by_extruder : top_and_bottom_layers) {
-                            if (!top_and_bottom_by_extruder[layer_idx].empty() && !segmented_regions_trimmed.empty()) {
-                                segmented_regions_trimmed = diff_ex(segmented_regions_trimmed, top_and_bottom_by_extruder[layer_idx]);
-                            }
-                        }
+            // Group the islands joined by a region overlapping several of them; the last group takes the regions lying
+            // outside every island.
+            const ExPolygons   &islands = input_expolygons[layer_idx];
+            const IslandLocator locator(islands);
+            std::vector<size_t> parent(islands.size() + 1);
+            std::iota(parent.begin(), parent.end(), 0);
+            const auto root = [&parent](size_t i) {
+                while (parent[i] != i)
+                    i = parent[i] = parent[parent[i]];
+                return i;
+            };
+            // Islands of every piece: side regions of colours 1.., then top/bottom regions of colours 0..
+            std::vector<const ExPolygon *> pieces;
+            for (size_t extruder_id = 1; extruder_id < num_facets_states; ++extruder_id)
+                for (const ExPolygon &piece : segmented_regions[layer_idx][extruder_id])
+                    pieces.emplace_back(&piece);
+            if (!top_and_bottom_layers.empty())
+                for (size_t color_idx = 0; color_idx < num_facets_states; ++color_idx)
+                    for (const ExPolygon &piece : top_and_bottom_layers[color_idx][layer_idx])
+                        pieces.emplace_back(&piece);
+            std::vector<std::vector<size_t>> overlapped(pieces.size());
+            tbb::parallel_for(size_t(0), pieces.size(), [&](size_t i) { locator.find(*pieces[i], overlapped[i]); });
+            std::vector<size_t> piece_island(pieces.size());
+            for (size_t i = 0; i < pieces.size(); ++i) {
+                piece_island[i] = overlapped[i].empty() ? islands.size() : overlapped[i].front();
+                for (size_t island : overlapped[i])
+                    parent[root(island)] = root(piece_island[i]);
             }
+            std::vector<size_t> bucket_of(parent.size(), size_t(-1));
+            size_t              num_buckets = 0;
+            for (size_t i = 0; i < parent.size(); ++i)
+                if (size_t &b = bucket_of[root(i)]; b == size_t(-1))
+                    b = num_buckets++;
 
-                    segmented_regions_merged[layer_idx][extruder_id - 1] = std::move(segmented_regions_trimmed);
-                }
+            // [bucket][colour]
+            std::vector<std::vector<ExPolygons>> sides(num_buckets, std::vector<ExPolygons>(num_facets_states));
+            std::vector<std::vector<ExPolygons>> tops(num_buckets, std::vector<ExPolygons>(num_facets_states));
+            size_t                               piece_idx = 0;
+            for (size_t extruder_id = 1; extruder_id < num_facets_states; ++extruder_id)
+                for (const ExPolygon &piece : segmented_regions[layer_idx][extruder_id])
+                    sides[bucket_of[root(piece_island[piece_idx++])]][extruder_id].emplace_back(piece);
+            if (!top_and_bottom_layers.empty())
+                for (size_t color_idx = 0; color_idx < num_facets_states; ++color_idx)
+                    for (const ExPolygon &piece : top_and_bottom_layers[color_idx][layer_idx])
+                        tops[bucket_of[root(piece_island[piece_idx++])]][color_idx].emplace_back(piece);
 
-                if (!top_and_bottom_layers.empty() && !top_and_bottom_layers[extruder_id][layer_idx].empty()) {
-                    bool was_top_and_bottom_empty = segmented_regions_merged[layer_idx][extruder_id - 1].empty();
-                    append(segmented_regions_merged[layer_idx][extruder_id - 1], top_and_bottom_layers[extruder_id][layer_idx]);
+            // Side regions minus the top/bottom regions of every colour.
+            std::vector<std::vector<ExPolygons>> merged(num_buckets, std::vector<ExPolygons>(num_facets_states));
+            tbb::parallel_for(size_t(0), num_buckets, [&](size_t bucket) {
+                Polygons tops_all;
+                for (const ExPolygons &t : tops[bucket])
+                    polygons_append(tops_all, t);
+                for (size_t extruder_id = 1; extruder_id < num_facets_states; ++extruder_id)
+                    if (!sides[bucket][extruder_id].empty())
+                        merged[bucket][extruder_id] = tops_all.empty() ? std::move(sides[bucket][extruder_id]) :
+                                                                         diff_ex_by_piece(sides[bucket][extruder_id], tops_all);
+            });
 
-                    // Remove dimples (#7235) appearing after merging side segmentation of the model with tops and bottoms painted layers.
-                    if (!was_top_and_bottom_empty)
-                        segmented_regions_merged[layer_idx][extruder_id - 1] = offset2_ex(union_ex(segmented_regions_merged[layer_idx][extruder_id - 1]), float(SCALED_EPSILON), -float(SCALED_EPSILON));
+            // Then this colour's top/bottom regions, with the dimples removed (#7235) when the layer has side regions left.
+            for (size_t extruder_id = 1; extruder_id < num_facets_states; ++extruder_id) {
+                if (top_and_bottom_layers.empty() || top_and_bottom_layers[extruder_id][layer_idx].empty()) {
+                    for (size_t bucket = 0; bucket < num_buckets; ++bucket)
+                        append(segmented_regions_merged[layer_idx][extruder_id - 1], std::move(merged[bucket][extruder_id]));
+                    continue;
                 }
+                bool was_top_and_bottom_empty = true;
+                for (size_t bucket = 0; bucket < num_buckets && was_top_and_bottom_empty; ++bucket)
+                    was_top_and_bottom_empty = merged[bucket][extruder_id].empty();
+                tbb::parallel_for(size_t(0), num_buckets, [&](size_t bucket) {
+                    ExPolygons &region = merged[bucket][extruder_id];
+                    append(region, tops[bucket][extruder_id]);
+                    if (!was_top_and_bottom_empty && !region.empty())
+                        region = offset2_ex(union_ex(region), float(SCALED_EPSILON), -float(SCALED_EPSILON));
+                });
+                for (size_t bucket = 0; bucket < num_buckets; ++bucket)
+                    append(segmented_regions_merged[layer_idx][extruder_id - 1], std::move(merged[bucket][extruder_id]));
             }
         }
     }); // end of parallel_for
@@ -2157,16 +2319,56 @@ std::vector<std::vector<ExPolygons>> segmentation_by_painting(const PrintObject
 
                 assert(!color_poly.empty());
                 assert(!color_poly.front().empty());
-                if (has_layer_only_one_color(color_poly)) {
-                    // If the whole layer is painted using the same color, it is not needed to construct a Voronoi diagram for the segmentation of this layer.
-                    segmented_regions[layer_idx][size_t(color_poly.front().front().color)] = input_expolygons[layer_idx];
-                } else {
-                    MMU_Graph graph = build_graph(layer_idx, color_poly);
-                    remove_multiple_edges_in_vertices(graph, color_poly);
-                    graph.remove_nodes_with_one_arc();
-                    segmented_regions[layer_idx] = extract_colored_segments(graph, num_facets_states);
-                    //segmented_regions[layer_idx] = extract_colored_segments(color_poly, num_extruders, layer_idx);
+                // Each island (an ExPolygon with its holes) is segmented on its own. Any point of an island is closer to
+                // that island's contours than to any other island's - the way out crosses its own boundary first - so its
+                // Voronoi cells, and with them its colour regions, depend on nothing else. A layer cut through a fine relief
+                // has thousands of islands, and one Voronoi diagram over all of them degenerated into overlapping regions
+                // that every boolean afterwards had to untangle. Per island the diagrams stay small and the islands run in
+                // parallel; an island in a single colour needs no diagram at all.
+                const ExPolygons                      &islands = input_expolygons[layer_idx];
+                std::vector<std::pair<size_t, size_t>> island_contours(islands.size()); // [first, last) into color_poly
+                {
+                    // The same order EdgeGrid::Grid::create() lists the contours in, and so colorize_contours().
+                    size_t idx = 0;
+                    for (size_t island_idx = 0; island_idx < islands.size(); ++island_idx) {
+                        const size_t first = idx;
+                        if (!islands[island_idx].contour.empty())
+                            ++idx;
+                        for (const Polygon &hole : islands[island_idx].holes)
+                            if (!hole.empty())
+                                ++idx;
+                        island_contours[island_idx] = {first, idx};
                     }
+                    assert(idx == color_poly.size());
+                }
+                std::vector<std::vector<ExPolygons>> island_regions(islands.size());
+                tbb::parallel_for(size_t(0), islands.size(), [&](size_t island_idx) {
+                    const auto [first, last] = island_contours[island_idx];
+                    if (first == last)
+                        return;
+                    const std::vector<ColoredLines> island_poly(color_poly.begin() + first, color_poly.begin() + last);
+                    std::vector<ExPolygons>        &regions = island_regions[island_idx];
+                    if (has_layer_only_one_color(island_poly)) {
+                        regions.assign(num_facets_states, ExPolygons());
+                        regions[size_t(island_poly.front().front().color)].emplace_back(islands[island_idx]);
+                    } else {
+                        MMU_Graph graph = build_graph(layer_idx, island_poly);
+                        remove_multiple_edges_in_vertices(graph, island_poly);
+                        graph.remove_nodes_with_one_arc();
+                        regions = extract_colored_segments(graph, num_facets_states);
+                        // The faces of one colour tile it without overlapping; merged here, where an island is small,
+                        // every later boolean gets a few regions instead of thousands of faces sharing their edges. An
+                        // island with many holes keeps its faces: merged, each colour would be one region with thousands
+                        // of holes, and subtracting from that is far slower than from the faces one at a time.
+                        if (island_poly.size() <= 64)
+                            for (ExPolygons &faces : regions)
+                                if (faces.size() > 1)
+                                    faces = union_ex(faces);
+                    }
+                });
+                for (std::vector<ExPolygons> &regions : island_regions)
+                    for (size_t color_idx = 0; color_idx < regions.size(); ++color_idx)
+                        append(segmented_regions[layer_idx][color_idx], std::move(regions[color_idx]));
 
 #ifdef MM_SEGMENTATION_DEBUG_REGIONS
                 export_regions_to_svg(debug_out_path("3-mm-regions-sides-%d-%d.svg", layer_idx, iRun), segmented_regions[layer_idx], input_expolygons[layer_idx]);
@@ -2189,7 +2391,7 @@ std::vector<std::vector<ExPolygons>> segmentation_by_painting(const PrintObject
         throw_on_cancel_callback();
     }
 
-    std::vector<std::vector<ExPolygons>> segmented_regions_merged = merge_segmented_layers(segmented_regions, std::move(top_and_bottom_layers), num_facets_states, throw_on_cancel_callback);
+    std::vector<std::vector<ExPolygons>> segmented_regions_merged = merge_segmented_layers(input_expolygons, segmented_regions, std::move(top_and_bottom_layers), num_facets_states, throw_on_cancel_callback);
     throw_on_cancel_callback();
 
 #ifdef MM_SEGMENTATION_DEBUG_REGIONS

src/libslic3r/MultiPoint.hpp

@@ -19,11 +19,15 @@ public:
     
     MultiPoint() {}
     MultiPoint(const MultiPoint &other) : points(other.points) {}
-    MultiPoint(MultiPoint &&other) : points(std::move(other.points)) {}
+    MultiPoint(MultiPoint &&other) noexcept : points(std::move(other.points)) {}
     MultiPoint(std::initializer_list<Point> list) : points(list) {}
     explicit MultiPoint(const Points &_points) : points(_points) {}
+    // Without it, the derived classes' move constructors passing std::move(points) here copied them, which
+    // also means a moved-from Polygon or Polyline is now really empty where it used to silently keep its
+    // points: a use-after-move anywhere in the tree that happened to work before now sees nothing.
+    explicit MultiPoint(Points &&_points) noexcept : points(std::move(_points)) {}
     MultiPoint& operator=(const MultiPoint &other) { points = other.points; return *this; }
-    MultiPoint& operator=(MultiPoint &&other) { points = std::move(other.points); return *this; }
+    MultiPoint& operator=(MultiPoint &&other) noexcept { points = std::move(other.points); return *this; }
     virtual ~MultiPoint() = default;
     void scale(double factor);
     void scale(double factor_x, double factor_y);

src/libslic3r/ParallelResolve.hpp

@@ -1,65 +0,0 @@
-#pragma once
-
-#include <algorithm>
-#include <cstddef>
-#include <type_traits>
-#include <utility>
-#include <variant>
-#include <vector>
-
-#include <tbb/blocked_range.h>
-#include <tbb/parallel_for.h>
-#include <tbb/task_arena.h>
-#include <tbb/task_group.h>
-
-#include "Exception.hpp"
-
-namespace Slic3r {
-
-// A batch of resolved presets, each a whole config, is what resolve_then_commit adds
-// to peak memory, so it stays far below a vendor's preset count and above any core count.
-inline constexpr size_t resolve_batch_size = 64;
-
-// Resolve `count` items that do not depend on each other and install them one at
-// a time.
-//
-// `resolve(i)` runs on any thread and must read only, since the items are
-// resolved side by side. `commit(i, resolved)` is called for every item in index
-// order, on the calling thread, and is where shared state is written.
-//
-// The items are worked through in batches, so what is resolved and held at once
-// does not grow with `count`. An exception from either callable propagates after
-// the batches before it have been committed. A cancellation of the caller's task
-// group, which stops a batch partway without an exception, throws RuntimeError
-// before that batch commits.
-//
-// `ChunkSetup`, when given, is constructed once for each piece of a batch TBB hands
-// out, for per-thread state a resolve would otherwise set up per item, such as the
-// C numeric locale, whose setting takes a lock the whole process shares.
-template<class ChunkSetup = std::monostate, class Resolve, class Commit>
-void resolve_then_commit(size_t count, Resolve resolve, Commit commit)
-{
-    using Resolved = std::invoke_result_t<Resolve&, size_t>;
-
-    std::vector<Resolved> resolved(std::min(count, resolve_batch_size));
-    for (size_t first = 0; first < count; first += resolve_batch_size) {
-        const size_t last = std::min(first + resolve_batch_size, count);
-        // Isolated, so a thread waiting on the batch runs none of the caller's other
-        // tasks before finishing it.
-        tbb::this_task_arena::isolate([&] {
-            tbb::parallel_for(tbb::blocked_range<size_t>(first, last),
-                [&](const tbb::blocked_range<size_t>& range) {
-                    ChunkSetup setup;
-                    (void) setup;
-                    for (size_t i = range.begin(); i < range.end(); ++ i)
-                        resolved[i - first] = resolve(i);
-                });
-        });
-        if (tbb::is_current_task_group_canceling())
-            throw RuntimeError("resolve_then_commit: canceled before the batch was resolved");
-        for (size_t i = first; i < last; ++ i)
-            commit(i, std::move(resolved[i - first]));
-    }
-}
-
-} // namespace Slic3r

src/libslic3r/PerimeterGenerator.cpp

@@ -17,6 +17,8 @@
 #include <cassert>
 #include <unordered_set>
 #include <thread>
+#include <tbb/blocked_range.h>
+#include <tbb/parallel_for.h>
 #include "libslic3r/AABBTreeLines.hpp"
 #include "Print.hpp"
 static const int overhang_sampling_number = 6;
@@ -2481,7 +2483,22 @@ void PerimeterGenerator::process_arachne()
     const bool only_one_wall_first_layer = this->config->only_one_wall_first_layer && has_bottom_shell_layers(*this->config);
     // we need to process each island separately because we might have different
     // extra perimeters for each one
-    for (const Surface& surface : all_surfaces) {
+    // Each island is independent up to its outputs, so they are generated in parallel - a layer split into thousands
+    // of islands (e.g. by colour painting) otherwise ran on one thread - and the outputs are then committed in the
+    // original island order, which is what the extra overhang perimeters (applied to the last island's loops and to
+    // all fill surfaces so far) depend on.
+    struct ArachneSurfaceResult
+    {
+        ExtrusionEntityCollection loops;
+        bool                      has_loops = false;
+        ExPolygons                infill;
+        ExPolygons                no_overlap;
+    };
+    std::vector<ArachneSurfaceResult> results(all_surfaces.size());
+    tbb::parallel_for(tbb::blocked_range<size_t>(0, all_surfaces.size()), [&](const tbb::blocked_range<size_t> &range) {
+      for (size_t surface_idx = range.begin(); surface_idx < range.end(); ++surface_idx) {
+        const Surface        &surface = all_surfaces[surface_idx];
+        ArachneSurfaceResult &result  = results[surface_idx];
             coord_t bead_width_0 = ext_perimeter_spacing;
             // detect how many perimeters must be generated for this island
             int loop_number = this->config->wall_loops + surface.extra_perimeters - 1; // 0-indexed loops
@@ -2745,10 +2762,10 @@ void PerimeterGenerator::process_arachne()
                     // Get searching thresholds. For an external perimeter we take the external perimeter spacing/2 plus the internal perimeter spacing/2 and expand by the factor
                     // rounding errors. When precise wall is enabled, the external perimeter full spacing is used.
                     coord_t threshold_external = (apply_precise_outer_wall)
-                    // Precise outer wall ⇒ use “full external spacing”
+                        // Precise outer wall: use the full external spacing
                         ? ( this->ext_perimeter_flow.scaled_spacing()
                             + this->perimeter_flow.scaled_spacing()/2.0 )
-                    // Normal ⇒ half ext spacing + half int spacing
+                        // Normal: half ext spacing plus half int spacing
                         : ( this->ext_perimeter_flow.scaled_spacing()/2.0
                             + this->perimeter_flow.scaled_spacing()/2.0 );
                 
@@ -2838,7 +2855,8 @@ void PerimeterGenerator::process_arachne()
                                         this->config->overhang_reverse_internal_only);
                 }
                 defer_unsupported_loops(*this, extrusion_coll);
-            this->loops->append(extrusion_coll);
+                result.loops     = std::move(extrusion_coll);
+                result.has_loops = true;
             }
 
             const coord_t spacing = (perimeters.size() == 1) ? ext_perimeter_spacing2 : perimeter_spacing;
@@ -2881,9 +2899,7 @@ void PerimeterGenerator::process_arachne()
             if (!top_expolygons.empty()) {
                 infill_exp = union_ex(infill_exp, offset_ex(top_expolygons, double(top_inset)));
             }
-        this->fill_surfaces->append(infill_exp, stInternal);
-
-        apply_extra_perimeters(infill_exp);
+            result.infill = std::move(infill_exp);
 
             // BBS: get the no-overlap infill expolygons
             {
@@ -2894,9 +2910,18 @@ void PerimeterGenerator::process_arachne()
                     float(+min_perimeter_infill_spacing / 2.));
                 if (!top_expolygons.empty())
                     polyWithoutOverlap = union_ex(polyWithoutOverlap, top_expolygons);
-            this->fill_no_overlap->insert(this->fill_no_overlap->end(), polyWithoutOverlap.begin(), polyWithoutOverlap.end());
+                result.no_overlap = std::move(polyWithoutOverlap);
             }
       }
+    });
+    for (ArachneSurfaceResult &result : results) {
+        if (result.has_loops)
+            // Moved, not copied: append(const ExtrusionEntity &) clones the whole wall tree of the island.
+            this->loops->append(std::move(result.loops));
+        this->fill_surfaces->append(result.infill, stInternal);
+        apply_extra_perimeters(result.infill);
+        append(*this->fill_no_overlap, std::move(result.no_overlap));
+    }
 }
 
 bool PerimeterGeneratorLoop::is_internal_contour() const

src/libslic3r/Polygon.hpp

@@ -27,7 +27,7 @@ public:
     explicit Polygon(const Points &points) : MultiPoint(points) {}
 	Polygon(std::initializer_list<Point> points) : MultiPoint(points) {}
     Polygon(const Polygon &other) : MultiPoint(other.points) {}
-    Polygon(Polygon &&other) : MultiPoint(std::move(other.points)) {}
+    Polygon(Polygon &&other) noexcept : MultiPoint(std::move(other.points)) {}
 	static Polygon new_scale(const std::vector<Vec2d> &points) { 
         Polygon pgn;
         pgn.points.reserve(points.size());
@@ -36,7 +36,7 @@ public:
 		return pgn;
 	}
     Polygon& operator=(const Polygon &other) { points = other.points; return *this; }
-    Polygon& operator=(Polygon &&other) { points = std::move(other.points); return *this; }
+    Polygon& operator=(Polygon &&other) noexcept { points = std::move(other.points); return *this; }
 
     Point& operator[](Points::size_type idx) { return this->points[idx]; }
     const Point& operator[](Points::size_type idx) const { return this->points[idx]; }

src/libslic3r/Polyline.hpp

@@ -20,7 +20,7 @@ class Polyline : public MultiPoint {
 public:
     Polyline() {};
     Polyline(const Polyline& other) : MultiPoint(other.points), fitting_result(other.fitting_result) {}
-    Polyline(Polyline &&other) : MultiPoint(std::move(other.points)), fitting_result(std::move(other.fitting_result))  {}
+    Polyline(Polyline &&other) noexcept : MultiPoint(std::move(other.points)), fitting_result(std::move(other.fitting_result))  {}
     Polyline(std::initializer_list<Point> list) : MultiPoint(list) { 
         fitting_result.clear();
     }
@@ -41,7 +41,7 @@ public:
         fitting_result = other.fitting_result;
         return *this;
     }
-    Polyline& operator=(Polyline&& other) {
+    Polyline& operator=(Polyline&& other) noexcept {
         points = std::move(other.points);
         fitting_result = std::move(other.fitting_result);
         return *this;

src/libslic3r/Preset.cpp

@@ -5,8 +5,6 @@
 #include "Preset.hpp"
 #include "PresetBundle.hpp"
 #include "AppConfig.hpp"
-#include "LocalesUtils.hpp"
-#include "ParallelResolve.hpp"
 
 #ifdef _MSC_VER
     #define WIN32_LEAN_AND_MEAN
@@ -508,11 +506,10 @@ void Preset::normalize(DynamicPrintConfig &config)
     handle_legacy_sla(config);
 }
 
-std::string Preset::remove_invalid_keys(DynamicPrintConfig &config, const DynamicPrintConfig &default_config,
-                                        const DynamicPrintConfig *added)
+std::string Preset::remove_invalid_keys(DynamicPrintConfig &config, const DynamicPrintConfig &default_config)
 {
     std::string incorrect_keys;
-    for (const std::string &key : (added != nullptr ? *added : config).keys())
+    for (const std::string &key : config.keys())
         if (! default_config.has(key)) {
             if (incorrect_keys.empty())
                 incorrect_keys = key;
@@ -624,6 +621,7 @@ void Preset::load_info(const std::string& file)
             }
             else if (v.first.compare("base_id") == 0) {
                 this->base_id = v.second.get_value<std::string>();
+                BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << " load info from: " << file << " and base_id: " << this->base_id;
                 if (this->base_id.compare("null") == 0)
                     this->base_id.clear();
             }
@@ -976,37 +974,6 @@ void Preset::get_extruder_names_and_keysets(Type type, std::string& extruder_id_
     }
 }
 
-DynamicPrintConfig Preset::load_external_config(Type type, const DynamicPrintConfig &default_config, const DynamicPrintConfig &project_config,
-                                                const std::set<std::string> &different_settings_list,
-                                                const std::function<DynamicPrintConfig *(const std::string &inherits)> &find_base,
-                                                t_config_option_keys *keys)
-{
-    // Load the preset over a default preset, so that the missing fields are filled in from the default preset.
-    DynamicPrintConfig cfg(default_config);
-    // SoftFever: ignore print connection info from project
-    auto        cfg_keys = cfg.keys();
-    cfg_keys.erase(std::remove_if(cfg_keys.begin(), cfg_keys.end(),
-                              [](std::string &val) {
-                                return val == "print_host" || val == "print_host_webui" || val == "printhost_apikey" ||
-                                       val == "printhost_cafile" || val == "printhost_user" || val == "printhost_password" || val == "printhost_port";
-                              }),
-               cfg_keys.end());
-    cfg.apply_only(project_config, cfg_keys, true);
-
-    //add different settings check logic, replace the old system preset's default value with new system preset's default values
-    if (!different_settings_list.empty()) {
-        if (DynamicPrintConfig *base_config = find_base(Preset::inherits(cfg))) {
-            std::string extruder_id_name, extruder_variant_name;
-            std::set<std::string> *key_set1 = nullptr, *key_set2 = nullptr;
-            Preset::get_extruder_names_and_keysets(type, extruder_id_name, extruder_variant_name, &key_set1, &key_set2);
-            cfg.update_non_diff_values_to_base_config(*base_config, cfg_keys, different_settings_list, extruder_id_name, extruder_variant_name, *key_set1, *key_set2);
-        }
-    }
-    if (keys)
-        *keys = std::move(cfg_keys);
-    return cfg;
-}
-
 bool Preset::has_lidar(PresetBundle *preset_bundle)
 {
     bool has_lidar = false;
@@ -1702,169 +1669,6 @@ std::string PresetCollection::canonical_preset_name(const std::string &name, con
     return get_preset_canonical_name(parsed.bare, origin);
 }
 
-PresetCollection::UserPresetLoad PresetCollection::resolve_user_preset(
-    const boost::filesystem::path &file, const std::string &canonical_name,
-    const PresetOrigin &load_origin, ForwardCompatibilitySubstitutionRule substitution_rule,
-    const std::string &extruder_id_name, const std::string &extruder_variant_name,
-    std::set<std::string> *key_set1, std::set<std::string> *key_set2) const
-{
-    UserPresetLoad out;
-    out.preset = Preset(m_type, canonical_name, false);
-    Preset &preset = out.preset;
-    preset.bundle_id = load_origin.bundle_id;
-    preset.file = file.string();
-    // Load the preset file, apply preset values on top of defaults.
-    try {
-        fs::path idx_path(preset.file);
-        idx_path.replace_extension(".info");
-        if (fs::exists(idx_path)) {
-            out.info_file = idx_path.string();
-            preset.load_info(out.info_file);
-        }
-        DynamicPrintConfig config;
-        //BBS: change to json format
-        //ConfigSubstitutions config_substitutions = config.load_from_ini(preset.file, substitution_rule);
-        std::map<std::string, std::string> key_values;
-        std::string reason;
-        ConfigSubstitutions config_substitutions = config.load_from_json(preset.file, substitution_rule, key_values, reason);
-        if (! config_substitutions.empty())
-            out.substitutions.push_back({ preset.name, m_type, PresetConfigSubstitutions::Source::UserFile, preset.file, std::move(config_substitutions) });
-        if (!reason.empty()) {
-            out.discard_file = true;
-            out.errors.push_back((boost::format("parse config %1% failed") % preset.file).str());
-            return out;
-        }
-
-        std::string version_str = key_values[BBL_JSON_KEY_VERSION];
-        boost::optional<Semver> version = Semver::parse(version_str);
-        if (!version) return out;
-        preset.version = *version;
-
-        if (key_values.find(BBL_JSON_KEY_FILAMENT_ID) != key_values.end())
-            preset.filament_id = key_values[BBL_JSON_KEY_FILAMENT_ID];
-        if (key_values.find(BBL_JSON_KEY_DESCRIPTION) != key_values.end())
-            preset.description = key_values[BBL_JSON_KEY_DESCRIPTION];
-        if (key_values.find(BBL_JSON_KEY_INSTANTIATION) != key_values.end())
-            preset.is_visible = key_values[BBL_JSON_KEY_INSTANTIATION] != "false";
-
-        //Orca: find and use the inherit config as the base
-        const Preset* inherit_preset = nullptr;
-        ConfigOption* inherits_config = config.option(BBL_JSON_KEY_INHERITS);
-
-        // check inherits_config
-        if (inherits_config) {
-            ConfigOptionString * option_str = dynamic_cast<ConfigOptionString *> (inherits_config);
-            std::string inherits_value = option_str->value;
-            // Orca: try to find if the parent preset has been renamed
-            inherit_preset = this->find_preset2(inherits_value);
-            Preset::normalize_inherits(config, inherit_preset);
-        }
-        const Preset& default_preset = this->default_preset_for(config);
-        if (inherit_preset) {
-            preset.config = inherit_preset->config;
-            preset.filament_id = inherit_preset->filament_id;
-            extend_default_config_length(config, false, {});
-            preset.config.update_diff_values_to_child_config(config, extruder_id_name, extruder_variant_name, *key_set1, *key_set2);
-        }
-        else {
-            auto inherits_config2 = dynamic_cast<ConfigOptionString *>(inherits_config);
-            if ((inherits_config2 && !inherits_config2->value.empty())) {
-                out.errors.push_back((boost::format("can not find parent %1% for config %2%!") % inherits_config2->value % preset.file).str());
-                return out;
-            }
-            // We support custom root preset now
-            // Find a default preset for the config. The PrintPresetCollection provides different default preset based on the "printer_technology" field.
-            preset.config = default_preset.config;
-            preset.config.apply(std::move(config));
-            extend_default_config_length(preset.config, true, default_preset.config);
-        }
-
-        Preset::normalize(preset.config);
-        // Report configuration fields, which are misplaced into a wrong group.
-        std::string incorrect_keys = Preset::remove_invalid_keys(preset.config, default_preset.config);
-        if (!incorrect_keys.empty())
-            out.errors.push_back("Error in a preset file: The preset \"" + preset.file +
-                                 "\" contains the following incorrect keys: " + incorrect_keys + ", which were removed");
-
-        if (preset.type == Preset::TYPE_FILAMENT && preset.is_user() && preset.inherits().empty()) {
-            auto compatible_printers = dynamic_cast<ConfigOptionStrings *>(preset.config.option("compatible_printers", true));
-            if (compatible_printers && compatible_printers->values.empty()) {
-                size_t at_pos = canonical_name.find('@');
-                if (at_pos != std::string::npos && at_pos + 1 < canonical_name.length()) {
-                    compatible_printers->values.push_back(canonical_name.substr(at_pos + 1));
-                    out.save_compatible_printers = true;
-                }
-            }
-        }
-
-        preset.loaded = true;
-        out.complete = true;
-    } catch (const std::ifstream::failure &err) {
-        out.discard_file = true;
-        out.errors.push_back((boost::format("The user-config cannot be loaded: %1%. Reason: %2%") % preset.file % err.what()).str());
-        //throw Slic3r::RuntimeError(std::string("The selected preset cannot be loaded: ") + preset.file + "\n\tReason: " + err.what());
-    } catch (const std::runtime_error &err) {
-        out.discard_file = true;
-        out.errors.push_back((boost::format("Failed loading the user-config file: %1%. Reason: %2%") % preset.file % err.what()).str());
-        //throw Slic3r::RuntimeError(std::string("Failed loading the preset file: ") + preset.file + "\n\tReason: " + err.what());
-    }
-    out.install = true;
-    return out;
-}
-
-void PresetCollection::commit_user_preset(UserPresetLoad &&loaded, std::deque<Preset> &presets_loaded,
-                                          PresetsConfigSubstitutions &substitutions,
-                                          const std::function<void(Preset&)> &preset_loaded_fn,
-                                          bool read_only)
-{
-    Preset &preset = loaded.preset;
-    if (! loaded.info_file.empty())
-        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << " load info from: " << loaded.info_file << " and base_id: " << preset.base_id;
-    append(substitutions, std::move(loaded.substitutions));
-    for (const std::string &error : loaded.errors) {
-        ++m_errors;
-        BOOST_LOG_TRIVIAL(error) << error;
-    }
-    if (loaded.discard_file && !read_only) {
-        fs::path file_path(loaded.preset.file);
-        if (fs::exists(file_path))
-            fs::remove(file_path);
-        file_path.replace_extension(".info");
-        if (fs::exists(file_path))
-            fs::remove(file_path);
-    }
-    if (!loaded.install)
-        return;
-
-    if (loaded.complete) {
-        if (loaded.save_compatible_printers) {
-            // A filesystem error from the rewrite is counted, and the preset still loads.
-            try {
-                if (!read_only)
-                    preset.save(nullptr);
-                BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << " added compatible_printers for preset: " << preset.name;
-            } catch (const std::runtime_error &err) {
-                ++m_errors;
-                BOOST_LOG_TRIVIAL(error) << __FUNCTION__ << " can not write compatible_printers back to " << preset.file << ": " << err.what();
-            }
-        }
-        //BBS: add some workaround for previous incorrect settings
-        if ((!preset.setting_id.empty())&&(preset.setting_id == preset.base_id))
-            preset.setting_id.clear();
-        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << " load preset: " << preset.name << " and filament_id: " << preset.filament_id << " and base_id: " << preset.base_id;
-        //BBS: add config related logs
-        BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(", preset type %1%, name %2%, path %3%, is_system %4%, is_default %5% is_visible %6%")%Preset::get_type_string(m_type) %preset.name %preset.file %preset.is_system %preset.is_default %preset.is_visible;
-        // add alias for custom filament preset
-        set_custom_preset_alias(preset);
-    }
-
-    if (preset_loaded_fn != nullptr)
-        preset_loaded_fn(preset);
-
-    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << __LINE__ << " load config successful and preset name is:" << preset.name;
-    presets_loaded.emplace_back(std::move(preset));
-}
-
 // Load all presets found in dir_path.
 // Throws an exception on error.
 void PresetCollection::load_presets(
@@ -1902,8 +1706,6 @@ void PresetCollection::load_presets(
     std::set<std::string> *key_set1 = nullptr, *key_set2 = nullptr;
     Preset::get_extruder_names_and_keysets(m_type, extruder_id_name, extruder_variant_name, &key_set1, &key_set2);
 
-    struct UserPresetFile { fs::path path; std::string canonical_name; };
-    std::vector<UserPresetFile> files;
     //BBS: change to json format
     for (auto &dir_entry : boost::filesystem::directory_iterator(dir))
     {
@@ -1919,26 +1721,149 @@ void PresetCollection::load_presets(
                 BOOST_LOG_TRIVIAL(warning) << "Preset already present, not loading: " << canonical_name;
                 continue;
             }
-            files.push_back({ dir_entry.path(), std::move(canonical_name) });
+            try {
+                Preset preset(m_type, canonical_name, false);
+                preset.bundle_id = resolved_origin.bundle_id;
+                preset.file = dir_entry.path().string();
+                // Load the preset file, apply preset values on top of defaults.
+                try {
+                    fs::path idx_path(preset.file);
+                    idx_path.replace_extension(".info");
+                    if (fs::exists(idx_path)) {
+                        preset.load_info(idx_path.string());
+                    }
+                    DynamicPrintConfig config;
+                    //BBS: change to json format
+                    //ConfigSubstitutions config_substitutions = config.load_from_ini(preset.file, substitution_rule);
+                    std::map<std::string, std::string> key_values;
+                    std::string reason;
+                    ConfigSubstitutions config_substitutions = config.load_from_json(preset.file, substitution_rule, key_values, reason);
+                    if (! config_substitutions.empty())
+                        substitutions.push_back({ preset.name, m_type, PresetConfigSubstitutions::Source::UserFile, preset.file, std::move(config_substitutions) });
+                    if (!reason.empty()) {
+                        fs::path file_path(preset.file);
+                        if (!read_only && fs::exists(file_path))
+                            fs::remove(file_path);
+                        file_path.replace_extension(".info");
+                        if (!read_only && fs::exists(file_path))
+                            fs::remove(file_path);
+                        BOOST_LOG_TRIVIAL(error) << boost::format("parse config %1% failed")%preset.file;
+                        ++m_errors;
+                        continue;
+                    }
+
+                    std::string version_str = key_values[BBL_JSON_KEY_VERSION];
+                    boost::optional<Semver> version = Semver::parse(version_str);
+                    if (!version) continue;
+                    preset.version = *version;
+
+                    if (key_values.find(BBL_JSON_KEY_FILAMENT_ID) != key_values.end())
+                        preset.filament_id = key_values[BBL_JSON_KEY_FILAMENT_ID];
+                    if (key_values.find(BBL_JSON_KEY_DESCRIPTION) != key_values.end())
+                        preset.description = key_values[BBL_JSON_KEY_DESCRIPTION];
+                    if (key_values.find(BBL_JSON_KEY_INSTANTIATION) != key_values.end())
+                        preset.is_visible = key_values[BBL_JSON_KEY_INSTANTIATION] != "false";
+
+                    //Orca: find and use the inherit config as the base
+                    Preset* inherit_preset = nullptr;
+                    ConfigOption* inherits_config = config.option(BBL_JSON_KEY_INHERITS);
+
+                    // check inherits_config
+                    if (inherits_config) {
+                        ConfigOptionString * option_str = dynamic_cast<ConfigOptionString *> (inherits_config);
+                        std::string inherits_value = option_str->value;
+                        // Orca: try to find if the parent preset has been renamed
+                        inherit_preset = this->find_preset2(inherits_value);
+                        Preset::normalize_inherits(config, inherit_preset);
+                    } else {
+                        ;
+                    }
+                    const Preset& default_preset = this->default_preset_for(config);
+                    if (inherit_preset) {
+                        preset.config = inherit_preset->config;
+                        preset.filament_id = inherit_preset->filament_id;
+                        extend_default_config_length(config, false, {});
+                        preset.config.update_diff_values_to_child_config(config, extruder_id_name, extruder_variant_name, *key_set1, *key_set2);
+                    }
+                    else {
+                        auto inherits_config2 = dynamic_cast<ConfigOptionString *>(inherits_config);
+                        if ((inherits_config2 && !inherits_config2->value.empty())) {
+                            BOOST_LOG_TRIVIAL(error) << boost::format("can not find parent %1% for config %2%!")%inherits_config2->value %preset.file;
+                            ++m_errors;
+                            continue;
+                        }
+                        // We support custom root preset now
+                        // Find a default preset for the config. The PrintPresetCollection provides different default preset based on the "printer_technology" field.
+                        preset.config = default_preset.config;
+                        preset.config.apply(std::move(config));
+                        extend_default_config_length(preset.config, true, default_preset.config);
+                    }
+                    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << " load preset: " << name << " and filament_id: " << preset.filament_id << " and base_id: " << preset.base_id;
+
+                    Preset::normalize(preset.config);
+                    // Report configuration fields, which are misplaced into a wrong group.
+                    std::string incorrect_keys = Preset::remove_invalid_keys(preset.config, default_preset.config);
+                    if (!incorrect_keys.empty()) {
+                        ++m_errors;
+                        BOOST_LOG_TRIVIAL(error)
+                            << "Error in a preset file: The preset \"" << preset.file
+                            << "\" contains the following incorrect keys: " << incorrect_keys << ", which were removed";
+                    }
+
+                    if (preset.type == Preset::TYPE_FILAMENT && preset.is_user() && preset.inherits().empty()) {
+                        auto compatible_printers = dynamic_cast<ConfigOptionStrings *>(preset.config.option("compatible_printers", true));
+                        if (compatible_printers && compatible_printers->values.empty()) {
+                            size_t at_pos = name.find('@');
+                            if (at_pos != std::string::npos && at_pos + 1 < name.length()) {
+                                compatible_printers->values.push_back(name.substr(at_pos + 1));
+                                if (!read_only)
+                                    preset.save(nullptr);
+                                BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << " added compatible_printers for preset: " << name;
+                            }
                         }
                     }
 
-    resolve_then_commit<CNumericLocalesSetter>(files.size(),
-        [&](size_t i) {
-            return this->resolve_user_preset(files[i].path, files[i].canonical_name, resolved_origin, substitution_rule,
-                                             extruder_id_name, extruder_variant_name, key_set1, key_set2);
-        },
-        [&](size_t, UserPresetLoad &&loaded) {
-            // Committing can remove an unreadable preset's file, and a filesystem error
-            // there is reported without stopping the rest of the directory.
-            try {
-                this->commit_user_preset(std::move(loaded), presets_loaded, substitutions, preset_loaded_fn, read_only);
+                    preset.loaded = true;
+                    //BBS: add some workaround for previous incorrect settings
+                    if ((!preset.setting_id.empty())&&(preset.setting_id == preset.base_id))
+                        preset.setting_id.clear();
+                    //BBS: add config related logs
+                    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(", preset type %1%, name %2%, path %3%, is_system %4%, is_default %5% is_visible %6%")%Preset::get_type_string(m_type) %preset.name %preset.file %preset.is_system %preset.is_default %preset.is_visible;
+                    // add alias for custom filament preset
+                    set_custom_preset_alias(preset);
+                } catch (const std::ifstream::failure &err) {
+                    ++m_errors;
+                    BOOST_LOG_TRIVIAL(error) << boost::format("The user-config cannot be loaded: %1%. Reason: %2%")%preset.file %err.what();
+                    fs::path file_path(preset.file);
+                    if (!read_only && fs::exists(file_path))
+                        fs::remove(file_path);
+                    file_path.replace_extension(".info");
+                    if (!read_only && fs::exists(file_path))
+                        fs::remove(file_path);
+                    //throw Slic3r::RuntimeError(std::string("The selected preset cannot be loaded: ") + preset.file + "\n\tReason: " + err.what());
+                } catch (const std::runtime_error &err) {
+                    ++m_errors;
+                    BOOST_LOG_TRIVIAL(error) << boost::format("Failed loading the user-config file: %1%. Reason: %2%")%preset.file %err.what();
+                    //throw Slic3r::RuntimeError(std::string("Failed loading the preset file: ") + preset.file + "\n\tReason: " + err.what());
+                    fs::path file_path(preset.file);
+                    if (!read_only && fs::exists(file_path))
+                        fs::remove(file_path);
+                    file_path.replace_extension(".info");
+                    if (!read_only && fs::exists(file_path))
+                        fs::remove(file_path);
+                }
+
+                if (preset_loaded_fn != nullptr)
+                    preset_loaded_fn(preset);
+
+                presets_loaded.emplace_back(preset);
+                BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << __LINE__ << " load config successful and preset name is:" << preset.name;
             } catch (const std::runtime_error &err) {
                 errors_cummulative += err.what();
                 errors_cummulative += "\n";
             }
-        });
-
+        }
+    }
     if (presets_loaded.size() > 0)
         m_presets.insert(m_presets.end(), std::make_move_iterator(presets_loaded.begin()), std::make_move_iterator(presets_loaded.end()));
     sort_presets();
@@ -2671,6 +2596,20 @@ std::pair<Preset*, bool> PresetCollection::load_external_preset(
     const Semver                file_version,
     const std::string           filament_id)
 {
+    // Load the preset over a default preset, so that the missing fields are filled in from the default preset.
+    DynamicPrintConfig cfg(this->default_preset_for(combined_config).config);
+    // SoftFever: ignore print connection info from project
+    auto        keys = cfg.keys();
+    keys.erase(std::remove_if(keys.begin(), keys.end(),
+                              [](std::string &val) {
+                                return val == "print_host" || val == "print_host_webui" || val == "printhost_apikey" ||
+                                       val == "printhost_cafile" || val == "printhost_user" || val == "printhost_password" || val == "printhost_port";
+                              }),
+               keys.end());
+    cfg.apply_only(combined_config, keys, true);
+    std::string                 &inherits = Preset::inherits(cfg);
+
+    //add different settings check logic, replace the old system preset's default value with new system preset's default values
     std::deque<Preset>::iterator it       = this->find_preset_internal(original_name);
     bool                         found    = it != m_presets.end() && it->name == original_name;
     if (! found) {
@@ -2679,25 +2618,24 @@ std::pair<Preset*, bool> PresetCollection::load_external_preset(
         found = it != m_presets.end();
     }
 
-    t_config_option_keys keys;
-    DynamicPrintConfig cfg = Preset::load_external_config(m_type, this->default_preset_for(combined_config).config, combined_config, different_settings_list,
-        [this, &original_name, &path, found, it](const std::string &inherits) -> DynamicPrintConfig * {
-            if (!inherits.empty()) {
+    std::string extruder_id_name, extruder_variant_name;
+    std::set<std::string> *key_set1 = nullptr, *key_set2 = nullptr;
+    Preset::get_extruder_names_and_keysets(m_type, extruder_id_name, extruder_variant_name, &key_set1, &key_set2);
+
+    if (!inherits.empty() && (different_settings_list.size() > 0)) {
         auto iter = this->find_preset_internal(inherits);
         if (iter == m_presets.end() || iter->name != inherits)
             iter = this->find_preset_renamed(inherits);
-                if (iter == m_presets.end())
-                    return nullptr;
-                BOOST_LOG_TRIVIAL(info) << "load_external_preset" << boost::format(": change preset %1% inherit %2% 's value to %3% 's values")%original_name %inherits %path;
-                return &iter->config;
+        if (iter != m_presets.end()) {
+            //std::vector<std::string> dirty_options = cfg.diff(iter->config);
+            BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": change preset %1% inherit %2% 's value to %3% 's values")%original_name %inherits %path;
+            cfg.update_non_diff_values_to_base_config(iter->config, keys, different_settings_list, extruder_id_name, extruder_variant_name, *key_set1, *key_set2);
         }
-            if (found && it->is_system) {
-                BOOST_LOG_TRIVIAL(info) << "load_external_preset" << boost::format(": change preset %1% 's value to %2% 's values")%original_name %path;
-                return &it->config;
     }
-            return nullptr;
-        }, &keys);
-    std::string                 &inherits = Preset::inherits(cfg);
+    else if (found && it->is_system && (different_settings_list.size() > 0)) {
+        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": change preset %1% 's value to %2% 's values")%original_name %path;
+        cfg.update_non_diff_values_to_base_config(it->config, keys, different_settings_list, extruder_id_name, extruder_variant_name, *key_set1, *key_set2);
+    }
 
     //BBS: add config related logs
     BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(" enter, type %1% , path %2%, name %3%, original_name %4%, inherits %5%")%Preset::get_type_string(m_type) %path %name %original_name %inherits;
@@ -2889,18 +2827,6 @@ std::pair<Preset*, bool> PresetCollection::load_external_preset(
     return std::make_pair(&preset, false);
 }
 
-Preset& PresetCollection::append_preset(std::string &&path, const std::string &name, DynamicPrintConfig &&config)
-{
-    lock();
-    Preset &preset = m_presets.emplace_back(m_type, name, false);
-    preset.file = std::move(path);
-    preset.config = std::move(config);
-    preset.loaded = true;
-    preset.is_dirty = false;
-    unlock();
-    return preset;
-}
-
 Preset& PresetCollection::load_preset(const std::string &path, const std::string &name, DynamicPrintConfig &&config, bool select, Semver file_version)
 {
     lock();
@@ -3920,53 +3846,28 @@ bool PresetCollection::select_preset_by_name_strict(const std::string &name)
     return false;
 }
 
-std::vector<std::vector<std::string>> PresetCollection::merge_presets(const std::vector<PresetCollection*> &others, const VendorMap &new_vendors)
+// Merge one vendor's presets with the other vendor's presets, report duplicates.
+std::vector<std::string> PresetCollection::merge_presets(PresetCollection &&other, const VendorMap &new_vendors)
 {
-    auto less = [this](const Preset &a, const Preset &b) {
-        return m_type == Preset::TYPE_FILAMENT ? filament_preset_less(a, b) : a < b;
-    };
-    struct Incoming { Preset *preset; size_t source; };
-    auto incoming_less = [&less](const Incoming &a, const Incoming &b) { return less(*a.preset, *b.preset); };
-    // Each of `others` is sorted, so its presets form one sorted run.
-    std::vector<Incoming> incoming;
-    std::vector<size_t>   run_ends { 0 };
-    for (size_t source = 0; source < others.size(); ++ source) {
-        for (Preset &preset : others[source]->m_presets)
-            if (! preset.is_default && ! preset.is_external)
-                incoming.push_back({ &preset, source });
-        assert(std::is_sorted(incoming.begin() + run_ends.back(), incoming.end(), incoming_less));
-        run_ends.push_back(incoming.size());
-    }
-    // Merged pairwise and stably, so equal names stay in the order of `others`.
-    const size_t runs = others.size();
-    for (size_t width = 1; width < runs; width *= 2)
-        for (size_t i = 0; i + width < runs; i += 2 * width)
-            std::inplace_merge(incoming.begin() + run_ends[i], incoming.begin() + run_ends[i + width],
-                               incoming.begin() + run_ends[std::min(i + 2 * width, runs)], incoming_less);
-
-    std::vector<std::vector<std::string>> duplicates(others.size());
-    std::deque<Preset> merged;
-    auto own = m_presets.begin() + m_num_default_presets;
-    std::move(m_presets.begin(), own, std::back_inserter(merged));
-    // On equal names this collection's preset is kept, else the earliest of `others`,
-    // and each repeat is listed under the collection it came from.
-    for (auto next = incoming.begin(); own != m_presets.end() || next != incoming.end();) {
-        if (next == incoming.end() || (own != m_presets.end() && ! less(*next->preset, *own)))
-            merged.emplace_back(std::move(*own ++));
-        else {
-            Preset &preset = *(next ++)->preset;
+    std::vector<std::string> duplicates;
+    for (Preset &preset : other.m_presets) {
+        if (preset.is_default || preset.is_external)
+            continue;
+        Preset key(m_type, preset.name);
+        auto it = (m_type == Preset::TYPE_FILAMENT)
+            ? std::lower_bound(m_presets.begin() + m_num_default_presets, m_presets.end(), key, filament_preset_less)
+            : std::lower_bound(m_presets.begin() + m_num_default_presets, m_presets.end(), key);
+        if (it == m_presets.end() || it->name != preset.name) {
             if (preset.vendor != nullptr) {
                 // Re-assign a pointer to the vendor structure in the new PresetBundle.
                 auto it = new_vendors.find(preset.vendor->id);
                 assert(it != new_vendors.end());
                 preset.vendor = &it->second;
             }
-            merged.emplace_back(std::move(preset));
+            m_presets.emplace(it, std::move(preset));
+        } else
+            duplicates.emplace_back(std::move(preset.name));
     }
-        for (; next != incoming.end() && next->preset->name == merged.back().name; ++ next)
-            duplicates[next->source].emplace_back(next->preset->name);
-    }
-    m_presets = std::move(merged);
     return duplicates;
 }
 

src/libslic3r/Preset.hpp

@@ -403,15 +403,6 @@ public:
     std::string get_current_printer_type(PresetBundle *preset_bundle); // get current preset type
 
     static void get_extruder_names_and_keysets(Type type, std::string& extruder_id_name, std::string& extruder_variant_name, std::set<std::string>** p_key_set1, std::set<std::string>** p_key_set2);
-    // Config of a preset loaded from a project or config file: the project's values over the type's
-    // default preset config, without the print-host keys. When different_settings_list is not empty,
-    // every key not listed in it is then refreshed from the base system preset, which find_base returns
-    // for the project's "inherits" (nullptr when there is none), with the listed per-variant values
-    // mapped onto the base's extruder variants. keys, if given, receives the keys taken from the project.
-    static DynamicPrintConfig load_external_config(Type type, const DynamicPrintConfig &default_config, const DynamicPrintConfig &project_config,
-                                                   const std::set<std::string> &different_settings_list,
-                                                   const std::function<DynamicPrintConfig *(const std::string &inherits)> &find_base,
-                                                   t_config_option_keys *keys = nullptr);
     std::string get_printer_id() const { return vendor ? vendor->id : ""; }
 
     bool has_lidar(PresetBundle *preset_bundle);
@@ -454,10 +445,7 @@ public:
     static std::string                      remove_suffix_modified(const std::string& name);
     static void                             normalize(DynamicPrintConfig &config);
     // Report configuration fields, which are misplaced into a wrong group, remove them from the config.
-    // `added`, when given, is the diff applied over a copy of default_config, and only
-    // its keys are checked, since no other key can be missing from default_config.
-    static std::string                      remove_invalid_keys(DynamicPrintConfig &config, const DynamicPrintConfig &default_config,
-                                                                const DynamicPrintConfig *added = nullptr);
+    static std::string                      remove_invalid_keys(DynamicPrintConfig &config, const DynamicPrintConfig &default_config);
 
     // BBS: move constructor to public
     Preset(Type type, const std::string &name, bool is_default = false) : type(type), is_default(is_default), name(name) {}
@@ -813,8 +801,6 @@ public:
     // Return number of presets including the "- default -" preset.
     size_t          size() const                { return m_presets.size(); }
     bool            has_defaults_only() const   { return m_presets.size() <= m_num_default_presets; }
-    // How many presets this collection refused or repaired while loading.
-    int             error_count() const         { return m_errors; }
 
     // For Print / Filament presets, disable those, which are not compatible with the printer.
     template<typename PreferedCondition>
@@ -888,10 +874,8 @@ protected:
     // This is a temporary state, which shall be fixed immediately by the following step.
     bool            select_preset_by_name_strict(const std::string &name);
 
-    // Move the presets of `others` into this collection in one pass. A name this
-    // collection or an earlier one of `others` already has is left out, and reported
-    // in the list of the collection that repeats it.
-    std::vector<std::vector<std::string>> merge_presets(const std::vector<PresetCollection*> &others, const VendorMap &new_vendors);
+    // Merge one vendor's presets with the other vendor's presets, report duplicates.
+    std::vector<std::string> merge_presets(PresetCollection &&other, const VendorMap &new_vendors);
 
     // Update m_map_alias_to_profile_name from loaded system profiles.
 	void 			update_map_alias_to_profile_name();
@@ -906,43 +890,6 @@ protected:
     void            set_custom_preset_alias(Preset &preset);
 
 private:
-    // One preset file read and flattened against the presets already in this
-    // collection, before anything the collection shares has been touched.
-    struct UserPresetLoad
-    {
-        Preset      preset;
-        // Joins the collection. A file that threw partway still joins it, without
-        // the steps that did not run.
-        bool        install { false };
-        // The whole of the load ran, so the preset is ready to be aliased.
-        bool        complete { false };
-        // A filament preset that named no compatible printer and was given one from
-        // its name, which commit writes back to its file.
-        bool        save_compatible_printers { false };
-        // Unreadable, so commit removes it and its .info file.
-        bool        discard_file { false };
-        // The .info file read beside the preset, which commit logs.
-        std::string info_file;
-        // Counted and logged by commit, in the order the directory listed the files.
-        std::vector<std::string>   errors;
-        PresetsConfigSubstitutions substitutions;
-    };
-
-    // Read and flatten one preset file. It reads only, and resolves against the presets
-    // loaded before this pass, never another file of the same pass, so the files of a
-    // pass are independent of each other.
-    UserPresetLoad  resolve_user_preset(const boost::filesystem::path &file, const std::string &canonical_name,
-                                        const PresetOrigin &load_origin, ForwardCompatibilitySubstitutionRule substitution_rule,
-                                        const std::string &extruder_id_name, const std::string &extruder_variant_name,
-                                        std::set<std::string> *key_set1, std::set<std::string> *key_set2) const;
-
-    // Install one resolved preset. The collection, its alias maps, the error count
-    // and the preset files on disk are touched here and only here.
-    void            commit_user_preset(UserPresetLoad &&loaded, std::deque<Preset> &presets_loaded,
-                                       PresetsConfigSubstitutions &substitutions,
-                                       const std::function<void(Preset&)> &preset_loaded_fn,
-                                       bool read_only);
-
     std::string canonical_preset_name(const std::string &name, const PresetOrigin &load_origin = PresetOrigin()) const;
 
     // Comparator that sorts "Generic " prefixed presets before others, then alphabetically within each group.
@@ -954,10 +901,6 @@ private:
         return a.name < b.name;
     }
 
-    // Append a preset without keeping the collection sorted, for a caller installing
-    // many at once; find_preset() is unusable until sort_presets() runs.
-    Preset& append_preset(std::string &&path, const std::string &name, DynamicPrintConfig &&config);
-
     // Sort presets: filament presets use generic-first ordering, others sort alphabetically.
     void sort_presets() {
         if (m_type == Preset::TYPE_FILAMENT)

src/libslic3r/PresetBundle.hpp

@@ -15,7 +15,6 @@
 #include <unordered_map>
 #include <optional>
 #include <array>
-#include <atomic>
 #include <boost/filesystem/path.hpp>
 #include <unordered_set>
 
@@ -235,9 +234,6 @@ public:
 
     // ORCA: utility function to find the vendor for a given preset name
     static std::string find_preset_vendor(const std::string& preset_name, Preset::Type type);
-    // Keys a project keeps when its presets are loaded: those listed in its escaped
-    // "different_settings_to_system" entry for the preset, plus the preset bookkeeping keys.
-    static std::set<std::string> project_different_keys(const std::string &different_settings);
 
     PresetBundle();
     PresetBundle(const PresetBundle &rhs);
@@ -277,10 +273,6 @@ public:
                                     const std::string &source_file,
                                     ForwardCompatibilitySubstitutionRule compatibility_rule,
                                     std::string &error, bool allow_source_manifest = true);
-    // Resolve a system preset by name. The vendor tree is read from data_dir()/system when installed
-    // there, as the GUI reads it, and from the bundled profiles otherwise.
-    bool resolve_system_preset(DynamicPrintConfig &config, Preset::Type type, const std::string &name,
-                               ForwardCompatibilitySubstitutionRule compatibility_rule, std::string &error);
 
     // Load selections (current print, current filaments, current printer) from config.ini
     // This is done just once on application start up.
@@ -630,180 +622,36 @@ public:
     // default_filament_profile must resolve to a system filament.
     bool check_printer_default_materials() const;
 
-    // One vendor to load, and the directory it is installed in.
-    struct VendorSource
-    {
-        std::string             name;
-        boost::filesystem::path dir;
-    };
-
-    // Load `vendors` into this bundle, the Orca filament library directly and every
-    // other vendor in parallel into a bundle of its own that inherits from it, merged
-    // in the order given. A vendor that cannot be loaded has its error added to the
-    // returned text, or thrown in validation mode, and its name to `failed`; it is
-    // left out, except for the library, which keeps what it installed before the
-    // failure. Once `cancel` is set, no further vendor starts loading.
-    std::pair<PresetsConfigSubstitutions, std::string> load_vendors(const std::vector<VendorSource>& vendors,
-        ForwardCompatibilitySubstitutionRule compatibility_rule, bool allow_cache,
-        const std::atomic<bool>* cancel = nullptr, std::vector<std::string>* failed = nullptr);
+    // Merge one vendor's presets with the other vendor's presets, report duplicates.
+    // Public so per-vendor-cache consumers (e.g. the setup wizard) can assemble a
+    // bundle out of several per-vendor caches loaded into separate PresetBundle instances.
+    std::vector<std::string>    merge_presets(PresetBundle &&other);
 
 private:
-    // Move the presets and vendor profiles of `others` into this bundle, in one pass
-    // over each collection. A preset whose name this bundle or an earlier one of
-    // `others` already has is left out and listed under the bundle that repeats it.
-    std::vector<std::vector<std::string>> merge_presets(const std::vector<PresetBundle*> &others);
+    // Load one vendor from the preset cache installed in `dir`, judged against
+    // the vendor profile there. False, with this bundle left clean, when there
+    // is no usable cache and the vendor has to be parsed. This is how
+    // load_vendor_configs_from_json reads a cache.
+    bool load_vendor_cache(const boost::filesystem::path& dir, const std::string& vendor_name, const PresetBundle* base_bundle);
 
-    // What parsing one entry's JSON sub-file reported. Its errors and warnings are
-    // logged when the entry installs, so they come out in listing order with the
-    // entry's install errors, as parsing and installing one entry at a time leaves them.
-    struct EntryParse
-    {
-        ConfigSubstitutions      substitutions;
-        // Counted in the bundle's error count.
-        std::vector<std::string> errors;
-        std::vector<std::string> warnings;
-    };
-
-    // An EntryParse for each entry of the VendorCacheData list of the same name.
-    struct VendorParse
-    {
-        std::vector<EntryParse> process_entries;
-        std::vector<EntryParse> filament_entries;
-        std::vector<EntryParse> machine_entries;
-    };
-
-    // One vendor read from its cache or its JSONs by read_vendor, for
-    // install_vendor_read to install.
-    struct VendorRead
-    {
-        std::string                          dir;
-        std::string                          vendor_name;
-        LoadConfigBundleAttributes           flags;
-        ForwardCompatibilitySubstitutionRule compatibility_rule;
-        // The errors this bundle had counted before the read, which the cache stamp leaves out.
-        int                                  errors_at_entry { 0 };
-        // A whole-vendor load, which can read a cache and write one.
-        bool                                 cacheable { false };
-        // Read from the cache at cache_path, which install can still reject.
-        bool                                 from_cache { false };
-        std::string                          cache_path;
-        // Only the vendor profile was asked for.
-        bool                                 vendor_only { false };
-        VendorCacheData                      data;
-        // What each entry's JSON parse reported, and whether and with which version
-        // the cache is written once the entries install.
-        VendorParse                          parsed;
-        bool                                 will_cache { false };
-        std::string                          version;
-        // The sub-file the parse stopped at, its kind, why, and the errors it reported.
-        std::string                          reason;
-        std::string                          failed_subfile;
-        const char*                          failed_kind { nullptr };
-        std::vector<std::string>             failed_errors;
-    };
-
-    // Read a vendor into this bundle's vendor profiles and `data`, from its cache
-    // when one covers it, else from its JSONs; nothing is installed. Throws
-    // ConfigurationError when the vendor's own JSON cannot be parsed.
-    VendorRead read_vendor(const std::string& dir, const std::string& vendor_name, LoadConfigBundleAttributes flags,
-                           ForwardCompatibilitySubstitutionRule compatibility_rule, bool allow_cache);
-
-    // Parse the vendor's JSONs into `read`, up to the first sub-file that fails.
-    void parse_vendor_json(VendorRead& read);
-
-    // Install what read_vendor read, against base_bundle's filament library. A cache
-    // that cannot be installed is replaced by a parse of the JSONs. Throws
-    // ConfigurationError at the first entry that cannot be installed, or after
-    // installing the entries before a sub-file that could not be parsed.
-    std::pair<PresetsConfigSubstitutions, size_t> install_vendor_read(VendorRead&& read, const PresetBundle* base_bundle);
-
-    // Install a cache's entries. False, with this bundle left clean, when one of them
-    // cannot be installed.
-    bool install_vendor_cache(const std::string& cache_path, const std::string& vendor_name, VendorCacheData&& data,
-                              const PresetBundle* base_bundle);
-
-    // Log and count errors reported by a resolve or a parse.
-    void log_errors(const std::vector<std::string>& errors);
-
-    // The state of installing one collection of one vendor, which
-    // resolve_vendor_preset reads through a const reference and only
-    // commit_vendor_preset writes.
-    struct VendorInstall
-    {
-        // The directory holding <vendor_name>/, whose sub-paths the entries name.
-        std::string                path;
-        std::string                vendor_name;
-        const VendorProfile*       vendor_profile;
-        const PresetBundle*        base_bundle;
-        LoadConfigBundleAttributes flags;
-        PresetCollection*          presets;
-        // The Orca filament library, which keeps every config for other vendors to
-        // resolve against.
-        bool                       is_from_lib;
-        PresetsConfigSubstitutions* substitutions;
-        // The names some entry inherits / includes, the only ones whose configs /
-        // include diffs are looked up again.
-        std::set<std::string>      inherited;
-        std::set<std::string>      included;
-        std::map<std::string, DynamicPrintConfig> config_maps;
-        std::map<std::string, DynamicPrintConfig> include_maps;
-        std::map<std::string, std::string>        filament_id_maps;
-        std::unordered_set<std::string>           installed_names;
-        size_t                     count { 0 };
-    };
-
-    // Install a vendor's source-form entries, parsed from its JSON or read from its
-    // cache: processes, then filaments, then printers. Both loads go through here,
-    // so a cache-loaded bundle cannot come out different from a JSON-loaded one.
-    // `parsed` is given for entries parsed just now. `complete` says the entries
-    // are the vendor's whole lists; only then are the filament library's configs
-    // and filament ids left in m_config_maps and m_filament_id_maps. Returns the
-    // number of presets installed, and throws ConfigurationError at the first
-    // entry that cannot be installed.
-    size_t install_vendor(const std::string& path, const std::string& vendor_name, const PresetBundle* base_bundle,
-                          LoadConfigBundleAttributes flags, const VendorCacheData& entries,
-                          VendorParse* parsed, bool complete, PresetsConfigSubstitutions& substitutions);
-
-    // Install one collection's entries in the order they are listed.
-    void install_vendor_entries(VendorInstall& install, const std::vector<CachedPreset>& entries,
-                                std::vector<EntryParse>* parsed);
-
-    // One entry flattened against the preset it inherits, before anything this
-    // bundle shares has been touched.
-    struct PresetInstall
-    {
-        DynamicPrintConfig       config;
-        std::string              file_path;
-        // Empty when the preset is its own alias.
-        std::string              alias;
-        std::string              filament_id;
-        std::vector<std::string> renamed_from;
-        // Reported by commit, so resolving entries together leaves the log and
-        // the error count as one entry at a time produces them.
-        std::vector<std::string> errors;
-        // What a base states for the presets that include it, when it is retained.
-        std::optional<DynamicPrintConfig> included;
-        // The config kept for the entries that inherit this one, or for other
-        // vendors when this is the filament library.
-        std::optional<DynamicPrintConfig> retained;
-        // Not instantiated, so it contributes a config and no preset.
-        bool                     config_only { false };
-        // Non-empty when the entry is rejected, and says why.
-        std::string              reason;
-    };
-
-    // Flatten one entry against the config it inherits, from this collection's
-    // config_maps or base_bundle's filament library, with the include diffs it
-    // names layered in. It looks up nothing but the names the entry inherits and
-    // includes, and writes nothing.
-    PresetInstall resolve_vendor_preset(const CachedPreset& entry, const VendorInstall& install) const;
-
-    // Install a resolved entry. The collections, the maps in `install` and the
-    // error count are touched here and only here, one entry at a time.
-    // Presets are appended, so a repeated name is caught with `installed_names`,
-    // and the collection is sorted once every entry is in.
-    std::string commit_vendor_preset(const CachedPreset& entry, PresetInstall&& resolved,
-                                     ConfigSubstitutions&& substitutions, VendorInstall& install);
+    // Load one source-form preset entry into this bundle: resolve `inherits`
+    // and `include`, flatten, validate and register the preset. Returns the
+    // reason loading failed, empty on success. See the definition for the
+    // sharing contract between the JSON parse and the cache load.
+    // retain_configs / retain_includes, when non-null, name the only presets
+    // registered into config_maps / include_maps (a config copy each). The
+    // cache load passes the names its entries inherit / include — the only
+    // ones ever looked up again; the JSON parse retains all, not knowing what
+    // later subfiles name.
+    std::string load_vendor_preset(const CachedPreset& entry,
+        const std::string& path, const std::string& vendor_name,
+        const PresetBundle* base_bundle,
+        LoadConfigBundleAttributes flags,
+        ConfigSubstitutionContext& substitution_context, PresetsConfigSubstitutions& substitutions,
+        std::map<std::string, DynamicPrintConfig>& config_maps, std::map<std::string, DynamicPrintConfig>& include_maps,
+        std::map<std::string, std::string>& filament_id_maps,
+        PresetCollection* presets_collection, size_t& count, bool is_from_lib,
+        const std::set<std::string>* retain_configs = nullptr, const std::set<std::string>* retain_includes = nullptr);
 
     // Clear every collection's m_printer_hold_alias, which reset() leaves alone.
     void clear_printer_hold_aliases();
@@ -815,14 +663,13 @@ private:
     // Vendor trees loaded by resolve_preset_config's manifest path, so every preset
     // resolved through this bundle shares one load per source root and vendor. The
     // filament library is one such tree, shared by every vendor under its root.
-    // A tree read from its preset cache is kept apart: its presets carry no source file.
-    std::map<std::tuple<std::string, std::string, ForwardCompatibilitySubstitutionRule, bool>, std::unique_ptr<PresetBundle>>
+    std::map<std::tuple<std::string, std::string, ForwardCompatibilitySubstitutionRule>, std::unique_ptr<PresetBundle>>
         m_source_vendor_bundles;
 
     const PresetBundle *load_source_vendor(const boost::filesystem::path &root_dir,
                                            const std::string &vendor_id,
                                            ForwardCompatibilitySubstitutionRule compatibility_rule,
-                                           std::string &error, bool allow_cache = false);
+                                           std::string &error);
 
     // Orca: validation only - flag any printer with two or more compatible
     // filament presets sharing one filament_id (ambiguous AMS subtype match).

src/libslic3r/PresetCacheFormat.hpp

@@ -109,7 +109,7 @@ void skip_config(cereal::BinaryInputArchive& ar, const CacheDictionary& dict);
 
 // One preset as its JSON subfile states it: the config diff, the names of the
 // preset it inherits and the presets it includes, and the parse metadata —
-// everything PresetBundle::parse_vendor_json extracts and
+// everything the parse phase of load_vendor_configs_from_json extracts and
 // nothing it derives. Inheritance and includes are resolved when the entry is
 // installed, against whatever filament library is loaded then, so a cache
 // carries no other vendor's values and no other vendor's update can make it

src/libslic3r/Print.cpp

@@ -2439,18 +2439,12 @@ StringObjectException Print::validate(std::vector<StringObjectException> *warnin
             if (m_default_region_config.precise_outer_wall && m_default_region_config.wall_sequence != WallSequence::InnerOuter)
                 warn(L("The precise wall option will be ignored for outer-inner or inner-outer-inner wall sequences."), "precise_outer_wall");
 
-            // check adaptive pressure advance model of every extruder variant column of the used filaments
-            const std::vector<int> &self_index = m_config.filament_self_index.values;
-            const size_t pa_columns = std::max(m_config.adaptive_pressure_advance_model.size(), size_t(extruders.back()) + 1);
-            for (size_t column = 0; column < pa_columns; ++column) {
-                // filament_self_index maps a column to its filament once the filament arrays hold one column per variant
-                const unsigned int filament_id = self_index.size() == pa_columns ? self_index[column] - 1 : column;
-                if (!std::binary_search(extruders.begin(), extruders.end(), filament_id))
-                    continue;
-                if (m_config.adaptive_pressure_advance.get_at(column) &&
-                    m_config.enable_pressure_advance.get_at(column)) {
+            // check adaptive pressure advance model
+            for (unsigned int extruder_id : extruders) {
+                if (m_config.adaptive_pressure_advance.get_at(extruder_id) && 
+                    m_config.enable_pressure_advance.get_at(extruder_id)) {
                     
-                    const std::string pa_model = m_config.adaptive_pressure_advance_model.get_at(column);
+                    const std::string pa_model = m_config.adaptive_pressure_advance_model.get_at(extruder_id);
                     if (!pa_model.empty()) {
                         std::string validation_error = AdaptivePAProcessor::validate_adaptive_pa_model(pa_model);
                         if (!validation_error.empty()) {

src/libslic3r/PrintConfig.cpp

@@ -9403,10 +9403,6 @@ void PrintConfigDef::handle_legacy_composite(DynamicPrintConfig &config)
         }
         config.set_key_value("wiping_volumes_use_custom_matrix", new ConfigOptionBool(custom));
     }
-
-    // Orca: a config saved before a key joined filament_options_with_variant stores it once per filament
-    // rather than once per filament variant, and one exported by an older CLI may store a single value.
-    normalize_filament_values_to_variants(config);
 }
 
 const PrintConfigDef print_config_def;
@@ -9509,13 +9505,6 @@ std::set<std::string> filament_options_with_variant = {
     "filament_ironing_spacing",
     "filament_ironing_inset",
     "filament_ironing_speed",
-    // Orca: pressure advance
-    "enable_pressure_advance",
-    "pressure_advance",
-    "adaptive_pressure_advance",
-    "adaptive_pressure_advance_model",
-    "adaptive_pressure_advance_overhangs",
-    "adaptive_pressure_advance_bridges",
     "activate_air_filtration",
     "activate_air_filtration_during_print",
     "activate_air_filtration_on_completion",
@@ -10723,25 +10712,6 @@ void set_variant_override(ConfigOptionVectorBase &target, const ConfigOptionVect
     target.set_to_index(&source, indices, stride);
 }
 
-void normalize_filament_values_to_variants(DynamicPrintConfig &config)
-{
-    const auto *self_index = config.option<ConfigOptionInts>("filament_self_index");
-    if (self_index == nullptr || self_index->empty())
-        return;
-    const int filament_count = *std::max_element(self_index->values.begin(), self_index->values.end());
-    if (filament_count <= 0 || size_t(filament_count) >= self_index->size())
-        return;
-    for (const std::string &key : filament_options_with_variant) {
-        auto *opt = dynamic_cast<ConfigOptionVectorBase *>(config.option(key));
-        if (opt == nullptr || (opt->size() != size_t(filament_count) && opt->size() != 1))
-            continue;
-        std::unique_ptr<ConfigOption> per_filament(opt->clone());
-        // set_at() takes the first value for a filament past the end of a single-value vector
-        for (size_t variant = 0; variant < self_index->size(); ++variant)
-            opt->set_at(per_filament.get(), variant, self_index->values[variant] - 1);
-    }
-}
-
 
 //used for object/region config
 //use the smallest of multiple to single
@@ -12595,7 +12565,6 @@ OtherSlicingStatesConfigDef::OtherSlicingStatesConfigDef()
 
     new_def("initial_no_support_extruder", coInt, "Initial no support extruder", "Zero-based index of the first extruder used for printing without support. Same as initial_no_support_tool.");
     new_def("in_head_wrap_detect_zone", coBool, "In head wrap detect zone", "Indicates if the first layer overlaps with the head wrap zone.");
-    new_def("curr_bed_type", coString, "Current bed type", "Name of the currently selected bed plate type (e.g. 'Textured PEI Plate', 'Smooth High Temp Plate').");
 }
 
 PrintStatisticsConfigDef::PrintStatisticsConfigDef()

src/libslic3r/PrintConfig.hpp

@@ -884,11 +884,6 @@ extern std::set<std::string> empty_options;
 void set_variant_override(ConfigOptionVectorBase &target, const ConfigOptionVectorBase &source,
                           const std::vector<int> &variant_index, int stride = 1);
 
-// Orca: lays every filament_options_with_variant option out one value per filament variant, as
-// filament_self_index maps the variants to filaments. An option holding one value per filament, or a
-// single value, gives every variant of a filament that filament's value; other lengths are left alone.
-void normalize_filament_values_to_variants(DynamicPrintConfig &config);
-
 extern std::set<std::string> filament_dev_options;
 
 extern void update_static_print_config_from_dynamic(ConfigBase& config, const DynamicPrintConfig& dest_config, std::vector<int> variant_index, std::set<std::string>& key_set1, int stride = 1);

src/libslic3r/PrintObject.cpp

@@ -30,6 +30,7 @@
 
 #include <cstddef>
 #include <float.h>
+#include <array>
 #include <iterator>
 #include <mutex>
 #include <string>
@@ -42,6 +43,7 @@
 #include <boost/log/trivial.hpp>
 
 #include <tbb/parallel_for.h>
+#include <tbb/parallel_invoke.h>
 #include <tbb/spin_mutex.h>
 #include <tbb/concurrent_unordered_set.h>
 
@@ -1664,7 +1666,9 @@ void PrintObject::detect_surfaces_type()
     bool interface_shells = ! spiral_mode && m_config.interface_shells.value;
     size_t num_layers     = spiral_mode ? std::min(size_t(this->printing_region(0).config().bottom_shell_layers), m_layers.size()) : m_layers.size();
 
-    for (size_t region_id = 0; region_id < this->num_printing_regions(); ++ region_id) {
+    // The regions of a layer do not see each other here, and a layer cut through a fine relief takes far longer than the
+    // others, so the regions run next to each other instead of one after another, each still over all layers.
+    tbb::parallel_for(size_t(0), this->num_printing_regions(), [&](size_t region_id) {
         BOOST_LOG_TRIVIAL(debug) << "Detecting solid surfaces for region " << region_id << " in parallel - start";
 #ifdef SLIC3R_DEBUG_SLICE_PROCESSING
         for (Layer *layer : m_layers)
@@ -1722,7 +1726,7 @@ void PrintObject::detect_surfaces_type()
                     if (upper_layer) {
                         ExPolygons upper_slices = interface_shells ?
                             diff_ex(layerm_slices_surfaces, upper_layer->m_regions[region_id]->slices.surfaces, ApplySafetyOffset::Yes) :
-                            diff_ex(layerm_slices_surfaces, upper_layer->lslices, ApplySafetyOffset::Yes);
+                            diff_ex_by_piece(layerm_slices_surfaces, to_polygons(upper_layer->lslices), ApplySafetyOffset::Yes);
                         surfaces_append(top, opening_ex(upper_slices, offset), stTop);
                     } else {
                         // if no upper layer, all surfaces of this one are solid
@@ -1748,7 +1752,7 @@ void PrintObject::detect_surfaces_type()
                         surfaces_append(
                             bottom,
                             opening_ex(
-                                diff_ex(layerm_slices_surfaces, lower_layer->lslices, ApplySafetyOffset::Yes),
+                                diff_ex_by_piece(layerm_slices_surfaces, to_polygons(lower_layer->lslices), ApplySafetyOffset::Yes),
                                 offset),
                             surface_type_bottom_other);
                         // if user requested internal shells, we need to identify surfaces
@@ -1779,34 +1783,44 @@ void PrintObject::detect_surfaces_type()
                     // and top surfaces; let's do an intersection to discover them and consider them
                     // as bottom surfaces (to allow for bridge detection)
                     if (! top.empty() && ! bottom.empty()) {
-                        const auto cracks = intersection_ex(top, bottom);
+                        const auto cracks = intersection_ex_by_piece(to_expolygons(top), to_polygons(bottom));
                         if (!cracks.empty()) {
                             if (lower_layer) { // Only detect small cracks for non-first layer, because first layer should always be bottom
                                 const float small_crack_threshold = -layerm->flow(frExternalPerimeter).scaled_width() * 1.5;
                                 
+                                // Only the bottom surfaces near a crack can take part: one that contains it must contain its box,
+                                // and one whose box misses the grown crack is left unchanged by removing it. A layer cut through
+                                // a fine relief has thousands of both, which made this loop quadratic.
                                 for (const auto& crack : cracks) {
                                     if (offset_ex(crack, small_crack_threshold).empty()) {
                                         // For small cracks, if it's part of a large bottom surface, then it should be added to bottom as well
-                                        if (std::any_of(bottom.begin(), bottom.end(), [&crack, small_crack_threshold](const Surface& s) {
+                                        const BoundingBox crack_bbox = get_extents(crack);
+                                        if (std::any_of(bottom.begin(), bottom.end(), [&crack, &crack_bbox, small_crack_threshold](const Surface& s) {
                                                 const auto& se = s.expolygon;
-                                                return diff_ex(crack, se, ApplySafetyOffset::Yes).empty()
+                                                return get_extents(se).inflated(SCALED_EPSILON).contains(crack_bbox)
+                                                    && diff_ex(crack, se, ApplySafetyOffset::Yes).empty()
                                                     && se.area() > crack.area() * 2
                                                     && !offset_ex(diff_ex(se, crack), small_crack_threshold).empty();
                                         })) continue;
 
                                         // Crack too small, leave it as part of the top surface, remove it from bottom surfaces
+                                        const ExPolygons  grown_crack = offset_ex(crack, -small_crack_threshold);
+                                        const BoundingBox grown_bbox  = get_extents(grown_crack);
                                         Surfaces bot_tmp;
                                         for (auto& b : bottom) {
-                                            surfaces_append(bot_tmp, diff_ex(b.expolygon, offset_ex(crack, -small_crack_threshold)), b.surface_type);
+                                            if (get_extents(b.expolygon).overlap(grown_bbox))
+                                                surfaces_append(bot_tmp, diff_ex(b.expolygon, grown_crack), b.surface_type);
+                                            else
+                                                bot_tmp.emplace_back(std::move(b));
                                         }
                                         bottom = std::move(bot_tmp);
                                     }
                                 }
                             }
 
-                            Polygons top_polygons = to_polygons(std::move(top));
+                            ExPolygons top_expolygons = to_expolygons(std::move(top));
                             top.clear();
-                            surfaces_append(top, diff_ex(top_polygons, bottom), stTop);
+                            surfaces_append(top, diff_ex_by_piece(top_expolygons, to_polygons(bottom)), stTop);
                         }
                     }
 
@@ -1897,7 +1911,7 @@ void PrintObject::detect_surfaces_type()
                     {
                         Polygons topbottom = to_polygons(top);
                         polygons_append(topbottom, to_polygons(bottom));
-                        surfaces_append(surfaces_out, diff_ex(surfaces_prev_expolys, topbottom), stInternal);
+                        surfaces_append(surfaces_out, diff_ex_by_piece(surfaces_prev_expolys, topbottom), stInternal);
                     }
 
                     surfaces_append(surfaces_out, std::move(top));
@@ -2074,29 +2088,31 @@ void PrintObject::detect_surfaces_type()
                 }
             }
             );
-            // ==============================================================================================================
-            // === ORCA: Interim workaround - for now the new stInternalAfterExternalBridge surfaace is re-classified  ==============
-            // === back to a bottom bridge. As a starting point, this improves bridging reliability as it extrudes ==========
-            // === two external bridge layers. However, TODO: Implement a new surface type throughout the codebase ==========
-            // ==============================================================================================================
-            for (size_t region_id = 0; region_id < this->num_printing_regions(); ++region_id) {
-                tbb::parallel_for( tbb::blocked_range<size_t>(0, m_layers.size()), [this, region_id](const tbb::blocked_range<size_t> &range) {
-                    for (size_t idx_layer = range.begin(); idx_layer < range.end(); ++idx_layer) {
-                        Surfaces &surfs = m_layers[idx_layer]->m_regions[region_id]->slices.surfaces;
-                        for (Surface &s : surfs) {
-                            if (s.surface_type == stInternalAfterExternalBridge) {
-                                s.surface_type = stBottomBridge;
-                            }
-                        }
-                    }
-                }
-              );
-            }
         }
         // ==============================================================================================================
         // === ORCA: End of second external bridge layer changes  =======================================================
         // ==============================================================================================================
         
+    }); // for each this->print->region_count
+
+    // ==============================================================================================================
+    // === ORCA: Interim workaround - for now the new stInternalAfterExternalBridge surfaace is re-classified  ==============
+    // === back to a bottom bridge. As a starting point, this improves bridging reliability as it extrudes ==========
+    // === two external bridge layers. However, TODO: Implement a new surface type throughout the codebase ==========
+    // ==============================================================================================================
+    // Once all the regions have their second bridge layer, and before their slices are trimmed into fill surfaces below.
+    if ((this->config().enable_extra_bridge_layer.value == eblApplyToAll) || (this->config().enable_extra_bridge_layer.value == eblExternalBridgeOnly)) {
+        tbb::parallel_for(tbb::blocked_range<size_t>(0, m_layers.size()), [this](const tbb::blocked_range<size_t> &range) {
+            for (size_t idx_layer = range.begin(); idx_layer < range.end(); ++idx_layer)
+                for (LayerRegion *layerm : m_layers[idx_layer]->regions())
+                    for (Surface &s : layerm->slices.surfaces)
+                        if (s.surface_type == stInternalAfterExternalBridge)
+                            s.surface_type = stBottomBridge;
+        });
+        m_print->throw_if_canceled();
+    }
+
+    tbb::parallel_for(size_t(0), this->num_printing_regions(), [&](size_t region_id) {
         BOOST_LOG_TRIVIAL(debug) << "Detecting solid surfaces for region " << region_id << " - clipping in parallel - start";
         // Fill in layerm->fill_surfaces by trimming the layerm->slices by the cummulative layerm->fill_surfaces.
         tbb::parallel_for(
@@ -2113,7 +2129,7 @@ void PrintObject::detect_surfaces_type()
             });
         m_print->throw_if_canceled();
         BOOST_LOG_TRIVIAL(debug) << "Detecting solid surfaces for region " << region_id << " - clipping in parallel - end";
-    } // for each this->print->region_count
+    });
 
     // Mark the object to have the region slices classified (typed, which also means they are split based on whether they are supported, bridging, top layers etc.)
     m_typed_slices = true;
@@ -2180,8 +2196,10 @@ void PrintObject::process_external_surfaces()
 	    BOOST_LOG_TRIVIAL(debug) << "Collecting surfaces covered with extrusions in parallel - end";
 	}
 
-	for (size_t region_id = 0; region_id < this->num_printing_regions(); ++region_id) {
-        BOOST_LOG_TRIVIAL(debug) << "Processing external surfaces for region " << region_id << " in parallel - start";
+    BOOST_LOG_TRIVIAL(debug) << "Processing external surfaces in parallel - start";
+    // The regions of a layer do not see each other here, and a layer cut through a fine relief takes far longer than the
+    // others, so the regions run next to each other instead of one after another, each still over all layers.
+    tbb::parallel_for(size_t(0), this->num_printing_regions(), [this, &surfaces_covered](size_t region_id) {
         tbb::parallel_for(
             tbb::blocked_range<size_t>(0, m_layers.size()),
             [this, &surfaces_covered, region_id](const tbb::blocked_range<size_t>& range) {
@@ -2196,9 +2214,9 @@ void PrintObject::process_external_surfaces()
                 }
             }
         );
+    });
     m_print->throw_if_canceled();
-        BOOST_LOG_TRIVIAL(debug) << "Processing external surfaces for region " << region_id << " in parallel - end";
-    }
+    BOOST_LOG_TRIVIAL(debug) << "Processing external surfaces in parallel - end";
 }
 
 void PrintObject::discover_vertical_shells()
@@ -2237,10 +2255,10 @@ void PrintObject::discover_vertical_shells()
             // The "ensure vertical wall thickness" feature is not applicable to any of the regions. Quit.
             return;
         BOOST_LOG_TRIVIAL(debug) << "Discovering vertical shells in parallel - start : cache top / bottom";
-        //FIXME Improve the heuristics for a grain size.
-        size_t grain_size = std::max(num_layers / 16, size_t(1));
+        // One layer per task: on a layer cut through a fine relief the unions below take far longer than elsewhere, and a
+        // few such layers next to each other must not end up in one task.
         tbb::parallel_for(
-            tbb::blocked_range<size_t>(0, num_layers, grain_size),
+            tbb::blocked_range<size_t>(0, num_layers, 1),
             [this, &cache_top_botom_regions](const tbb::blocked_range<size_t>& range) {
                 const std::initializer_list<SurfaceType> surfaces_bottom { stBottom, stBottomBridge };
                 const size_t num_regions = this->num_printing_regions();
@@ -2248,26 +2266,38 @@ void PrintObject::discover_vertical_shells()
                     m_print->throw_if_canceled();
                     const Layer                      &layer = *m_layers[idx_layer];
                     DiscoverVerticalShellsCacheEntry &cache = cache_top_botom_regions[idx_layer];
-                    // Simulate single set of perimeters over all merged regions.
-                    float                             perimeter_offset = 0.f;
-                    float                             perimeter_min_spacing = FLT_MAX;
+                    const auto top_bottom_expansion = [&layer](size_t region_id) {
+                        return float(layer.m_regions[region_id]->flow(frSolidInfill).scaled_spacing()) * top_bottom_expansion_coeff;
+                    };
 #ifdef SLIC3R_DEBUG_SLICE_PROCESSING
                     static size_t debug_idx = 0;
                     ++ debug_idx;
 #endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
-                    for (size_t region_id = 0; region_id < num_regions; ++ region_id) {
-                        LayerRegion &layerm               = *layer.m_regions[region_id];
-                        float        top_bottom_expansion = float(layerm.flow(frSolidInfill).scaled_spacing()) * top_bottom_expansion_coeff;
-                        // Top surfaces.
-                        append(cache.top_surfaces, offset(layerm.slices.filter_by_type(stTop), top_bottom_expansion));
+                    // The top surfaces, the bottom surfaces and the holes are independent of each other.
+                    tbb::parallel_invoke(
+                        [&]() {
+                            for (size_t region_id = 0; region_id < num_regions; ++ region_id)
+                                append(cache.top_surfaces, offset(layer.m_regions[region_id]->slices.filter_by_type(stTop), top_bottom_expansion(region_id)));
 //                              append(cache.top_surfaces, offset(layerm.fill_surfaces.filter_by_type(stTop), top_bottom_expansion));
-                        // Bottom surfaces.
-                        append(cache.bottom_surfaces, offset(layerm.slices.filter_by_types(surfaces_bottom), top_bottom_expansion));
+                            // Save some computing time by reducing the number of polygons.
+                            cache.top_surfaces = union_(cache.top_surfaces);
+                        },
+                        [&]() {
+                            for (size_t region_id = 0; region_id < num_regions; ++ region_id)
+                                append(cache.bottom_surfaces, offset(layer.m_regions[region_id]->slices.filter_by_types(surfaces_bottom), top_bottom_expansion(region_id)));
 //                              append(cache.bottom_surfaces, offset(layerm.fill_surfaces.filter_by_types(surfaces_bottom), top_bottom_expansion));
+                            cache.bottom_surfaces = union_(cache.bottom_surfaces);
+                        },
+                        [&]() {
+                            // Simulate single set of perimeters over all merged regions.
+                            float perimeter_offset      = 0.f;
+                            float perimeter_min_spacing = FLT_MAX;
+                            for (size_t region_id = 0; region_id < num_regions; ++ region_id) {
+                                const LayerRegion &layerm = *layer.m_regions[region_id];
                                 // Calculate the maximum perimeter offset as if the slice was extruded with a single extruder only.
                                 // First find the maxium number of perimeters per region slice.
                                 unsigned int perimeters = 0;
-                        for (Surface &s : layerm.slices.surfaces)
+                                for (const Surface &s : layerm.slices.surfaces)
                                     perimeters = std::max<unsigned int>(perimeters, s.extra_perimeters);
                                 perimeters += layerm.region().config().wall_loops.value;
                                 // Then calculate the infill offset.
@@ -2280,9 +2310,6 @@ void PrintObject::discover_vertical_shells()
                                 }
                                 polygons_append(cache.holes, to_polygons(layerm.fill_expolygons));
                             }
-                    // Save some computing time by reducing the number of polygons.
-                    cache.top_surfaces    = union_(cache.top_surfaces);
-                    cache.bottom_surfaces = union_(cache.bottom_surfaces);
                             // For a multi-material print, simulate perimeter / infill split as if only a single extruder has been used for the whole print.
                             if (perimeter_offset > 0.) {
                                 // The layer.lslices are forced to merge by expanding them first.
@@ -2298,106 +2325,32 @@ void PrintObject::discover_vertical_shells()
 #endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
                             }
                             cache.holes = union_(cache.holes);
+                        });
                 }
             });
         m_print->throw_if_canceled();
         BOOST_LOG_TRIVIAL(debug) << "Discovering vertical shells in parallel - end : cache top / bottom";
     }
 
-    for (size_t region_id = 0; region_id < this->num_printing_regions(); ++ region_id) {
-        const PrintRegion &region = this->printing_region(region_id);
-        if (region.config().ensure_vertical_shell_thickness.value != evstAll )
-            // This region will be handled by discover_horizontal_shells().
-            continue;
-
-        //FIXME Improve the heuristics for a grain size.
-        size_t grain_size = std::max(num_layers / 16, size_t(1));
-
-        if (! top_bottom_surfaces_all_regions) {
-            // This is either a single material print, or a multi-material print and interface_shells are enabled, meaning that the vertical shell thickness
-            // is calculated over a single material.
-            BOOST_LOG_TRIVIAL(debug) << "Discovering vertical shells for region " << region_id << " in parallel - start : cache top / bottom";
-            tbb::parallel_for(
-                tbb::blocked_range<size_t>(0, num_layers, grain_size),
-                [this, region_id, &cache_top_botom_regions](const tbb::blocked_range<size_t>& range) {
-                    const std::initializer_list<SurfaceType> surfaces_bottom { stBottom, stBottomBridge };
-                    for (size_t idx_layer = range.begin(); idx_layer < range.end(); ++ idx_layer) {
-                        m_print->throw_if_canceled();
-                        Layer       &layer                = *m_layers[idx_layer];
-                        LayerRegion &layerm               = *layer.m_regions[region_id];
-                        float        top_bottom_expansion = float(layerm.flow(frSolidInfill).scaled_spacing()) * top_bottom_expansion_coeff;
-                        // Top surfaces.
-                        auto &cache = cache_top_botom_regions[idx_layer];
-                        cache.top_surfaces = offset(layerm.slices.filter_by_type(stTop), top_bottom_expansion);
-//                        append(cache.top_surfaces, offset(layerm.fill_surfaces.filter_by_type(stTop), top_bottom_expansion));
-                        // Bottom surfaces.
-                        cache.bottom_surfaces = offset(layerm.slices.filter_by_types(surfaces_bottom), top_bottom_expansion);
-//                        append(cache.bottom_surfaces, offset(layerm.fill_surfaces.filter_by_types(surfaces_bottom), top_bottom_expansion));
-                        // Holes over all regions. Only collect them once, they are valid for all region_id iterations.
-                        if (cache.holes.empty()) {
-                            for (size_t region_id = 0; region_id < layer.regions().size(); ++ region_id)
-                                polygons_append(cache.holes, to_polygons(layer.regions()[region_id]->fill_expolygons));
-                        }
-                    }
-                });
-            m_print->throw_if_canceled();
-            BOOST_LOG_TRIVIAL(debug) << "Discovering vertical shells for region " << region_id << " in parallel - end : cache top / bottom";
-        }
-
-        BOOST_LOG_TRIVIAL(debug) << "Discovering vertical shells for region " << region_id << " in parallel - start : ensure vertical wall thickness";
-        grain_size = 1;
-        tbb::parallel_for(
-            tbb::blocked_range<size_t>(0, num_layers, grain_size),
-            [this, region_id, &cache_top_botom_regions]
-            (const tbb::blocked_range<size_t>& range) {
-                // printf("discover_vertical_shells from %d to %d\n", range.begin(), range.end());
-                for (size_t idx_layer = range.begin(); idx_layer < range.end(); ++ idx_layer) {
-                    m_print->throw_if_canceled();
-#ifdef SLIC3R_DEBUG_SLICE_PROCESSING
-        			static size_t debug_idx = 0;
-        			++ debug_idx;
-#endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
-
-                    Layer       	        *layer          = m_layers[idx_layer];
-                    LayerRegion 	        *layerm         = layer->m_regions[region_id];
-                    const PrintRegionConfig &region_config  = layerm->region().config();
-
-#ifdef SLIC3R_DEBUG_SLICE_PROCESSING
-                    layerm->export_region_slices_to_svg_debug("3_discover_vertical_shells-initial");
-                    layerm->export_region_fill_surfaces_to_svg_debug("3_discover_vertical_shells-initial");
-#endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
-
-                    Flow         solid_infill_flow   = layerm->flow(frSolidInfill);
-                    coord_t      infill_line_spacing = solid_infill_flow.scaled_spacing();
-                    // Find a union of perimeters below / above this surface to guarantee a minimum shell thickness.
+    // With one top/bottom cache for all regions, the shell and hole accumulation in the loop below depends on nothing
+    // region-specific but the shell settings and the external perimeter spacing, so a region sharing them with an earlier
+    // one reuses its result instead of repeating it: that accumulation is a union over several layers of top/bottom
+    // surfaces, and a multi-material print has a region per filament.
+    using AccumulationKey = std::array<double, 5>;
+    struct ShellAccumulation
+    {
+        AccumulationKey key;
         Polygons        shell;
         Polygons        holes;
-#ifdef SLIC3R_DEBUG_SLICE_PROCESSING
-                    ExPolygons shell_ex;
-#endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
-                    float min_perimeter_infill_spacing = float(infill_line_spacing) * 1.05f;
-#if 0
-// #ifdef SLIC3R_DEBUG_SLICE_PROCESSING
-                    {
-        				Slic3r::SVG svg_cummulative(debug_out_path("discover_vertical_shells-perimeters-before-union-run%d.svg", debug_idx), this->bounding_box());
-                        for (int n = (int)idx_layer - n_extra_bottom_layers; n <= (int)idx_layer + n_extra_top_layers; ++ n) {
-                            if (n < 0 || n >= (int)m_layers.size())
-                                continue;
-                            ExPolygons &expolys = m_layers[n]->perimeter_expolygons;
-                            for (size_t i = 0; i < expolys.size(); ++ i) {
-        						Slic3r::SVG svg(debug_out_path("discover_vertical_shells-perimeters-before-union-run%d-layer%d-expoly%d.svg", debug_idx, n, i), get_extents(expolys[i]));
-                                svg.draw(expolys[i]);
-                                svg.draw_outline(expolys[i].contour, "black", scale_(0.05));
-                                svg.draw_outline(expolys[i].holes, "blue", scale_(0.05));
-                                svg.Close();
-
-                                svg_cummulative.draw(expolys[i]);
-                                svg_cummulative.draw_outline(expolys[i].contour, "black", scale_(0.05));
-                                svg_cummulative.draw_outline(expolys[i].holes, "blue", scale_(0.05));
-                            }
-                        }
-                    }
-#endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
+    };
+    const auto accumulation_key = [](const PrintRegionConfig &region_config, const LayerRegion *layerm) {
+        return AccumulationKey{ double(region_config.top_shell_layers.value), region_config.top_shell_thickness.value,
+                                double(region_config.bottom_shell_layers.value), region_config.bottom_shell_thickness.value,
+                                double(layerm->flow(frExternalPerimeter).scaled_spacing()) };
+    };
+    const auto accumulate_shell = [this, &cache_top_botom_regions](size_t idx_layer, const PrintRegionConfig &region_config,
+                                                                   const LayerRegion *layerm, Polygons &shell, Polygons &holes) {
+        const Layer *layer = m_layers[idx_layer];
     			        polygons_append(holes, cache_top_botom_regions[idx_layer].holes);
                         auto combine_holes = [&holes](const Polygons &holes2) {
                             if (holes.empty() || holes2.empty())
@@ -2472,6 +2425,141 @@ void PrintObject::discover_vertical_shells()
                                     (i > ibottom || bottom_z - m_layers[i]->print_z < region_config.bottom_shell_thickness - EPSILON))
                                     combine_holes(cache_top_botom_regions[i].holes);
     	                }
+    };
+    std::vector<std::vector<ShellAccumulation>> shell_accumulations(top_bottom_surfaces_all_regions ? num_layers : 0);
+    if (! shell_accumulations.empty()) {
+        // Every (layer, key) pair is accumulated once, before the regions, so that nothing in the loop below is shared
+        // between them and they can run next to each other.
+        std::vector<std::array<size_t, 3>> todo; // layer, its slot, a region holding the key
+        for (size_t idx_layer = 0; idx_layer < num_layers; ++ idx_layer) {
+            std::vector<ShellAccumulation> &accumulations = shell_accumulations[idx_layer];
+            for (size_t region_id = 0; region_id < this->num_printing_regions(); ++ region_id) {
+                if (this->printing_region(region_id).config().ensure_vertical_shell_thickness.value != evstAll)
+                    continue;
+                const LayerRegion    *layerm = m_layers[idx_layer]->m_regions[region_id];
+                const AccumulationKey key    = accumulation_key(layerm->region().config(), layerm);
+                if (std::none_of(accumulations.begin(), accumulations.end(), [&key](const ShellAccumulation &a) { return a.key == key; })) {
+                    todo.push_back({ idx_layer, accumulations.size(), region_id });
+                    accumulations.push_back({ key, {}, {} });
+                }
+            }
+        }
+        tbb::parallel_for(size_t(0), todo.size(), [this, &todo, &shell_accumulations, &accumulate_shell](size_t i) {
+            m_print->throw_if_canceled();
+            const LayerRegion *layerm = m_layers[todo[i][0]]->m_regions[todo[i][2]];
+            ShellAccumulation &out    = shell_accumulations[todo[i][0]][todo[i][1]];
+            accumulate_shell(todo[i][0], layerm->region().config(), layerm, out.shell, out.holes);
+        });
+        m_print->throw_if_canceled();
+    }
+
+    const auto process_region = [&](size_t region_id) {
+        const PrintRegion &region = this->printing_region(region_id);
+        if (region.config().ensure_vertical_shell_thickness.value != evstAll )
+            // This region will be handled by discover_horizontal_shells().
+            return;
+
+        //FIXME Improve the heuristics for a grain size.
+        size_t grain_size = std::max(num_layers / 16, size_t(1));
+
+        if (! top_bottom_surfaces_all_regions) {
+            // This is either a single material print, or a multi-material print and interface_shells are enabled, meaning that the vertical shell thickness
+            // is calculated over a single material.
+            BOOST_LOG_TRIVIAL(debug) << "Discovering vertical shells for region " << region_id << " in parallel - start : cache top / bottom";
+            tbb::parallel_for(
+                tbb::blocked_range<size_t>(0, num_layers, grain_size),
+                [this, region_id, &cache_top_botom_regions](const tbb::blocked_range<size_t>& range) {
+                    const std::initializer_list<SurfaceType> surfaces_bottom { stBottom, stBottomBridge };
+                    for (size_t idx_layer = range.begin(); idx_layer < range.end(); ++ idx_layer) {
+                        m_print->throw_if_canceled();
+                        Layer       &layer                = *m_layers[idx_layer];
+                        LayerRegion &layerm               = *layer.m_regions[region_id];
+                        float        top_bottom_expansion = float(layerm.flow(frSolidInfill).scaled_spacing()) * top_bottom_expansion_coeff;
+                        // Top surfaces.
+                        auto &cache = cache_top_botom_regions[idx_layer];
+                        cache.top_surfaces = offset(layerm.slices.filter_by_type(stTop), top_bottom_expansion);
+//                        append(cache.top_surfaces, offset(layerm.fill_surfaces.filter_by_type(stTop), top_bottom_expansion));
+                        // Bottom surfaces.
+                        cache.bottom_surfaces = offset(layerm.slices.filter_by_types(surfaces_bottom), top_bottom_expansion);
+//                        append(cache.bottom_surfaces, offset(layerm.fill_surfaces.filter_by_types(surfaces_bottom), top_bottom_expansion));
+                        // Holes over all regions. Only collect them once, they are valid for all region_id iterations.
+                        if (cache.holes.empty()) {
+                            for (size_t region_id = 0; region_id < layer.regions().size(); ++ region_id)
+                                polygons_append(cache.holes, to_polygons(layer.regions()[region_id]->fill_expolygons));
+                        }
+                    }
+                });
+            m_print->throw_if_canceled();
+            BOOST_LOG_TRIVIAL(debug) << "Discovering vertical shells for region " << region_id << " in parallel - end : cache top / bottom";
+        }
+
+        BOOST_LOG_TRIVIAL(debug) << "Discovering vertical shells for region " << region_id << " in parallel - start : ensure vertical wall thickness";
+        grain_size = 1;
+        tbb::parallel_for(
+            tbb::blocked_range<size_t>(0, num_layers, grain_size),
+            [this, region_id, &shell_accumulations, &accumulation_key, &accumulate_shell]
+            (const tbb::blocked_range<size_t>& range) {
+                // printf("discover_vertical_shells from %d to %d\n", range.begin(), range.end());
+                for (size_t idx_layer = range.begin(); idx_layer < range.end(); ++ idx_layer) {
+                    m_print->throw_if_canceled();
+#ifdef SLIC3R_DEBUG_SLICE_PROCESSING
+        			static size_t debug_idx = 0;
+        			++ debug_idx;
+#endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
+
+                    Layer       	        *layer          = m_layers[idx_layer];
+                    LayerRegion 	        *layerm         = layer->m_regions[region_id];
+                    const PrintRegionConfig &region_config  = layerm->region().config();
+
+#ifdef SLIC3R_DEBUG_SLICE_PROCESSING
+                    layerm->export_region_slices_to_svg_debug("3_discover_vertical_shells-initial");
+                    layerm->export_region_fill_surfaces_to_svg_debug("3_discover_vertical_shells-initial");
+#endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
+
+                    Flow         solid_infill_flow   = layerm->flow(frSolidInfill);
+                    coord_t      infill_line_spacing = solid_infill_flow.scaled_spacing();
+                    // Find a union of perimeters below / above this surface to guarantee a minimum shell thickness.
+                    Polygons shell;
+                    Polygons holes;
+#ifdef SLIC3R_DEBUG_SLICE_PROCESSING
+                    ExPolygons shell_ex;
+#endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
+                    float min_perimeter_infill_spacing = float(infill_line_spacing) * 1.05f;
+#if 0
+// #ifdef SLIC3R_DEBUG_SLICE_PROCESSING
+                    {
+        				Slic3r::SVG svg_cummulative(debug_out_path("discover_vertical_shells-perimeters-before-union-run%d.svg", debug_idx), this->bounding_box());
+                        for (int n = (int)idx_layer - n_extra_bottom_layers; n <= (int)idx_layer + n_extra_top_layers; ++ n) {
+                            if (n < 0 || n >= (int)m_layers.size())
+                                continue;
+                            ExPolygons &expolys = m_layers[n]->perimeter_expolygons;
+                            for (size_t i = 0; i < expolys.size(); ++ i) {
+        						Slic3r::SVG svg(debug_out_path("discover_vertical_shells-perimeters-before-union-run%d-layer%d-expoly%d.svg", debug_idx, n, i), get_extents(expolys[i]));
+                                svg.draw(expolys[i]);
+                                svg.draw_outline(expolys[i].contour, "black", scale_(0.05));
+                                svg.draw_outline(expolys[i].holes, "blue", scale_(0.05));
+                                svg.Close();
+
+                                svg_cummulative.draw(expolys[i]);
+                                svg_cummulative.draw_outline(expolys[i].contour, "black", scale_(0.05));
+                                svg_cummulative.draw_outline(expolys[i].holes, "blue", scale_(0.05));
+                            }
+                        }
+                    }
+#endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
+                    const AccumulationKey key = accumulation_key(region_config, layerm);
+                    const ShellAccumulation *reused = shell_accumulations.empty() ? nullptr :
+                        [&]() -> const ShellAccumulation * {
+                            for (const ShellAccumulation &a : shell_accumulations[idx_layer])
+                                if (a.key == key)
+                                    return &a;
+                            return nullptr;
+                        }();
+                    if (reused != nullptr) {
+                        shell = reused->shell;
+                        holes = reused->holes;
+                    } else
+                        accumulate_shell(idx_layer, region_config, layerm, shell, holes);
 #ifdef SLIC3R_DEBUG_SLICE_PROCESSING
                     {
         				Slic3r::SVG svg(debug_out_path("discover_vertical_shells-perimeters-before-union-%d.svg", debug_idx), get_extents(shell));
@@ -2565,11 +2653,8 @@ void PrintObject::discover_vertical_shells()
                         Polygons object_volume;
                         Polygons internal_volume;
                         {
-                            Polygons shrinked_bottom_slice = idx_layer > 0 ? to_polygons(m_layers[idx_layer - 1]->lslices) : Polygons{};
-                            Polygons shrinked_upper_slice  = (idx_layer + 1) < m_layers.size() ?
-                                                                 to_polygons(m_layers[idx_layer + 1]->lslices) :
-                                                                 Polygons{};
-                            object_volume = intersection(shrinked_bottom_slice, shrinked_upper_slice);
+                            if (idx_layer > 0 && idx_layer + 1 < m_layers.size())
+                                object_volume = to_polygons(intersection_ex_by_piece(m_layers[idx_layer - 1]->lslices, to_polygons(m_layers[idx_layer + 1]->lslices)));
                             internal_volume = closing(polygonsInternal, SCALED_EPSILON);
                         }
 
@@ -2580,15 +2665,34 @@ void PrintObject::discover_vertical_shells()
                         //      the in-model condition is there due to small sloping surfaces, e.g. top of the hull of the benchy
                         //   2. the area does not fully cover an internal polygon
                         //         This is there mainly for a very thin parts, where the solid layers would be missing if the part area is quite small
+                        // Both tests below compare a small piece against the whole layer. Done literally, that is
+                        // quadratic in the number of pieces, which is what a layer split up by colour painting has,
+                        // so each is restricted to the part of the layer near the piece with an identical result:
+                        // object_volume is clipped to the piece's box, and only the internal polygons whose box meets
+                        // the expanded piece take part in the count, since the others pass through the difference
+                        // unchanged and add the same number to both sides of it.
+                        std::vector<BoundingBox> internal_bboxes;
+                        internal_bboxes.reserve(internal_volume.size());
+                        for (const Polygon &poly : internal_volume)
+                            internal_bboxes.emplace_back(get_extents(poly));
                         regularized_shell.erase(std::remove_if(regularized_shell.begin(), regularized_shell.end(),
-                                                               [&internal_volume, &min_perimeter_infill_spacing,
+                                                               [&internal_volume, &internal_bboxes, &min_perimeter_infill_spacing,
                                                                 &object_volume](const ExPolygon &p) {
-                                                                   return (p.area() < min_perimeter_infill_spacing * scaled(1.5) ||
+                                                                   const bool small = p.area() < min_perimeter_infill_spacing * scaled(1.5) ||
                                                                                       (p.area() < min_perimeter_infill_spacing * scaled(8.0) &&
-                                                                            diff(to_polygons(p), object_volume).empty())) &&
-                                                                          diff(internal_volume,
-                                                                               expand(to_polygons(p), min_perimeter_infill_spacing))
-                                                                                  .size() >= internal_volume.size();
+                                                                                       diff(to_polygons(p),
+                                                                                            ClipperUtils::clip_clipper_polygons_with_subject_bbox(
+                                                                                                object_volume, get_extents(p).inflated(SCALED_EPSILON)))
+                                                                                           .empty());
+                                                                   if (!small)
+                                                                       return false;
+                                                                   const Polygons    expanded = expand(to_polygons(p), min_perimeter_infill_spacing);
+                                                                   const BoundingBox bbox     = get_extents(expanded);
+                                                                   Polygons          nearby;
+                                                                   for (size_t i = 0; i < internal_volume.size(); ++i)
+                                                                       if (internal_bboxes[i].overlap(bbox))
+                                                                           nearby.emplace_back(internal_volume[i]);
+                                                                   return diff(nearby, expanded).size() >= nearby.size();
                                                                }),
                                                 regularized_shell.end());
                     }
@@ -2610,8 +2714,9 @@ void PrintObject::discover_vertical_shells()
 #endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
 
                     // Trim the internal & internalvoid by the shell.
-                    Slic3r::ExPolygons new_internal = diff_ex(layerm->fill_surfaces.filter_by_type(stInternal), regularized_shell);
-                    Slic3r::ExPolygons new_internal_void = diff_ex(layerm->fill_surfaces.filter_by_type(stInternalVoid), regularized_shell);
+                    const Polygons     regularized_shell_polygons = to_polygons(regularized_shell);
+                    Slic3r::ExPolygons new_internal = diff_ex_by_piece(to_expolygons(layerm->fill_surfaces.filter_by_type(stInternal)), regularized_shell_polygons);
+                    Slic3r::ExPolygons new_internal_void = diff_ex_by_piece(to_expolygons(layerm->fill_surfaces.filter_by_type(stInternalVoid)), regularized_shell_polygons);
 
 #ifdef SLIC3R_DEBUG_SLICE_PROCESSING
                     {
@@ -2638,7 +2743,15 @@ void PrintObject::discover_vertical_shells()
 			layerm->export_region_fill_surfaces_to_svg_debug("3_discover_vertical_shells-final");
 		}
 #endif /* SLIC3R_DEBUG_SLICE_PROCESSING */
-    } // for each region
+    }; // for each region
+    if (top_bottom_surfaces_all_regions)
+        // Nothing is shared between the regions, and a layer cut through a fine relief takes far longer than the others,
+        // so they run next to each other instead of one after another.
+        tbb::parallel_for(size_t(0), this->num_printing_regions(), process_region);
+    else
+        // Here every region fills the one top/bottom cache with its own surfaces first.
+        for (size_t region_id = 0; region_id < this->num_printing_regions(); ++ region_id)
+            process_region(region_id);
 } // void PrintObject::discover_vertical_shells()
 
 // #define DEBUG_BRIDGE_OVER_INFILL
@@ -3159,6 +3272,16 @@ void PrintObject::bridge_over_infill()
                 vertical_lines[i].b = Point{x, y_max};
             }
 
+            // The vertical lines only span the bridged area's x range, so anchors entirely outside it can never be
+            // hit. Leaving them out gives the same intersections without building a tree over the whole layer's
+            // boundary for every bridge.
+            const coord_t scan_x_min = bb_x.min.x();
+            const coord_t scan_x_max = bb_x.min.x() + coord_t(n_vlines) * scan_spacing;
+            anchors.erase(std::remove_if(anchors.begin(), anchors.end(),
+                                         [scan_x_min, scan_x_max](const Line &l) {
+                                             return std::max(l.a.x(), l.b.x()) < scan_x_min || std::min(l.a.x(), l.b.x()) > scan_x_max;
+                                         }),
+                          anchors.end());
             auto anchors_and_walls_tree = AABBTreeLines::LinesDistancer<Line>{std::move(anchors)};
             auto bridged_area_tree      = AABBTreeLines::LinesDistancer<Line>{to_lines(bridged_area)};
 
@@ -3403,28 +3526,63 @@ void PrintObject::bridge_over_infill()
 
                 std::vector<CandidateSurface> expanded_surfaces;
                 expanded_surfaces.reserve(surfaces_by_layer[lidx].size());
+                // The expanded fill boundary depends only on the bridging flow, and total_fill_area is not
+                // modified below, so build it once per spacing rather than once per candidate. A layer split
+                // into many candidates (e.g. by colour painting) otherwise repeats a layer-wide offset for each.
+                std::map<coord_t, Polylines> boundary_by_spacing;
+                // expansion_area is a clean, non-overlapping set, so uniting it with a bridge or cutting a bridge
+                // out of it only changes the polygons near that bridge. The rest are passed through untouched
+                // instead of being fed to ClipperLib with the whole layer again for every candidate.
+                // Not `near`/`far`: the Windows headers still define those as macros, and they expand to
+                // nothing, which turns the declaration below into an empty one.
+                const auto split_near = [](const Polygons &polys, const BoundingBox &bbox, Polygons &rest) {
+                    Polygons nearby;
+                    for (const Polygon &p : polys)
+                        (get_extents(p).overlap(bbox) ? nearby : rest).emplace_back(p);
+                    return nearby;
+                };
                 for (const CandidateSurface &candidate : surfaces_by_layer[lidx]) {
                     const auto &region_config = candidate.region->region().config();
                     const bool turning_pattern = region_config.sparse_infill_pattern == ipHilbertCurve ||
                                                  region_config.sparse_infill_pattern == ipOctagramSpiral;
                     const Flow &flow              = candidate.region->bridging_flow(frSolidInfill, true);
                     Polygons    area_to_be_bridge = expand(candidate.new_polys, flow.scaled_spacing());
-                    area_to_be_bridge             = intersection(area_to_be_bridge, deep_infill_area);
+                    // deep_infill_area and internal_unsupported_area cover the whole layer; only their part under
+                    // this candidate can change the results, so they are clipped to its box first.
+                    if (!area_to_be_bridge.empty())
+                        area_to_be_bridge = intersection(area_to_be_bridge,
+                                                         ClipperUtils::clip_clipper_polygons_with_subject_bbox(
+                                                             deep_infill_area, get_extents(area_to_be_bridge).inflated(SCALED_EPSILON)));
 
                     area_to_be_bridge.erase(std::remove_if(area_to_be_bridge.begin(), area_to_be_bridge.end(),
-                                                           [internal_unsupported_area](const Polygon &p) {
-                                                               return intersection({p}, internal_unsupported_area).empty();
+                                                           [&internal_unsupported_area](const Polygon &p) {
+                                                               return intersection({p}, ClipperUtils::clip_clipper_polygons_with_subject_bbox(
+                                                                                            internal_unsupported_area,
+                                                                                            get_extents(p).inflated(SCALED_EPSILON)))
+                                                                   .empty();
                                                            }),
                                             area_to_be_bridge.end());
 
-                    Polygons limiting_area = union_(area_to_be_bridge, expansion_area);
-
                     if (area_to_be_bridge.empty())
                         continue;
 
-                    Polylines boundary_plines = to_polylines(expand(total_fill_area, 1.3 * flow.scaled_spacing()));
+                    Polygons       limiting_area;
+                    const Polygons near_expansion = split_near(expansion_area, get_extents(area_to_be_bridge).inflated(SCALED_EPSILON),
+                                                               limiting_area);
+                    append(limiting_area, union_(area_to_be_bridge, near_expansion));
+
+                    auto boundary_it = boundary_by_spacing.find(flow.scaled_spacing());
+                    if (boundary_it == boundary_by_spacing.end())
+                        boundary_it = boundary_by_spacing
+                                          .emplace(flow.scaled_spacing(), to_polylines(expand(total_fill_area, 1.3 * flow.scaled_spacing())))
+                                          .first;
+                    Polylines boundary_plines = boundary_it->second;
                     {
-                        Polylines limiting_plines = to_polylines(expand(limiting_area, 0.3*flow.spacing()));
+                        // No offset here: flow.spacing() is in mm, so the expand(limiting_area, 0.3 * flow.spacing())
+                        // this used to be moved the outline by 0.135 scaled units - nothing beyond rounding - while
+                        // costing a whole-layer ClipperLib pass for every candidate. limiting_area is already a clean
+                        // union, so its own outline is the same boundary.
+                        Polylines limiting_plines = to_polylines(limiting_area);
                         boundary_plines.insert(boundary_plines.end(), limiting_plines.begin(), limiting_plines.end());
                     }
 
@@ -3499,8 +3657,11 @@ void PrintObject::bridge_over_infill()
                     {
                         bool     reconstruct       = false;
                         Polygons          tmp_expanded_area = expand(bridging_area, 3.0 * flow.scaled_spacing());
+                        const BoundingBox tmp_expanded_bbox = get_extents(tmp_expanded_area);
                         for (const CandidateSurface &s : expanded_surfaces) {
-                            if (!intersection(s.new_polys, tmp_expanded_area).empty()) {
+                            // Surfaces whose boxes miss each other cannot intersect, which is most pairs on a busy layer.
+                            if (get_extents(s.new_polys).overlap(tmp_expanded_bbox) &&
+                                !intersection(s.new_polys, tmp_expanded_area).empty()) {
                                 bridging_angle = s.bridge_angle;
                                 reconstruct    = true;
                                 break;
@@ -3524,10 +3685,20 @@ void PrintObject::bridge_over_infill()
                         bridging_area = union_(bridging_area, construct_anchored_polygon(bridging_area, to_lines(boundary_plines), flow,
                                                                                        bridging_angle, scan_spacing, true));
                     }
-                    bridging_area          = intersection(bridging_area, limiting_area);
-                    bridging_area          = intersection(bridging_area, total_fill_area);
-                    bridging_area          = diff(bridging_area, total_top_area);
-                    expansion_area         = diff(expansion_area, bridging_area);
+                    // Each of these meets one bridge with the whole layer, so the layer side is first cut down to the
+                    // bridge's box (and expansion_area split as above); the result is the same.
+                    if (!bridging_area.empty()) {
+                        const BoundingBox bridging_bbox = get_extents(bridging_area).inflated(SCALED_EPSILON);
+                        bridging_area = intersection(bridging_area, ClipperUtils::clip_clipper_polygons_with_subject_bbox(limiting_area, bridging_bbox));
+                        bridging_area = intersection(bridging_area, ClipperUtils::clip_clipper_polygons_with_subject_bbox(total_fill_area, bridging_bbox));
+                        bridging_area = diff(bridging_area, ClipperUtils::clip_clipper_polygons_with_subject_bbox(total_top_area, bridging_bbox));
+                    }
+                    if (!bridging_area.empty()) {
+                        Polygons       kept;
+                        const Polygons cut = split_near(expansion_area, get_extents(bridging_area).inflated(SCALED_EPSILON), kept);
+                        append(kept, diff(cut, bridging_area));
+                        expansion_area = std::move(kept);
+                    }
 
 #ifdef DEBUG_BRIDGE_OVER_INFILL
                     debug_draw(std::to_string(lidx) + "_" + std::to_string(cluster_idx) + "_" + std::to_string(job_idx) + "_" + "_expanded_bridging" +  std::to_string(r),

src/libslic3r/Support/SupportMaterial.cpp

@@ -929,9 +929,9 @@ public:
                 ::fread(&y, sizeof(coord_t), 1, file);
                 poly.points.emplace_back(Point(x * scale, y * scale));
             }
+            printf("Polygon %d, area: %lf\n", i, area(poly.points));
             if (which == -1 || which == i)
                 m_support_polygons_deserialized.emplace_back(std::move(poly));
-            printf("Polygon %d, area: %lf\n", i, area(poly.points));
         }
         ::fread(&n_polygons, 4, 1, file);
         m_trimming_polygons_deserialized.reserve(n_polygons);

src/libslic3r/Support/TreeSupport.cpp

@@ -854,11 +854,41 @@ void TreeSupport::detect_overhangs(bool check_support_necessity/* = false*/)
                 if (is_auto(stype) && config_detect_sharp_tails)
                 {
                     // BBS detect sharp tail
+                    // Each island is tested only against the lower islands whose box meets its own; overlaps() tries
+                    // every pair, which is quadratic in the island counts of the two layers.
+                    std::vector<BoundingBox> lower_bboxes;
+                    lower_bboxes.reserve(lower_polys.size());
+                    for (const ExPolygon &lower : lower_polys)
+                        lower_bboxes.emplace_back(get_extents(lower));
                     for (const ExPolygon& expoly : curr_polys) {
                         bool  is_sharp_tail = false;
                         // 1. nothing below
                         // this is a sharp tail region if it's floating and non-ignorable
-                        if (!overlaps(offset_ex(expoly, 0.1 * extrusion_width_scaled), lower_polys)) {
+                        const ExPolygons  expanded = offset_ex(expoly, 0.1 * extrusion_width_scaled);
+                        const BoundingBox bbox     = get_extents(expanded);
+                        ExPolygons        lower_nearby;
+                        for (size_t i = 0; i < lower_polys.size(); ++i)
+                            if (lower_bboxes[i].overlap(bbox))
+                                lower_nearby.emplace_back(lower_polys[i]);
+                        // As overlaps(expanded, lower_nearby), with each lower island cut to the island's box first:
+                        // below a fine relief the lower layer is a few islands with thousands of holes, and the whole
+                        // of that boundary would otherwise be intersected once per island above.
+                        const auto overlaps_nearby = [&]() {
+                            for (const ExPolygon &a : expanded) {
+                                if (a.empty())
+                                    continue;
+                                const BoundingBox a_bbox = get_extents(a);
+                                for (const ExPolygon &b : lower_nearby) {
+                                    if (b.empty() || !get_extents(b).overlap(a_bbox))
+                                        continue;
+                                    const Polygons b_near = ClipperUtils::clip_clipper_polygons_with_subject_bbox(b, a_bbox.inflated(SCALED_EPSILON));
+                                    if (!intersection_pl(to_polylines(b_near), a).empty() || b.contains(a.contour.points.front()))
+                                        return true;
+                                }
+                            }
+                            return false;
+                        };
+                        if (!overlaps_nearby()) {
                             is_sharp_tail = !offset_ex(expoly, -0.1 * extrusion_width_scaled).empty();
                         }
 

src/libslic3r/Surface.hpp

@@ -61,7 +61,7 @@ public:
             thickness(other.thickness), thickness_layers(other.thickness_layers),
             bridge_angle(other.bridge_angle), extra_perimeters(other.extra_perimeters)
         {};
-    Surface(Surface &&rhs)
+    Surface(Surface &&rhs) noexcept
         : surface_type(rhs.surface_type), expolygon(std::move(rhs.expolygon)),
             thickness(rhs.thickness), thickness_layers(rhs.thickness_layers),
             bridge_angle(rhs.bridge_angle), extra_perimeters(rhs.extra_perimeters)
@@ -87,7 +87,7 @@ public:
         return *this;
     }
 
-    Surface& operator=(Surface &&rhs)
+    Surface& operator=(Surface &&rhs) noexcept
     {
         surface_type     = rhs.surface_type;
         expolygon        = std::move(rhs.expolygon);

src/libslic3r/Utils.hpp

@@ -256,19 +256,10 @@ extern bool is_gallery_file(const std::string& path, char const* type);
 extern bool is_shapes_dir(const std::string& dir);
 //BBS: add json support
 extern bool is_json_file(const std::string& path);
-// True if rel_path is relative, has no ".." component or embedded NUL and, joined to root, still resolves inside it.
+// True if rel_path is relative, has no ".." component and, joined to root, still resolves inside it.
 // Both '/' and '\\' are treated as separators on every platform, so an archive rejected on one OS
 // is rejected on all of them.
 extern bool is_path_within_root(const std::string &rel_path, const boost::filesystem::path &root);
-// True if a symlink stored at link_rel_path (relative to root) with this target stays inside root: the target
-// must be relative, and joined to the link's directory it must pass is_path_within_root.
-extern bool is_symlink_target_within_root(const std::string &link_rel_path, const std::string &target, const boost::filesystem::path &root);
-// True if path names an entry strictly inside root: it must be spelled with root as its prefix,
-// and must still resolve inside root once symlinks are followed.
-extern bool is_absolute_path_within_root(const boost::filesystem::path &path, const boost::filesystem::path &root);
-// True if a file with this name is of a type that the desktop opens as plain content, so it cannot run code.
-// Anything unknown is not safe.
-extern bool is_safe_to_open_file_name(const std::string &file_name);
 
 // Orca: custom protocal support utils
 inline bool is_orca_open(const std::string& url) { return boost::starts_with(url, "orcaslicer://open"); }

src/libslic3r/libslic3r.h

@@ -162,10 +162,10 @@ inline void append(std::vector<T, Alloc> &dest, std::vector<T, Alloc> &&src)
 {
     if (dest.empty())
         dest = std::move(src);
-    else {
-        dest.reserve(dest.size() + src.size());
-        std::move(std::begin(src), std::end(src), std::back_inserter(dest));
-    }
+    else
+        // insert() grows the capacity geometrically; reserving exactly the new size reallocated on every call, which
+        // made appending piece by piece quadratic.
+        dest.insert(dest.end(), std::make_move_iterator(src.begin()), std::make_move_iterator(src.end()));
     src.clear();
     src.shrink_to_fit();
 }

src/libslic3r/miniz_extension.cpp

@@ -4,9 +4,6 @@
 #include "miniz_extension.hpp"
 #include "Utils.hpp"
 
-#include <boost/filesystem.hpp>
-#include <boost/log/trivial.hpp>
-
 #if defined(_MSC_VER) || defined(__MINGW64__)
 #include "boost/nowide/cstdio.hpp"
 #endif
@@ -118,66 +115,6 @@ std::string decode_archive_entry_path(mz_zip_archive *zip, const mz_zip_archive_
     return decode_zip_unicode_path_extra_field(extra.substr(0, extra_size > 0 ? extra_size - 1 : 0), stat.m_filename);
 }
 
-bool extract_archive_confined(const std::string &zip_path_utf8, const std::string &dest_dir)
-{
-    mz_zip_archive archive;
-    mz_zip_zero_struct(&archive);
-
-    if (!open_zip_reader(&archive, zip_path_utf8)) {
-        BOOST_LOG_TRIVIAL(error) << "Unable to open zip reader for " << zip_path_utf8;
-        return false;
-    }
-
-    const mz_uint num_entries = mz_zip_reader_get_num_files(&archive);
-    mz_zip_archive_file_stat stat;
-
-    // Validate every entry first so an archive with a single escaping entry leaves no partial output behind.
-    const boost::filesystem::path root(dest_dir);
-    for (mz_uint i = 0; i < num_entries; ++i) {
-        if (mz_zip_reader_file_stat(&archive, i, &stat) && !is_path_within_root(stat.m_filename, root)) {
-            BOOST_LOG_TRIVIAL(error) << "Unzip: rejecting " << zip_path_utf8 << ", entry " << stat.m_filename << " resolves outside " << dest_dir;
-            close_zip_reader(&archive);
-            return false;
-        }
-    }
-
-    for (mz_uint i = 0; i < num_entries; ++i) {
-        if (!mz_zip_reader_file_stat(&archive, i, &stat)) {
-            BOOST_LOG_TRIVIAL(warning) << "Unzip: read file stat failed";
-            continue;
-        }
-        const std::string dest_file = dest_dir + "/" + stat.m_filename;
-        try {
-            if (stat.m_is_directory) {
-                const boost::filesystem::path dest_path(dest_file);
-                if (!boost::filesystem::exists(dest_path))
-                    boost::filesystem::create_directories(dest_path);
-                continue;
-            }
-            if (stat.m_uncomp_size == 0) {
-                BOOST_LOG_TRIVIAL(warning) << "Unzip: invalid size for file " << stat.m_filename;
-                continue;
-            }
-            // Replace a symlink at the destination rather than writing through it.
-            const boost::filesystem::path dest_path(dest_file);
-            if (boost::filesystem::is_symlink(boost::filesystem::symlink_status(dest_path)))
-                boost::filesystem::remove(dest_path);
-            if (!mz_zip_reader_extract_to_file(&archive, stat.m_file_index, dest_file.c_str(), 0)) {
-                BOOST_LOG_TRIVIAL(error) << "Unzip: extract file " << stat.m_filename << " to dest " << dest_file << " failed";
-                close_zip_reader(&archive);
-                return false;
-            }
-            BOOST_LOG_TRIVIAL(info) << "Unzip: successfully extract file " << stat.m_file_index << " to " << dest_file;
-        } catch (const std::exception &e) {
-            close_zip_reader(&archive);
-            BOOST_LOG_TRIVIAL(error) << "Unzip: archive read exception: " << e.what();
-            return false;
-        }
-    }
-    close_zip_reader(&archive);
-    return true;
-}
-
 MZ_Archive::MZ_Archive()
 {
     mz_zip_zero_struct(&arch);

src/libslic3r/miniz_extension.hpp

@@ -11,8 +11,6 @@ bool open_zip_writer(mz_zip_archive *zip, const std::string &fname_utf8);
 bool close_zip_reader(mz_zip_archive *zip);
 bool close_zip_writer(mz_zip_archive *zip);
 std::string decode_archive_entry_path(mz_zip_archive *zip, const mz_zip_archive_file_stat &stat);
-// Extracts every entry of the archive under dest_dir. Nothing is written if any entry would resolve outside dest_dir.
-bool extract_archive_confined(const std::string &zip_path_utf8, const std::string &dest_dir);
 
 class MZ_Archive {
 public:

src/libslic3r/utils.cpp

@@ -70,7 +70,6 @@
 #include <boost/shared_ptr.hpp>
 
 #include <boost/algorithm/string/predicate.hpp>
-#include <boost/algorithm/string/case_conv.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/filesystem/path.hpp>
 #include <boost/nowide/fstream.hpp>
@@ -1094,9 +1093,6 @@ bool is_path_within_root(const std::string &rel_path, const boost::filesystem::p
     auto is_separator = [](char c) { return c == '/' || c == '\\'; };
     if (rel_path.empty() || is_separator(rel_path.front()) || (rel_path.size() > 1 && rel_path[1] == ':'))
         return false;
-    // The filesystem calls stop at a NUL, so they would act on a shorter path than the one checked here.
-    if (rel_path.find('\0') != std::string::npos)
-        return false;
     for (size_t start = 0; start <= rel_path.size();) {
         size_t end = start;
         while (end < rel_path.size() && !is_separator(rel_path[end]))
@@ -1107,10 +1103,7 @@ bool is_path_within_root(const std::string &rel_path, const boost::filesystem::p
     }
     // Resolve against the canonical root so a symlink inside it cannot lead back out.
     try {
-        std::string root_str = boost::filesystem::weakly_canonical(root).string();
-        // A trailing separator on root would otherwise fail the prefix match below for every path.
-        while (!root_str.empty() && (root_str.back() == '/' || root_str.back() == boost::filesystem::path::preferred_separator))
-            root_str.pop_back();
+        const std::string root_str = boost::filesystem::weakly_canonical(root).string();
         const std::string full_str = boost::filesystem::weakly_canonical(root / rel_path).string();
         return full_str.compare(0, root_str.size(), root_str) == 0 &&
                (full_str.size() == root_str.size() || full_str[root_str.size()] == boost::filesystem::path::preferred_separator);
@@ -1119,37 +1112,6 @@ bool is_path_within_root(const std::string &rel_path, const boost::filesystem::p
     }
 }
 
-bool is_symlink_target_within_root(const std::string &link_rel_path, const std::string &target, const boost::filesystem::path &root)
-{
-    if (target.empty() || target.front() == '/' || target.front() == '\\' || (target.size() > 1 && target[1] == ':'))
-        return false;
-    // A relative target without ".." only descends from the link's directory, so no chain of such links can leave root.
-    const size_t sep = link_rel_path.find_last_of("/\\");
-    return is_path_within_root((sep == std::string::npos ? std::string() : link_rel_path.substr(0, sep + 1)) + target, root);
-}
-
-bool is_absolute_path_within_root(const boost::filesystem::path &path, const boost::filesystem::path &root)
-{
-    const boost::filesystem::path rel = path.lexically_relative(root);
-    return !rel.empty() && rel != "." && is_path_within_root(rel.string(), root);
-}
-
-bool is_safe_to_open_file_name(const std::string &file_name)
-{
-    // Formats that cannot carry macros or scripts. Legacy and OpenDocument office files, HTML and SVG are left out on purpose.
-    static const std::vector<std::string> safe_extensions = {
-        "jpg", "jpeg", "jfif", "pjpeg", "pjp", "png", "gif", "bmp", "webp", "tif", "tiff",
-        "pdf", "txt", "md", "csv", "docx", "xlsx", "pptx",
-        "stl", "obj", "3mf", "amf", "ply", "step", "stp", "iges", "igs", "dxf",
-        "mp4", "mov", "webm"};
-    // The name must end in the extension itself: Windows drops trailing dots and spaces and reads ':' as a stream separator.
-    const size_t dot = file_name.find_last_of('.');
-    if (dot == std::string::npos || file_name.find_first_of("/\\:") != std::string::npos)
-        return false;
-    const std::string extension = boost::algorithm::to_lower_copy(file_name.substr(dot + 1));
-    return std::find(safe_extensions.begin(), safe_extensions.end(), extension) != safe_extensions.end();
-}
-
 bool is_img_file(const std::string &path)
 {
 	return boost::iends_with(path, ".png") || boost::iends_with(path, ".svg");

src/slic3r/CMakeLists.txt

@@ -236,7 +236,6 @@ set(SLIC3R_GUI_SOURCES
     GUI/GLToolbar.hpp
     GUI/ImageDPIFrame.cpp
     GUI/ImageDPIFrame.hpp
-    GUI/IMediaController.hpp
     GUI/GUI_App.cpp
     GUI/GUI_App.hpp
     GUI/GUI_AuxiliaryList.cpp
@@ -366,8 +365,6 @@ set(SLIC3R_GUI_SOURCES
     GUI/MediaFilePanel.h
     GUI/MediaPlayCtrl.cpp
     GUI/MediaPlayCtrl.h
-    GUI/WebRtcMediaController.cpp
-    GUI/WebRtcMediaController.hpp
     GUI/MeshUtils.cpp
     GUI/MeshUtils.hpp
     GUI/ModelMall.cpp
@@ -563,8 +560,6 @@ set(SLIC3R_GUI_SOURCES
     GUI/WebUserLoginDialog.hpp
     GUI/WebViewDialog.cpp
     GUI/WebViewDialog.hpp
-    GUI/WebMediaController.hpp
-    GUI/WebMediaController.cpp
     GUI/Widgets/AMSControl.cpp
     GUI/Widgets/AMSControl.hpp
     GUI/Widgets/AMSItem.cpp
@@ -759,15 +754,10 @@ set(SLIC3R_GUI_SOURCES
     Utils/NetworkAgentFactory.cpp
     Utils/ICloudServiceAgent.hpp
     Utils/IPrinterAgent.hpp
-    Utils/ICameraSignalingChannel.hpp
     Utils/OrcaCloudServiceAgent.cpp
     Utils/OrcaCloudServiceAgent.hpp
-    Utils/OrcaMqttConnection.cpp
-    Utils/OrcaMqttConnection.hpp
     Utils/OrcaPrinterAgent.cpp
     Utils/OrcaPrinterAgent.hpp
-    Utils/OrcaCloudSignalingChannel.cpp
-    Utils/OrcaCloudSignalingChannel.hpp
     Utils/QidiPrinterAgent.cpp
     Utils/QidiPrinterAgent.hpp
     Utils/SnapmakerPrinterAgent.cpp
@@ -908,7 +898,7 @@ target_include_directories(libslic3r_gui PRIVATE Utils ${CMAKE_CURRENT_BINARY_DI
 
 if (WIN32)
     target_include_directories(libslic3r_gui SYSTEM PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../../deps/WebView2/include)
-    target_link_libraries(libslic3r_gui Advapi32 Crypt32)
+    target_link_libraries(libslic3r_gui Advapi32)
 endif()
 
 source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} FILES ${SLIC3R_GUI_SOURCES})
@@ -934,7 +924,7 @@ else()
     set(_opengl_link_lib OpenGL::GL)
 endif()
 
-target_link_libraries(libslic3r_gui libslic3r cereal::cereal imgui imguizmo minilzo libvgcode md4c-html glad ${_opengl_link_lib} hidapi mdns ${wxWidgets_LIBRARIES} glfw libcurl OpenSSL::SSL OpenSSL::Crypto LibDataChannel::LibDataChannel noise::noise pybind11::embed)
+target_link_libraries(libslic3r_gui libslic3r cereal::cereal imgui imguizmo minilzo libvgcode md4c-html glad ${_opengl_link_lib} hidapi mdns ${wxWidgets_LIBRARIES} glfw libcurl OpenSSL::SSL OpenSSL::Crypto noise::noise pybind11::embed)
 
 if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
     # Linux finds wxWidgets in module mode, whose include dirs and definitions
@@ -991,32 +981,29 @@ endif ()
 
 if (APPLE)
     # Static FFmpeg from the deps install: nothing to bundle into the .app,
-    # no rpath/install_name handling. Order matters: avformat -> avcodec -> swscale -> avutil.
-    find_library(LIBAVFORMAT_LIBRARY NAMES libavformat.a PATHS ${CMAKE_PREFIX_PATH}/lib NO_DEFAULT_PATH)
+    # no rpath/install_name handling. Order matters: avcodec -> swscale -> avutil.
     find_library(LIBAVCODEC_LIBRARY NAMES libavcodec.a PATHS ${CMAKE_PREFIX_PATH}/lib NO_DEFAULT_PATH)
     find_library(LIBSWSCALE_LIBRARY NAMES libswscale.a PATHS ${CMAKE_PREFIX_PATH}/lib NO_DEFAULT_PATH)
     find_library(LIBAVUTIL_LIBRARY NAMES libavutil.a PATHS ${CMAKE_PREFIX_PATH}/lib NO_DEFAULT_PATH)
-    if (NOT LIBAVFORMAT_LIBRARY OR NOT LIBAVCODEC_LIBRARY OR NOT LIBSWSCALE_LIBRARY OR NOT LIBAVUTIL_LIBRARY)
-        message(FATAL_ERROR "Static FFmpeg (libavformat.a/libavcodec.a/libswscale.a/libavutil.a) not found under ${CMAKE_PREFIX_PATH}/lib. Rebuild the deps — FFMPEG builds static-only on macOS.")
+    if (NOT LIBAVCODEC_LIBRARY OR NOT LIBSWSCALE_LIBRARY OR NOT LIBAVUTIL_LIBRARY)
+        message(FATAL_ERROR "Static FFmpeg (libavcodec.a/libswscale.a/libavutil.a) not found under ${CMAKE_PREFIX_PATH}/lib. Rebuild the deps — FFMPEG builds static-only on macOS.")
     endif ()
-    target_link_libraries(libslic3r_gui ${LIBAVFORMAT_LIBRARY} ${LIBAVCODEC_LIBRARY} ${LIBSWSCALE_LIBRARY} ${LIBAVUTIL_LIBRARY})
+    target_link_libraries(libslic3r_gui ${LIBAVCODEC_LIBRARY} ${LIBSWSCALE_LIBRARY} ${LIBAVUTIL_LIBRARY})
     target_include_directories(libslic3r_gui SYSTEM PRIVATE ${CMAKE_PREFIX_PATH}/include)
 elseif (WIN32)
     # Prebuilt shared FFmpeg from the deps install. Windows has no pkg-config,
     # so resolve the import libraries out of the deps prefix directly; the DLLs
     # are copied next to the executable by the top level CMakeLists.
-    find_library(LIBAVFORMAT_LIBRARY NAMES avformat PATHS ${CMAKE_PREFIX_PATH}/lib NO_DEFAULT_PATH)
     find_library(LIBAVCODEC_LIBRARY NAMES avcodec PATHS ${CMAKE_PREFIX_PATH}/lib NO_DEFAULT_PATH)
     find_library(LIBSWSCALE_LIBRARY NAMES swscale PATHS ${CMAKE_PREFIX_PATH}/lib NO_DEFAULT_PATH)
     find_library(LIBAVUTIL_LIBRARY NAMES avutil PATHS ${CMAKE_PREFIX_PATH}/lib NO_DEFAULT_PATH)
-    if (NOT LIBAVFORMAT_LIBRARY OR NOT LIBAVCODEC_LIBRARY OR NOT LIBSWSCALE_LIBRARY OR NOT LIBAVUTIL_LIBRARY)
-        message(FATAL_ERROR "FFmpeg (avformat/avcodec/swscale/avutil) not found under ${CMAKE_PREFIX_PATH}/lib. Rebuild the deps.")
+    if (NOT LIBAVCODEC_LIBRARY OR NOT LIBSWSCALE_LIBRARY OR NOT LIBAVUTIL_LIBRARY)
+        message(FATAL_ERROR "FFmpeg (avcodec/swscale/avutil) not found under ${CMAKE_PREFIX_PATH}/lib. Rebuild the deps.")
     endif ()
-    target_link_libraries(libslic3r_gui ${LIBAVFORMAT_LIBRARY} ${LIBAVCODEC_LIBRARY} ${LIBSWSCALE_LIBRARY} ${LIBAVUTIL_LIBRARY})
+    target_link_libraries(libslic3r_gui ${LIBAVCODEC_LIBRARY} ${LIBSWSCALE_LIBRARY} ${LIBAVUTIL_LIBRARY})
     target_include_directories(libslic3r_gui SYSTEM PRIVATE ${CMAKE_PREFIX_PATH}/include)
 else ()
     pkg_check_modules(LIBAV REQUIRED IMPORTED_TARGET
-        libavformat
         libavcodec
         libswscale
         libavutil
@@ -1032,9 +1019,14 @@ if (UNIX AND NOT APPLE)
     find_package(GTK${SLIC3R_GTK} REQUIRED)
     pkg_check_modules(LIBSECRET REQUIRED libsecret-1)
     pkg_check_modules(webkit2gtk REQUIRED webkit2gtk-4.1)
+    if (FLATPAK)
+        # I don't know why this is needed, but for whatever reason slic3r isn't
+        # linking to X11 and webkit2gtk. force it.
         find_package(X11 REQUIRED)
+        target_link_libraries(libslic3r_gui ${X11_LIBRARIES} ${webkit2gtk_LIBRARIES})
+    endif()
     target_include_directories(libslic3r_gui SYSTEM PRIVATE ${GTK${SLIC3R_GTK}_INCLUDE_DIRS} ${LIBSECRET_INCLUDE_DIRS} ${webkit2gtk_INCLUDE_DIRS})
-    target_link_libraries(libslic3r_gui ${GTK${SLIC3R_GTK}_LIBRARIES} fontconfig ${LIBSECRET_LIBRARIES} ${webkit2gtk_LIBRARIES} ${X11_LIBRARIES})
+    target_link_libraries(libslic3r_gui ${GTK${SLIC3R_GTK}_LIBRARIES} fontconfig ${LIBSECRET_LIBRARIES})
 
     # Propagate GDK backend detection results as compile definitions so that
     # LinuxDisplayBackend.cpp can include the right GDK headers.

src/slic3r/GUI/AVVideoDecoder.cpp

@@ -45,25 +45,6 @@ int AVVideoDecoder::open(Bambu_StreamInfo const &info)
     return 0;
 }
 
-int AVVideoDecoder::open(AVCodecParameters const &parameters)
-{
-    if (avcodec_parameters_to_context(codec_ctx_, &parameters) < 0)
-        return -1;
-
-    auto codec = avcodec_find_decoder(codec_ctx_->codec_id);
-    if (codec == nullptr) {
-        fprintf(stderr, "AVVideoDecoder: unsupported codec!\n");
-        return -1;
-    }
-    if (avcodec_open2(codec_ctx_, codec, nullptr) < 0) {
-        fprintf(stderr, "AVVideoDecoder: could not open codec\n");
-        return -1;
-    }
-
-    frame_ = av_frame_alloc();
-    return frame_ == nullptr ? -1 : 0;
-}
-
 int AVVideoDecoder::decode(const Bambu_Sample &sample)
 {
     int ret = -1;
@@ -90,14 +71,6 @@ int AVVideoDecoder::decode(const Bambu_Sample &sample)
     return ret;
 }
 
-int AVVideoDecoder::decode(const AVPacket &packet)
-{
-    int ret = avcodec_send_packet(codec_ctx_, &packet);
-    if (ret == 0)
-        got_frame_ = avcodec_receive_frame(codec_ctx_, frame_) == 0;
-    return ret;
-}
-
 int AVVideoDecoder::flush()
 {
     int ret = avcodec_send_packet(codec_ctx_, nullptr);

src/slic3r/GUI/AVVideoDecoder.hpp

@@ -23,10 +23,8 @@ public:
 
 public:
     int  open(Bambu_StreamInfo const &info);
-    int  open(AVCodecParameters const &parameters);
 
     int  decode(Bambu_Sample const &sample);
-    int  decode(AVPacket const &packet);
 
     int  flush();
 
@@ -36,14 +34,6 @@ public:
 
     bool toWxBitmap(wxBitmap &bitmap, wxSize const & size);
 
-    // Native size of the most recently decoded frame, or an unspecified size if
-    // nothing has decoded yet. Lets a caller learn the video dimensions when the
-    // container/probe could not report them up front.
-    wxSize decoded_frame_size() const
-    {
-        return got_frame_ && frame_ ? wxSize{frame_->width, frame_->height} : wxSize{};
-    }
-
 private:
     AVCodecContext *codec_ctx_ = nullptr;
     AVFrame *       frame_     = nullptr;

src/slic3r/GUI/Auxiliary.cpp

@@ -428,7 +428,7 @@ void AuFile::on_dclick(wxMouseEvent &evt)
     if (m_type == AddFileButton)
         return;
     else
-        desktop_open_project_attachment(this, m_file_path);
+        wxLaunchDefaultApplication(m_file_path.wstring(), 0);
 }
 
 void AuFile::on_mouse_left_up(wxMouseEvent &evt)

src/slic3r/GUI/CalibrationPanel.cpp

@@ -328,7 +328,7 @@ void SelectMObjectPopup::update_user_devices()
     }
 
     m_bind_machine_list.clear();
-    m_bind_machine_list = dev->get_my_machine_list(dev->get_current_printer_agent_id());
+    m_bind_machine_list = dev->get_my_machine_list();
 
     //sort list
     std::vector<std::pair<std::string, MachineObject*>> user_machine_list;

src/slic3r/GUI/CalibrationWizardPresetPage.cpp

@@ -6,10 +6,8 @@
 #include "Widgets/Label.hpp"
 #include "MsgDialog.hpp"
 #include "libslic3r/Print.hpp"
-#include "PrePrintChecker.hpp"
 
 #include "DeviceCore/DevConfig.h"
-#include "DeviceCore/DevConfigUtil.h"
 #include "DeviceCore/DevExtruderSystem.h"
 #include "DeviceCore/DevFilaBlackList.h"
 #include "DeviceCore/DevFilaSystem.h"
@@ -1639,6 +1637,29 @@ void CalibrationPresetPage::update_combobox_filaments(MachineObject* obj)
     select_default_compatible_filament();
 }
 
+bool CalibrationPresetPage::is_blocking_printing()
+{
+    DeviceManager* dev = Slic3r::GUI::wxGetApp().getDeviceManager();
+    if (!dev) return true;
+
+    MachineObject* obj_ = dev->get_selected_machine();
+    if (obj_ == nullptr) return true;
+
+    PresetBundle* preset_bundle = wxGetApp().preset_bundle;
+    auto source_model = preset_bundle->printers.get_edited_preset().get_printer_type(preset_bundle);
+    auto target_model = obj_->printer_type;
+
+    if (source_model != target_model) {
+        std::vector<std::string> compatible_machine = obj_->get_compatible_machine();
+        vector<std::string>::iterator it = find(compatible_machine.begin(), compatible_machine.end(), source_model);
+        if (it == compatible_machine.end()) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
 bool CalibrationPresetPage::is_nozzle_info_synced() const
 {
     if (!curr_obj || !curr_obj->is_info_ready())
@@ -1720,13 +1741,11 @@ void CalibrationPresetPage::update_show_status()
         }
     }
 
-    bool has_optional_printer_model = DevPrinterConfigUtil::is_optional_printer_model_id(obj_->printer_type);
-    if (PresetBundle *preset_bundle = wxGetApp().preset_bundle) {
-        has_optional_printer_model = has_optional_printer_model ||
-            DevPrinterConfigUtil::is_optional_printer_model_id(
-                preset_bundle->printers.get_edited_preset().get_printer_type(preset_bundle));
-    }
-
+    //if (is_blocking_printing()) {
+    //    show_status(CaliPresetPageStatus::CaliPresetStatusUnsupportedPrinter);
+    //    return;
+    //}
+    //else
     if (obj_->is_connecting() || !obj_->is_connected()) {
         show_status(CaliPresetPageStatus::CaliPresetStatusInConnecting);
         return;
@@ -1778,9 +1797,7 @@ void CalibrationPresetPage::update_show_status()
         return;
     }
 
-    show_status(has_optional_printer_model ?
-        CaliPresetPageStatus::CaliPresetStatusOptionalPrinterModel :
-        CaliPresetPageStatus::CaliPresetStatusNormal);
+    show_status(CaliPresetPageStatus::CaliPresetStatusNormal);
 }
 
 
@@ -1834,10 +1851,6 @@ void CalibrationPresetPage::show_status(CaliPresetPageStatus status)
         Layout();
         Fit();
     }
-    else if (status == CaliPresetPageStatus::CaliPresetStatusOptionalPrinterModel) {
-        update_print_status_msg(PrePrintChecker::get_pre_state_msg(PrintDialogStatus::PrintStatusOptionalPrinterModel), true);
-        Enable_Send_Button(true);
-    }
     else if (status == CaliPresetPageStatus::CaliPresetStatusNoUserLogin) {
         wxString msg_text = _L("No login account, only printers in LAN mode are displayed.");
         update_print_status_msg(msg_text, false);

src/slic3r/GUI/CalibrationWizardPresetPage.hpp

@@ -152,8 +152,7 @@ enum CaliPresetPageStatus
     CaliPresetStatusInConnecting, 
     CaliPresetStatusFilamentIncompatible,
     CaliPresetStatusLanModeSDcardNotAvailable,
-    CaliPresetStatusDifferentNozzleDiameters,
-    CaliPresetStatusOptionalPrinterModel
+    CaliPresetStatusDifferentNozzleDiameters
 };
 
 class CalibrationPresetPage : public CalibrationWizardPage
@@ -269,6 +268,7 @@ protected:
     bool is_nozzle_info_synced() const;
     void show_status(CaliPresetPageStatus status);
     void Enable_Send_Button(bool enable);
+    bool is_blocking_printing();
     bool need_check_sdcard(MachineObject* obj);
     
     CaliPresetPageStatus  get_status() { return m_page_status; }

src/slic3r/GUI/CameraPopup.cpp

@@ -28,6 +28,7 @@ wxEND_EVENT_TABLE()
 
 wxDEFINE_EVENT(EVT_VCAMERA_SWITCH, wxMouseEvent);
 wxDEFINE_EVENT(EVT_SDCARD_ABSENT_HINT, wxCommandEvent);
+wxDEFINE_EVENT(EVT_CAM_SOURCE_CHANGE, wxCommandEvent);
 
 #define CAMERAPOPUP_CLICK_INTERVAL 20
 
@@ -101,6 +102,34 @@ CameraPopup::CameraPopup(wxWindow *parent)
         top_sizer->Add(0, 0, wxALL, 0);
     }
 
+    // Orca: custom IP camera source — lets the user point Live Video at any camera URL (Orca feature; not in the reference)
+    m_custom_camera_input_confirm = new Button(m_panel, _L("Enable"));
+    m_custom_camera_input_confirm->SetBackgroundColor(wxColour(38, 166, 154));
+    m_custom_camera_input_confirm->SetBorderColor(wxColour(38, 166, 154));
+    m_custom_camera_input_confirm->SetTextColor(wxColour(0xFFFFFE));
+    m_custom_camera_input_confirm->SetFont(Label::Body_14);
+    m_custom_camera_input_confirm->SetMinSize(wxSize(FromDIP(90), FromDIP(30)));
+    m_custom_camera_input_confirm->SetPosition(wxDefaultPosition);
+    m_custom_camera_input_confirm->SetCornerRadius(FromDIP(12));
+    m_custom_camera_input = new TextInput(m_panel, wxEmptyString, wxEmptyString, wxEmptyString, wxDefaultPosition, wxDefaultSize);
+    m_custom_camera_input->GetTextCtrl()->SetHint(_L("Hostname or IP"));
+    m_custom_camera_input->GetTextCtrl()->SetFont(Label::Body_14);
+    m_custom_camera_hint = new wxStaticText(m_panel, wxID_ANY, _L("Custom camera source"));
+    m_custom_camera_hint->Wrap(-1);
+    m_custom_camera_hint->SetFont(Label::Head_14);
+    m_custom_camera_hint->SetForegroundColour(TEXT_COL);
+
+    m_custom_camera_input_confirm->Bind(wxEVT_BUTTON, &CameraPopup::on_camera_source_changed, this);
+
+    if (!wxGetApp().app_config->get("camera", "custom_source").empty()) {
+        m_custom_camera_input->GetTextCtrl()->SetValue(wxGetApp().app_config->get("camera", "custom_source"));
+        set_custom_cam_button_state(wxGetApp().app_config->get("camera", "enable_custom_source") == "true");
+    }
+
+    top_sizer->Add(m_custom_camera_hint, 0, wxALIGN_CENTER_VERTICAL | wxALIGN_LEFT | wxALL, FromDIP(5));
+    top_sizer->Add(0, 0, wxALL, 0);
+    top_sizer->Add(m_custom_camera_input, 2, wxALIGN_CENTER_VERTICAL | wxEXPAND | wxALL, FromDIP(5));
+    top_sizer->Add(m_custom_camera_input_confirm, 1, wxALIGN_CENTER_VERTICAL | wxALIGN_RIGHT | wxALL, FromDIP(5));
     main_sizer->Add(top_sizer, 0, wxALL, FromDIP(10));
 
     auto url = wxString(L"https://www.orcaslicer.com/wiki/"); // Orca: neutral wiki link (vendor URL removed)
@@ -155,6 +184,37 @@ void CameraPopup::sdcard_absent_hint()
     GetEventHandler()->ProcessEvent(evt);
 }
 
+void CameraPopup::on_camera_source_changed(wxCommandEvent &event)
+{
+    if (m_obj && !m_custom_camera_input->GetTextCtrl()->IsEmpty()) {
+        handle_camera_source_change();
+    }
+}
+
+void CameraPopup::handle_camera_source_change()
+{
+    m_custom_camera_enabled = !m_custom_camera_enabled;
+
+    set_custom_cam_button_state(m_custom_camera_enabled);
+
+    wxGetApp().app_config->set("camera", "custom_source", m_custom_camera_input->GetTextCtrl()->GetValue().ToStdString());
+    wxGetApp().app_config->set("camera", "enable_custom_source", m_custom_camera_enabled);
+
+    wxCommandEvent evt(EVT_CAM_SOURCE_CHANGE);
+    evt.SetEventObject(this);
+    GetEventHandler()->ProcessEvent(evt);
+}
+
+void CameraPopup::set_custom_cam_button_state(bool state)
+{
+    m_custom_camera_enabled = state;
+    auto stateColour = state ? wxColour(170, 0, 0) : wxColour(38, 166, 154);
+    auto stateText = state ? "Disable" : "Enable";
+    m_custom_camera_input_confirm->SetBackgroundColor(stateColour);
+    m_custom_camera_input_confirm->SetBorderColor(stateColour);
+    m_custom_camera_input_confirm->SetLabel(_L(stateText));
+}
+
 void CameraPopup::on_switch_recording(wxCommandEvent& event)
 {
     if (!m_obj) return;

src/slic3r/GUI/CameraPopup.hpp

@@ -15,12 +15,14 @@
 #include "Widgets/SwitchButton.hpp"
 #include "Widgets/RadioBox.hpp"
 #include "Widgets/PopupWindow.hpp"
+#include "Widgets/TextInput.hpp"
 
 namespace Slic3r {
 namespace GUI {
 
 wxDECLARE_EVENT(EVT_VCAMERA_SWITCH, wxMouseEvent);
 wxDECLARE_EVENT(EVT_SDCARD_ABSENT_HINT, wxCommandEvent);
+wxDECLARE_EVENT(EVT_CAM_SOURCE_CHANGE, wxCommandEvent);
 
 class CameraPopup : public PopupWindow
 {
@@ -51,6 +53,9 @@ protected:
     void on_switch_recording(wxCommandEvent& event);
     void on_set_resolution();
     void sdcard_absent_hint();
+    void on_camera_source_changed(wxCommandEvent& event);
+    void handle_camera_source_change();
+    void set_custom_cam_button_state(bool state);
 
     wxWindow *  create_item_radiobox(wxString title, wxWindow *parent, wxString tooltip, int padding_left);
     void select_curr_radiobox(int btn_idx);
@@ -71,10 +76,10 @@ private:
     wxStaticText* m_text_liveview_retry;
     SwitchButton* m_switch_liveview_retry;
 #endif //BBL_RELEASE_TO_PUBLIC
-    // wxStaticText* m_custom_camera_hint;
-    // TextInput* m_custom_camera_input;
-    // Button* m_custom_camera_input_confirm;
-    // bool m_custom_camera_enabled{ false };
+    wxStaticText* m_custom_camera_hint;
+    TextInput* m_custom_camera_input;
+    Button* m_custom_camera_input_confirm;
+    bool m_custom_camera_enabled{ false };
     wxStaticText* m_text_resolution;
     wxWindow* m_resolution_options[RESOLUTION_OPTIONS_NUM];
     wxScrolledWindow *m_panel;

src/slic3r/GUI/ConfigManipulation.cpp

@@ -171,16 +171,14 @@ void ConfigManipulation::check_adaptive_pressure_advance_model(DynamicPrintConfi
         return;
 
     const auto* model = config->option<ConfigOptionStrings>("adaptive_pressure_advance_model");
-    if (model == nullptr)
+    if (model == nullptr || model->values.empty())
         return;
 
-    // Each extruder variant holds its own model.
-    std::string error;
-    for (const std::string& variant_model : model->values) {
-        error = AdaptivePAProcessor::validate_adaptive_pa_model(variant_model);
-        if (!error.empty())
-            break;
-    }
+    std::string raw_model;
+    for (const std::string& chunk : model->values)
+        raw_model += chunk;
+
+    std::string error = AdaptivePAProcessor::validate_adaptive_pa_model(raw_model);
     if (!error.empty()) {
         wxString msg_text = _L("Adaptive Pressure Advance model validation failed:\n");
         msg_text += from_u8(error);

src/slic3r/GUI/ConnectPrinter.cpp

@@ -35,9 +35,7 @@ ConnectPrinterDialog::ConnectPrinterDialog(wxWindow *parent, wxWindowID id, cons
     sizer_connect = new wxBoxSizer(wxHORIZONTAL);
 
     m_textCtrl_code = new TextInput(this, wxEmptyString);
-    // OrcaSonar uses a 12-character base32 access code. Keep this field long
-    // enough for it while retaining the existing validation for LAN codes.
-    m_textCtrl_code->GetTextCtrl()->SetMaxLength(12);
+    m_textCtrl_code->GetTextCtrl()->SetMaxLength(10);
     m_textCtrl_code->SetFont(Label::Body_14);
     m_textCtrl_code->SetCornerRadius(FromDIP(5));
     m_textCtrl_code->SetSize(wxSize(FromDIP(330), FromDIP(40)));

src/slic3r/GUI/DeviceCore/DevConfigUtil.cpp

@@ -1,7 +1,5 @@
 #include "DevConfigUtil.h"
 
-#include "slic3r/GUI/DeviceManager.hpp"
-
 #include <wx/dir.h>
 #include <boost/filesystem/operations.hpp>
 #include "../I18N.hpp"
@@ -43,19 +41,6 @@ static void _toolhead_translation_markers()
 
 std::string DevPrinterConfigUtil::m_resource_file_path = "";
 
-bool DevPrinterConfigUtil::is_printer_model_compatible(const std::string& source_model, MachineObject& machine)
-{
-    const std::string& target_model = machine.printer_type;
-    if (is_optional_printer_model_id(source_model) || is_optional_printer_model_id(target_model))
-        return true;
-
-    if (source_model == target_model)
-        return true;
-
-    const auto compatible_machine = machine.get_compatible_machine();
-    return std::find(compatible_machine.begin(), compatible_machine.end(), source_model) != compatible_machine.end();
-}
-
 
 std::map<std::string, std::string> DevPrinterConfigUtil::get_all_model_id_with_name()
 {

src/slic3r/GUI/DeviceCore/DevConfigUtil.h

@@ -25,8 +25,6 @@
 namespace Slic3r
 {
 
-class MachineObject;
-
 /// Toolhead component type (extruder / nozzle / hotend)
 enum class ToolHeadComponent {
     Extruder,
@@ -61,10 +59,6 @@ public:
     /*printer*/
     // info
     static std::map<std::string, std::string> get_all_model_id_with_name();
-    // A printer agent may not know the physical model. Keep that case optional so
-    // model compatibility checks do not turn missing identity into a hard error.
-    static bool is_printer_model_compatible(const std::string& source_model, MachineObject& machine);
-    static bool is_optional_printer_model_id(const std::string& model_id) { return model_id.empty(); }
     static std::string get_printer_type(const std::string& type_str) { return get_value_from_config<std::string>(type_str, "printer_type"); }
     static std::string get_printer_display_name(const std::string& type_str) { return get_value_from_config<std::string>(type_str, "display_name"); }
     static std::string get_printer_series_str(std::string type_str) { return get_value_from_config<std::string>(type_str, "printer_series"); }

src/slic3r/GUI/DeviceCore/DevFilaSystem.cpp

@@ -762,9 +762,9 @@ void DevFilaSystemParser::ParseV1_0(const json& jj, MachineObject* obj, DevFilaS
                             {
                                 curr_tray->remain = -1;
                             }
-                            // The tray objects are reused across status updates. Reset this
-                            // state when a previously empty slot receives a filament again.
-                            curr_tray->is_slot_placeholder = tray_it->contains("tray_slot_placeholder");
+                            if (tray_it->contains("tray_slot_placeholder")) {
+                                curr_tray->is_slot_placeholder = true;
+                            }
                             int ams_id_int = 0;
                             int tray_id_int = 0;
                             try

src/slic3r/GUI/DeviceCore/DevManager.cpp

@@ -1,10 +1,8 @@
-#include "DevManager.h"
 #include <nlohmann/json.hpp>
 
 #include <exception>
 
-#include <libslic3r/AppConfig.hpp>
-#include "CloudProvider.hpp"
+#include "DevManager.h"
 #include "DevUtil.h"
 
 // TODO: remove this include
@@ -17,8 +15,6 @@
 
 #include "libslic3r/Time.hpp"
 
-#include "IPrinterAgent.hpp"
-
 using namespace nlohmann;
 
 namespace {
@@ -50,11 +46,9 @@ namespace {
 
 namespace Slic3r
 {
-    DeviceManager::DeviceManager(NetworkAgent* agent, bool enable_refresher, AppConfig* app_config)
+    DeviceManager::DeviceManager(NetworkAgent* agent)
     {
         m_agent = agent;
-        m_app_config = app_config;
-        if (enable_refresher)
         m_refresher = new DeviceManagerRefresher(this);
 
         DevPrinterConfigUtil::InitFilePath(resources_dir());
@@ -66,14 +60,9 @@ namespace Slic3r
         }
     }
 
-    AppConfig* DeviceManager::get_app_config() const
-    {
-        return m_app_config ? m_app_config : GUI::wxGetApp().app_config;
-    }
-
     void DeviceManager::load_local_machines_from_config()
     {
-        AppConfig* config = get_app_config();
+        AppConfig* config = GUI::wxGetApp().app_config;
         if (!config)
             return;
         const auto local_machines = config->get_local_machines();
@@ -99,8 +88,9 @@ namespace Slic3r
         }
     }
 
-    void DeviceManager::update_local_machine(const MachineObject& m, AppConfig* config)
+    void DeviceManager::update_local_machine(const MachineObject& m)
     {
+        AppConfig* config = GUI::wxGetApp().app_config;
         if (config) {
             if (m.is_lan_mode_printer()) {
                 if (m.has_access_right()) {
@@ -121,7 +111,6 @@ namespace Slic3r
 
     DeviceManager::~DeviceManager()
     {
-        if (m_refresher)
         delete m_refresher;
 
         for (auto it = localMachineList.begin(); it != localMachineList.end(); it++)
@@ -182,22 +171,14 @@ namespace Slic3r
         return printer_agent ? printer_agent->get_agent_info().id : "";
     }
 
-    std::string DeviceManager::get_current_cloud_provider() const
-    {
-        const std::string agent_id = get_current_printer_agent_id();
-        if (!agent_id.empty())
-            return agent_id == BBL_PRINTER_AGENT_ID ? BBL_CLOUD_PROVIDER : ORCA_CLOUD_PROVIDER;
-        return GUI::wxGetApp().get_printer_cloud_provider();
-    }
-
     void DeviceManager::EnableMultiMachine(bool enable)
     {
         m_agent->enable_multi_machine(enable);
         m_enable_mutil_machine = enable;
     }
 
-    void DeviceManager::start_refresher() { if (m_refresher) m_refresher->Start(); }
-    void DeviceManager::stop_refresher() { if (m_refresher) m_refresher->Stop(); }
+    void DeviceManager::start_refresher() { m_refresher->Start(); }
+    void DeviceManager::stop_refresher() { m_refresher->Stop(); }
 
 
     void DeviceManager::keep_alive()
@@ -284,10 +265,6 @@ namespace Slic3r
             /* update userMachineList info */
             auto it = userMachineList.find(dev_id);
             if (it != userMachineList.end()) {
-                // A reused entry may have been created while another printer agent was active.
-                // The response was obtained through the current agent, so move ownership with
-                // the entry; otherwise agent-scoped lists hide it after a preset switch.
-                it->second->printer_agent_id = get_current_printer_agent_id();
                 if (it->second->get_dev_ip() != dev_ip ||
                     it->second->bind_state != bind_state ||
                     it->second->bind_sec_link != sec_link ||
@@ -314,15 +291,10 @@ namespace Slic3r
 
             /* update localMachineList */
             it = localMachineList.find(dev_id);
-            AppConfig* config = get_app_config();
-
             if (it != localMachineList.end()) {
                 // update properties
                 /* ip changed */
                 obj = it->second;
-                // A reused LAN entry may have been discovered while another printer agent was
-                // active. The current discovery message establishes ownership for this agent.
-                obj->printer_agent_id = get_current_printer_agent_id();
 
                 if (obj->get_dev_ip().compare(dev_ip) != 0) {
                     if ( connection_name.empty() ) {
@@ -412,6 +384,7 @@ namespace Slic3r
                 obj->m_is_online = true;
 
                 //load access code
+                AppConfig* config = Slic3r::GUI::wxGetApp().app_config;
                 if (config) {
                     obj->set_access_code(get_access_code_with_legacy_fallback(config, dev_id, obj->printer_agent_id), false);
                 }
@@ -434,7 +407,7 @@ namespace Slic3r
                     fire_lifecycle_event(LifecycleEvent::DeviceDiscovered, ctx);
                 }
             }
-            update_local_machine(*obj, config);
+            update_local_machine(*obj);
         }
         catch (...) {
             ;
@@ -449,9 +422,6 @@ namespace Slic3r
         auto           it = localMachineList.find(machine.dev_id);
         if (it != localMachineList.end()) {
             obj = it->second;
-            // insert_local_device is called by the active agent, so a reused entry must follow
-            // that agent as well; otherwise the agent-scoped printer list hides it.
-            obj->printer_agent_id = get_current_printer_agent_id();
         } else {
             obj = new MachineObject(this, m_agent, machine.dev_name, machine.dev_id, machine.dev_ip);
             obj->printer_agent_id = get_current_printer_agent_id();
@@ -469,16 +439,11 @@ namespace Slic3r
         obj->last_alive = Slic3r::Utils::get_current_time_utc();
         obj->set_access_code(access_code, false);
 
-        update_local_machine(*obj, get_app_config());
+        update_local_machine(*obj);
 
         return obj;
     }
 
-    void DeviceManager::update_local_machine(const MachineObject& m)
-    {
-        update_local_machine(m, GUI::wxGetApp().app_config);
-    }
-
     int DeviceManager::query_bind_status(std::string& msg, const std::string& provider)
     {
         if (!m_agent)
@@ -549,7 +514,7 @@ namespace Slic3r
 
     MachineObject* DeviceManager::get_my_machine(std::string dev_id)
     {
-        auto list = get_my_machine_list(get_current_printer_agent_id());
+        auto list = get_my_machine_list();
         auto it = list.find(dev_id);
         if (it != list.end())
         {
@@ -586,15 +551,25 @@ namespace Slic3r
         OnSelectedMachineChanged(previous_selected_machine, selected_machine);
     }
 
-    void DeviceManager::clear_other_devices()
+    void DeviceManager::clear_other_devices(const std::string& target_agent_id)
     {
-        // Device entries are now scoped by printer_agent_id when they are presented. Keep
-        // agent-owned discoveries across a switch so agents without automatic discovery (and
-        // plugins whose devices have not received an access code yet) do not lose their list.
-        // Entries without an owner are legacy/unscoped and cannot safely be shown.
+        // why: on agent swap, keep "My Devices" but drop the transient "Other Devices"
+        // Those belong to the previous agent's network scan; the new agent's start_discovery re-populates its own.
+        //
+        // Also drop "My Devices" stamped by a different agent than the one we're swapping to
+        // (target_agent_id, passed by the caller since the live agent hasn't been repointed yet
+        // at this point): otherwise a device first discovered under agent A survives every swap
+        // with a stale printer_agent_id, stays hidden from every agent's filtered list, and only
+        // gets re-tagged if something happens to delete and re-create it (e.g. account logout).
+        // Dropping it here instead lets the new agent's start_discovery re-insert and re-stamp it
+        // like any other fresh device.
+        const auto my = get_my_machine_list();
         for (auto it = localMachineList.begin(); it != localMachineList.end();)
         {
-            if (!it->second || it->second->printer_agent_id.empty())
+            const bool is_my_device = my.find(it->first) != my.end();
+            const bool agent_mismatch = !target_agent_id.empty() && it->second &&
+                                         it->second->printer_agent_id != target_agent_id;
+            if (!is_my_device || agent_mismatch)
             {
                 delete it->second;
                 it = localMachineList.erase(it);
@@ -610,22 +585,8 @@ namespace Slic3r
     {
         BOOST_LOG_TRIVIAL(info) << "set_selected_machine=" << dev_id
             << " cur_selected=" << selected_machine;
-        auto my_machine_list = get_my_machine_list(get_current_printer_agent_id());
+        auto my_machine_list = get_my_machine_list();
         auto it = my_machine_list.find(dev_id);
-        BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: set_selected_machine lookup dev_id=" << dev_id
-                                << " found=" << (it != my_machine_list.end())
-                                << " my_machine_count=" << my_machine_list.size()
-                                << " current_agent=" << get_current_printer_agent_id()
-                                << " provider=" << GUI::wxGetApp().get_printer_cloud_provider();
-        if (it != my_machine_list.end() && it->second) {
-            BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: target machine dev_id=" << it->second->get_dev_id()
-                                    << " printer_agent_id=" << it->second->printer_agent_id
-                                    << " connection_type=" << it->second->connection_type()
-                                    << " dev_connection_type=" << it->second->dev_connection_type;
-        } else if (!dev_id.empty()) {
-            BOOST_LOG_TRIVIAL(warning) << "Orca diagnostic: target machine was not found in the current agent's machine list";
-            return false;
-        }
 
         // disconnect last if dev_id difference from previous one
         auto last_selected = my_machine_list.find(selected_machine);
@@ -636,9 +597,7 @@ namespace Slic3r
                 m_agent->disconnect_printer();
             }
             else if (last_selected->second->connection_type() == "cloud") {
-                const int result = m_agent->set_user_selected_machine("");
-                BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: cleared previous cloud selection dev_id="
-                                        << selected_machine << " result=" << result;
+                m_agent->set_user_selected_machine("");
             }
         }
 
@@ -673,7 +632,11 @@ namespace Slic3r
                         m_agent->disconnect_printer();
                         it->second->reset();
 
-                        it->second->connect();
+#if !BBL_RELEASE_TO_PUBLIC
+                        it->second->connect(Slic3r::GUI::wxGetApp().app_config->get("enable_ssl_for_mqtt") == "true" ? true : false);
+#else
+                        it->second->connect(it->second->local_use_ssl);
+#endif
                         it->second->set_lan_mode_connection_state(true);
                     }
                 }
@@ -686,16 +649,18 @@ namespace Slic3r
                     {
                         // diff dev_id, cloud => set_user_selected_machine(new)
                         BOOST_LOG_TRIVIAL(info) << "set_selected_machine: select new cloud machine, dev_id =" << dev_id;
-                        const int result = m_agent->set_user_selected_machine(dev_id);
-                        BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: set new cloud selection dev_id="
-                                                << dev_id << " result=" << result;
+                        m_agent->set_user_selected_machine(dev_id);
                         it->second->reset();
                     }
                     else
                     {
                         BOOST_LOG_TRIVIAL(info) << "set_selected_machine: select new lan machine, dev_id =" << dev_id;
                         it->second->reset();
-                        it->second->connect();
+#if !BBL_RELEASE_TO_PUBLIC
+                        it->second->connect(Slic3r::GUI::wxGetApp().app_config->get("enable_ssl_for_mqtt") == "true" ? true : false);
+#else
+                        it->second->connect(it->second->local_use_ssl);
+#endif
                         it->second->set_lan_mode_connection_state(true);
                     }
                 }
@@ -712,8 +677,6 @@ namespace Slic3r
 
         selected_machine = dev_id;
         record_user_last_machine(selected_machine);
-        BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: DeviceManager selection complete selected_machine="
-                                << selected_machine;
         return true;
     }
 
@@ -744,9 +707,7 @@ namespace Slic3r
             dev_list.push_back(it->first);
             BOOST_LOG_TRIVIAL(trace) << "add_user_subscribe: " << it->first;
         }
-        const int result = m_agent->add_subscribe(dev_list);
-        BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: add_user_subscribe count=" << dev_list.size()
-                                << " result=" << result;
+        m_agent->add_subscribe(dev_list);
     }
 
 
@@ -759,9 +720,7 @@ namespace Slic3r
             dev_list.push_back(it->first);
             BOOST_LOG_TRIVIAL(trace) << "del_user_subscribe: " << it->first;
         }
-        const int result = m_agent->del_subscribe(dev_list);
-        BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: del_user_subscribe count=" << dev_list.size()
-                                << " result=" << result;
+        m_agent->del_subscribe(dev_list);
     }
 
     void DeviceManager::subscribe_device_list(std::vector<std::string> dev_list)
@@ -880,24 +839,7 @@ namespace Slic3r
         try
         {
             json j = json::parse(body);
-
-            const bool has_request_context = j.contains("provider") && j.contains("agent_id") && j.contains("generation");
-            const std::string current_provider = get_current_cloud_provider();
-            const std::string provider = j.contains("provider") ? j["provider"].get<std::string>()
-                                                                   : current_provider;
-            const std::string agent_id = j.contains("agent_id") ? j["agent_id"].get<std::string>()
-                                                                  : get_current_printer_agent_id();
-            const std::uint64_t generation = j.value("generation", std::uint64_t(0));
-
-            if (has_request_context &&
-                (provider != current_provider ||
-                 agent_id != get_current_printer_agent_id() ||
-                 generation != (m_agent ? m_agent->get_user_machine_list_generation() : 0))) {
-                BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ": ignoring stale response provider="
-                                         << provider << " agent_id=" << agent_id
-                                         << " generation=" << generation;
-                return;
-            }
+            const std::string provider = GUI::wxGetApp().get_printer_cloud_provider();
 
 #if !BBL_RELEASE_TO_PUBLIC
             BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ": " << j;
@@ -920,14 +862,11 @@ namespace Slic3r
                         /* update field */
                         obj = iter->second;
                         obj->set_dev_id(dev_id);
-                        // A device can be rediscovered by a different agent after a preset
-                        // switch while retaining the same MachineObject instance.
-                        obj->printer_agent_id = agent_id;
                     }
                     else
                     {
                         obj = new MachineObject(this, m_agent, "", "", "");
-                        obj->printer_agent_id = agent_id;
+                        obj->printer_agent_id = get_current_printer_agent_id();
                         if (m_agent)
                         {
                             obj->set_bind_status(m_agent->get_user_name(provider));
@@ -935,20 +874,13 @@ namespace Slic3r
 
                         if (obj->get_dev_ip().empty())
                         {
-                            if (AppConfig* config = get_app_config())
-                                obj->get_dev_ip() = config->get("ip_address", dev_id);
+                            obj->get_dev_ip() = Slic3r::GUI::wxGetApp().app_config->get("ip_address", dev_id);
                         }
                         userMachineList.insert(std::make_pair(dev_id, obj));
                     }
 
                     if (!obj) continue;
 
-                    // Orca cloud printers are only ever delivered through this REST
-                    // account list; tag them so DeviceManager's cloud/lan branches
-                    // (subscribe + deselect in set_selected_machine) treat them right.
-                    if (provider == ORCA_CLOUD_PROVIDER)
-                        obj->dev_connection_type = "cloud";
-
                     if (!elem["dev_id"].is_null())
                         obj->set_dev_id(elem["dev_id"].get<std::string>());
                     if (!elem["dev_name"].is_null())
@@ -980,12 +912,6 @@ namespace Slic3r
                         acc_code.erase(std::remove(acc_code.begin(), acc_code.end(), '\n'), acc_code.end());
                         obj->set_access_code(acc_code);
                     }
-
-                    BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: parsed cloud machine dev_id=" << dev_id
-                                            << " name=" << obj->get_dev_name()
-                                            << " agent_id=" << obj->printer_agent_id
-                                            << " connection_type=" << obj->connection_type()
-                                            << " online=" << obj->m_is_online;
                 }
 
                 //remove MachineObject from userMachineList
@@ -1001,9 +927,6 @@ namespace Slic3r
                         iterat++;
                     }
                 }
-                BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: parse_user_print_info complete provider=" << provider
-                                        << " parsed_count=" << new_list.size()
-                                        << " stored_count=" << userMachineList.size();
             }
         }
         catch (std::exception& e)
@@ -1020,29 +943,25 @@ namespace Slic3r
         unsigned int http_code;
         std::string body;
         int result = m_agent->get_user_print_info(&http_code, &body, provider);
-        BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: get_user_print_info provider=" << provider
-                                << " result=" << result << " http_code=" << http_code
-                                << " body_bytes=" << body.size();
         if (result == 0)
         {
             // parse_user_print_info and on_machine_alive (SSDP for discovery) both mutate the same userMachineList map.
             // on_machine_alive mutates the map on the UI thread, do the same for parse_user_print_info.
-            BOOST_LOG_TRIVIAL(trace) << "Orca diagnostic: queueing parse_user_print_info on UI thread";
             Slic3r::GUI::wxGetApp().CallAfter([this, body]() { parse_user_print_info(body); });
         }
     }
 
     void DeviceManager::record_user_last_machine(const std::string& dev_id)
     {
-        if (AppConfig* config = get_app_config()) {
-            config->set("user_last_selected_machine", dev_id);
+        if (Slic3r::GUI::wxGetApp().app_config) {
+            Slic3r::GUI::wxGetApp().app_config->set("user_last_selected_machine", dev_id);
         }
     }
 
     std::string DeviceManager::get_user_last_machine() const
     {
-        if (AppConfig* config = get_app_config()) {
-            const auto& user_last_machine = config->get("user_last_selected_machine");
+        if (Slic3r::GUI::wxGetApp().app_config) {
+            const auto& user_last_machine = Slic3r::GUI::wxGetApp().app_config->get("user_last_selected_machine");
             if (!user_last_machine.empty()) {
                 return user_last_machine;
             } else if (m_agent) {

src/slic3r/GUI/DeviceCore/DevManager.h

@@ -12,7 +12,6 @@ namespace Slic3r
 struct BBLocalMachine;
 class MachineObject;
 class NetworkAgent;
-class AppConfig;
 
 namespace GUI {
 class GUI_App;
@@ -25,7 +24,6 @@ class DeviceManager
     friend class DeviceManagerRefresher;
 private:
     NetworkAgent* m_agent{ nullptr };
-    AppConfig* m_app_config{ nullptr };
     DeviceManagerRefresher* m_refresher{ nullptr };
 
     bool m_enable_mutil_machine = false;
@@ -37,13 +35,11 @@ private:
     std::map<std::string, MachineObject*> userMachineList;      /* dev_id -> MachineObject*  cloudMachine of User */
 
 public:
-    DeviceManager(NetworkAgent* agent = nullptr, bool enable_refresher = true,
-                  AppConfig* app_config = nullptr);
+    DeviceManager(NetworkAgent* agent = nullptr);
     ~DeviceManager();
 
 public:
     NetworkAgent* get_agent() const { return m_agent; }
-    AppConfig* get_app_config() const;
     void set_agent(NetworkAgent* agent);
 
     void start_refresher();
@@ -78,9 +74,10 @@ public:
     void erase_user_machine(std::string dev_id) { userMachineList.erase(dev_id); }
     void clean_user_info(bool keep_local_selection = false);
 
-    // Retain agent-owned LAN discoveries across a switch; the active-agent list filter keeps
-    // entries from other agents hidden while allowing them to reappear when switched back.
-    void clear_other_devices();
+    // target_agent_id: id of the agent being swapped to (empty = no agent-mismatch check,
+    // just the original "drop Other Devices" behavior). Pass the incoming agent's id, not the
+    // live one - this runs before the live agent is repointed.
+    void clear_other_devices(const std::string& target_agent_id = "");
 
     void load_last_machine();
     void update_user_machine_list_info(const std::string& provider);
@@ -125,7 +122,6 @@ private:
 
     void keep_alive();
     void check_pushing();
-    std::string get_current_cloud_provider() const;
 
     void OnMachineBindStateChanged(MachineObject* obj, const std::string& new_state);
     void OnSelectedMachineChanged(const std::string& pre_dev_id, const std::string& new_dev_id);
@@ -138,7 +134,6 @@ public:
         std::string connection_type, std::string bind_state, std::string version,
         std::string access_code);
     static void update_local_machine(const MachineObject& m);
-    static void update_local_machine(const MachineObject& m, AppConfig* config);
 };
 
 class DeviceManagerRefresher : public wxObject

src/slic3r/GUI/DeviceManager.cpp

@@ -4,7 +4,6 @@
 #include "I18N.hpp"
 #include "libslic3r/Time.hpp"
 #include "libslic3r/Thread.hpp"
-#include "slic3r/Utils/Http.hpp"
 #include "slic3r/Utils/NetworkAgent.hpp"
 #include "slic3r/plugin/PluginManager.hpp"
 #include "slic3r/Utils/NetworkAgentFactory.hpp"
@@ -18,7 +17,6 @@
 #include "ReleaseNote.hpp"
 #include <thread>
 #include <mutex>
-#include <charconv>
 #include <codecvt>
 #include <boost/foreach.hpp>
 #include <boost/typeof/typeof.hpp>
@@ -56,7 +54,6 @@
 #include "DeviceCore/DevStatus.h"
 #include "DeviceCore/DevUpgrade.h"
 
-#include "IPrinterAgent.hpp"
 
 #define CALI_DEBUG
 #define MINUTE_30 1800000    //ms
@@ -383,22 +380,8 @@ NozzleVolumeType convert_to_nozzle_type(const std::string &str)
 wxString MachineObject::get_printer_type_display_str() const
 {
     std::string display_name = DevPrinterConfigUtil::get_printer_display_name(printer_type);
-
-    // Bambu printers use m_resource_file_path + "/printers/" + type_str + ".json", which is a semantic that only works for their profiles.
-    // For any other profile, we can simply consult preset bundle if the model_id exists. 
-    if (display_name.empty()) {
-        for (const auto& [vendor_id, vendor] : GUI::wxGetApp().preset_bundle->vendors) {
-            for (const auto& model : vendor.models) {
-                if (printer_type == model.model_id)
-                    display_name = model.name;
-            }
-        }
-    }
-
     if (!display_name.empty())
         return display_name;
-    else if (printer_type == "orcasonar")
-        return "OrcaSonar Printer";
     else
         return _L("Unknown");
 }
@@ -485,7 +468,7 @@ void MachineObject::set_access_code(std::string code, bool only_refresh)
 {
     this->access_code = code;
     if (only_refresh) {
-        AppConfig* config = m_manager ? m_manager->get_app_config() : GUI::wxGetApp().app_config;
+        AppConfig* config = GUI::wxGetApp().app_config;
         if (config) {
             if (is_lan_mode_printer()) {
                 // why: LAN codes are scoped via BBLocalMachine::access_code, keyed by dev_id and
@@ -498,7 +481,7 @@ void MachineObject::set_access_code(std::string code, bool only_refresh)
                 // fresh from the cloud API's current response, so there's no cross-agent leakage
                 // risk to guard against there.
                 if (!code.empty()) {
-                    DeviceManager::update_local_machine(*this, config);
+                    DeviceManager::update_local_machine(*this);
                 } else {
                     // Only patch an existing record's code - don't persist a brand-new
                     // never-bound entry just because set_access_code("") was called on it.
@@ -1365,6 +1348,7 @@ int MachineObject::command_get_access_code() {
     return this->publish_json(j);
 }
 
+
 int MachineObject::command_request_push_all(bool request_now)
 {
     auto curr_time = std::chrono::system_clock::now();
@@ -1496,20 +1480,26 @@ int MachineObject::command_upgrade_module(std::string url, std::string module_ty
 
 int MachineObject::command_xyz_abs()
 {
-    if (!m_agent) return -1;
-    return command_with_dialog(m_agent->command_xyz_abs(get_dev_id(), MachineObject::m_sequence_id++, is_lan_mode_printer()));
+    return this->publish_gcode("G90 \n");
 }
 
 int MachineObject::command_auto_leveling()
 {
-    if (!m_agent) return -1;
-    return command_with_dialog(m_agent->command_auto_leveling(get_dev_id(), MachineObject::m_sequence_id++, is_lan_mode_printer()));
+    return this->publish_gcode("G29 \n");
 }
 
 int MachineObject::command_go_home()
 {
-    if (!m_agent) return -1;
-    return command_with_dialog(m_agent->command_go_home(get_dev_id(), this->is_in_printing(), m_support_mqtt_homing, MachineObject::m_sequence_id++, is_lan_mode_printer()));
+    if (m_support_mqtt_homing)
+    {
+        json j;
+        j["print"]["command"] = "back_to_center";
+        j["print"]["sequence_id"] = std::to_string(MachineObject::m_sequence_id++);
+        return this->publish_json(j);
+    }
+
+    // gcode command
+    return this->is_in_printing() ? this->publish_gcode("G28 X\n") : this->publish_gcode("G28 \n");
 }
 
 int MachineObject::command_task_partskip(std::vector<int> part_ids)
@@ -1631,14 +1621,23 @@ int MachineObject::command_stop_buzzer()
 
 int MachineObject::command_set_bed(int temp)
 {
-    if (!m_agent) return -1;
-    return command_with_dialog(m_agent->command_set_bed(get_dev_id(), temp, m_support_mqtt_bet_ctrl, MachineObject::m_sequence_id++, is_lan_mode_printer()));
+    if (m_support_mqtt_bet_ctrl)
+    {
+        json j;
+        j["print"]["command"] = "set_bed_temp";
+        j["print"]["temp"] = temp;
+        j["print"]["sequence_id"] = std::to_string(MachineObject::m_sequence_id++);
+        return this->publish_json(j);
+    }
+
+    std::string gcode_str = (boost::format("M140 S%1%\n") % temp).str();
+    return this->publish_gcode(gcode_str);
 }
 
 int MachineObject::command_set_nozzle(int temp)
 {
-    if (!m_agent) return -1;
-    return command_with_dialog(m_agent->command_set_nozzle(get_dev_id(), temp, MachineObject::m_sequence_id++, is_lan_mode_printer()));
+    std::string gcode_str = (boost::format("M104 S%1%\n") % temp).str();
+    return this->publish_gcode(gcode_str);
 }
 
 int MachineObject::command_set_nozzle_new(int nozzle_id, int temp)
@@ -1743,8 +1742,9 @@ int MachineObject::command_ams_user_settings(bool start_read_opt, bool tray_read
 
 int MachineObject::command_ams_calibrate(int ams_id)
 {
-    if (!m_agent) return -1;
-    return command_with_dialog(m_agent->command_ams_calibrate(get_dev_id(), ams_id, MachineObject::m_sequence_id++, is_lan_mode_printer()));
+    std::string gcode_cmd = (boost::format("M620 C%1% \n") % ams_id).str();
+    BOOST_LOG_TRIVIAL(trace) << "ams_debug: gcode_cmd" << gcode_cmd;
+    return this->publish_gcode(gcode_cmd);
 }
 
 int MachineObject::command_ams_filament_settings(int ams_id, int slot_id, std::string filament_id, std::string setting_id, std::string tray_color, std::string tray_type, int nozzle_temp_min, int nozzle_temp_max)
@@ -1780,23 +1780,29 @@ int MachineObject::command_ams_filament_settings(int ams_id, int slot_id, std::s
     return this->publish_json(j);
 }
 
-int MachineObject::command_ams_refresh_rfid(int ams_id, int slot_id)
+int MachineObject::command_ams_refresh_rfid(std::string tray_id)
 {
-    if (!m_agent) return -1;
-    return command_with_dialog(m_agent->command_ams_refresh_rfid(get_dev_id(), ams_id, slot_id, MachineObject::m_sequence_id++, is_lan_mode_printer()));
+    std::string gcode_cmd = (boost::format("M620 R%1% \n") % tray_id).str();
+    BOOST_LOG_TRIVIAL(trace) << "ams_debug: gcode_cmd" << gcode_cmd;
+    return this->publish_gcode(gcode_cmd);
 }
 
-int MachineObject::command_start_camera()
+int MachineObject::command_ams_refresh_rfid2(int ams_id,  int slot_id)
 {
-    if (!m_agent) return -1;
-    return m_agent->command_start_camera(get_dev_id());
+    json j;
+    j["print"]["command"]       = "ams_get_rfid";
+    j["print"]["sequence_id"]   = std::to_string(MachineObject::m_sequence_id++);
+    j["print"]["ams_id"]        = ams_id;
+    j["print"]["slot_id"]       = slot_id;
+    return this->publish_json(j);
 }
 
 
 int MachineObject::command_ams_select_tray(std::string tray_id)
 {
-    if (!m_agent) return -1;
-    return command_with_dialog(m_agent->command_ams_select_tray(get_dev_id(), tray_id, MachineObject::m_sequence_id++, is_lan_mode_printer()));
+    std::string gcode_cmd = (boost::format("M620 P%1% \n") % tray_id).str();
+    BOOST_LOG_TRIVIAL(trace) << "ams_debug: gcode_cmd" << gcode_cmd;
+    return this->publish_gcode(gcode_cmd);
 }
 
 int MachineObject::command_ams_control(std::string action)
@@ -1955,10 +1961,47 @@ int MachineObject::command_ams_air_print_detect(bool air_print_detect)
 
 int MachineObject::command_axis_control(std::string axis, double unit, double input_val, int speed)
 {
-    if (!m_agent) return -1;
-    return command_with_dialog(m_agent->command_axis_control(get_dev_id(), axis, unit, input_val, speed, is_core_xy(),
-                                                             m_support_mqtt_axis_control, MachineObject::m_sequence_id++,
-                                                             is_lan_mode_printer()));
+    if (m_support_mqtt_axis_control)
+    {
+        int dir = input_val > 0 ? 1 : -1;
+        // i3-arch printers move the bed for Y/Z, so the on-screen direction is
+        // reversed — same negation the g-code fallback below applies.
+        if (!is_core_xy() && (axis.compare("Y") == 0 || axis.compare("Z") == 0)) {
+            dir = -dir;
+        }
+
+        json j;
+        j["print"]["command"] = "xyz_ctrl";
+        j["print"]["axis"] = axis;
+        j["print"]["dir"] = dir;
+        j["print"]["mode"] = (std::abs(input_val) >= 10) ? 1 : 0;
+        j["print"]["sequence_id"] = std::to_string(MachineObject::m_sequence_id++);
+        return this->publish_json(j);
+    }
+
+    double value = input_val;
+    if (!is_core_xy()) {
+        if ( axis.compare("Y") == 0
+            || axis.compare("Z")  == 0) {
+            value = -1.0 * input_val;
+        }
+    }
+
+    char cmd[256];
+    if (axis.compare("X") == 0
+        || axis.compare("Y") == 0
+        || axis.compare("Z") == 0) {
+        sprintf(cmd, "M211 S \nM211 X1 Y1 Z1\nM1002 push_ref_mode\nG91 \nG1 %s%0.1f F%d\nM1002 pop_ref_mode\nM211 R\n", axis.c_str(), value * unit, speed);
+    }
+    else if (axis.compare("E") == 0) {
+        sprintf(cmd, "M83 \nG0 %s%0.1f F%d\n", axis.c_str(), value * unit, speed);
+    }
+    else {
+        return -1;
+    }
+
+
+    return this->publish_gcode(cmd);
 }
 
 int MachineObject::command_extruder_control(int nozzle_id, double val)
@@ -2583,12 +2626,7 @@ void MachineObject::reset()
             vt_slot.erase(vt_slot.begin() + 1);
         }
     }
-    // why: reset reuses MachineObject, so release its lazy subtask
-    // before dropping the pointer to prevent reconnect leaks.
-    if (subtask_) {
-        delete subtask_;
     subtask_ = nullptr;
-    }
     has_extra_flow_type = false;
     m_partskip_ids.clear();
 }
@@ -2606,63 +2644,15 @@ void MachineObject::set_print_state(std::string status)
     }
 }
 
-// why: printer agents can report progress without BBL cloud task identity.
-void MachineObject::update_print_progress(const json& value)
-{
-    if (value.is_string()) {
-        const std::string progress = value.get<std::string>();
-        int              parsed_progress;
-        const auto       result = std::from_chars(progress.data(), progress.data() + progress.size(), parsed_progress);
-        if (result.ec != std::errc{} || result.ptr != progress.data() + progress.size())
-            return;
-        mc_print_percent = parsed_progress;
-    } else if (value.is_number_integer())
-        mc_print_percent = value.get<int>();
-    else
-        return;
-
-    if (BBLSubTask* curr_task = get_subtask())
-        curr_task->task_progress = mc_print_percent;
-}
-
-int MachineObject::connect()
+int MachineObject::connect(bool use_openssl)
 {
     if (get_dev_ip().empty()) return -1;
-    std::string username = m_agent ? m_agent->default_lan_username() : std::string();
+    std::string username = "bblp";
     std::string password = get_access_code();
 
-    std::string port;
-    std::string input = get_dev_ip();
-
-    const bool use_ssl = input.rfind("https", 0) == 0;
-
-    // This strips out the http/https prefix
-    std::string host = Http::get_host_from_url(input, &port);
-    std::string ca_file;
-
-    if (GUI::wxGetApp().preset_bundle) {
-        const auto& config = GUI::wxGetApp().preset_bundle->printers.get_edited_preset().config;
-        if (port.empty())
-            port = config.opt_string("printhost_port");
-        ca_file = config.opt_string("printhost_cafile");
-    }
-
-    if (host.empty())
-        host = get_dev_ip();
-
-
     if (m_agent) {
         try {
-            PrinterConnectionParams params{
-                get_dev_id(),
-                host,
-                port,
-                username,
-                password,
-                use_ssl,
-                ca_file
-            };
-            return m_agent->connect_printer(params);
+            return m_agent->connect_printer(get_dev_id(), get_dev_ip(), username, password, use_openssl);
         } catch (...) {
             ;
         }
@@ -2778,14 +2768,6 @@ int MachineObject::publish_json(const json& json_item, int qos, int flag)
         BOOST_LOG_TRIVIAL(error) << "publish_json: " << json_item.dump() << " code: " << rtn;
     }
 
-    // why: the agent is the only thing that knows what it can translate, so it reports
-    // not-supported in its return value and this - the single funnel every command_* builder
-    // passes through - is the one place that turns it into something the user sees. No list of
-    // unsupported commands is needed anywhere: an agent that has no case for a command says so.
-    if (rtn == ORCA_NETWORK_ERR_CMD_NOT_SUPPORTED || rtn == ORCA_NETWORK_ERR_CAP_NOT_AVAILABLE) {
-        show_unsupported_dlg(rtn);
-    }
-
     return rtn;
 }
 
@@ -3104,13 +3086,6 @@ int MachineObject::parse_json(std::string tunnel, std::string payload, bool key_
             }
         } catch (...) {}
 
-        try {
-            if (j.contains("info"))
-                parse_new_info2(j["info"]);
-        } catch (...) {
-            BOOST_LOG_TRIVIAL(error) << "parse_json: failed to parse OrcaSonar capability info";
-        }
-
         try {
             if (auto ptr = m_fila_system->GetAmsFirmwareSwitch().lock()) {
                 ptr->ParseFirmwareSwitch(j);
@@ -3363,7 +3338,10 @@ int MachineObject::parse_json(std::string tunnel, std::string payload, bool key_
                         print_type = jj["print_type"].get<std::string>();
                     }
                     if (jj.contains("mc_percent")) {
-                        update_print_progress(jj["mc_percent"]);
+                        if (jj["mc_percent"].is_string())
+                            mc_print_percent = stoi(j["print"]["mc_percent"].get<std::string>());
+                        else if (jj["mc_percent"].is_number_integer())
+                            mc_print_percent = j["print"]["mc_percent"].get<int>();
                     }
                     if (jj.contains("mc_print_sub_stage")) {
                         if (jj["mc_print_sub_stage"].is_number_integer())
@@ -3533,9 +3511,6 @@ int MachineObject::parse_json(std::string tunnel, std::string payload, bool key_
                             this->task_id_ = jj["task_id"].get<std::string>();
                         }
 
-                        if (jj.contains("thumbnail_url") && jj["thumbnail_url"].is_string())
-                            m_agent_thumbnail_url = jj["thumbnail_url"].get<std::string>();
-
                         if (jj.contains("job_attr")) {
                             int jobAttr = jj["job_attr"].get<int>();
                             jobState_ =  get_flag_bits(jobAttr, 4, 4);
@@ -3581,6 +3556,7 @@ int MachineObject::parse_json(std::string tunnel, std::string payload, bool key_
                         update_slice_info(jj["project_id"].get<std::string>(), jj["profile_id"].get<std::string>(), jj["subtask_id"].get<std::string>(), plate_index);
                         BBLSubTask* curr_task = get_subtask();
                         if (curr_task) {
+                            curr_task->task_progress = mc_print_percent;
                             curr_task->printing_status = print_status;
                             curr_task->task_id = jj["subtask_id"].get<std::string>();
                         }
@@ -3883,7 +3859,6 @@ int MachineObject::parse_json(std::string tunnel, std::string payload, bool key_
                                         has_ipcam = true;
                                     } else {
                                         has_ipcam = false;
-                                        webcam_stream_url.clear();
                                     }
                                 }
                                 if (ipcam.contains("resolution")) {
@@ -3918,9 +3893,6 @@ int MachineObject::parse_json(std::string tunnel, std::string payload, bool key_
                                     liveview_local = local_rtsp_url.empty() ? LVL_None : local_rtsp_url == "disable"
                                             ? LVL_Disable : boost::algorithm::starts_with(local_rtsp_url, "rtsps") ? LVL_Rtsps : LVL_Rtsp;
                                 }
-                                if (ipcam.contains("stream_url") && ipcam["stream_url"].is_string()) {
-                                    webcam_stream_url = ipcam["stream_url"].get<std::string>();
-                                }
                                 if (ipcam.contains("tutk_server")) {
                                     tutk_state = ipcam["tutk_server"].get<std::string>();
                                 }
@@ -4679,7 +4651,7 @@ int MachineObject::parse_json(std::string tunnel, std::string payload, bool key_
     if (diff.count() > 10.0f) {
         BOOST_LOG_TRIVIAL(trace) << "parse_json timeout = " << diff.count();
     }
-    DeviceManager::update_local_machine(*this, m_manager ? m_manager->get_app_config() : GUI::wxGetApp().app_config);
+    DeviceManager::update_local_machine(*this);
 
     return 0;
 }
@@ -5488,86 +5460,6 @@ void MachineObject::parse_new_info(json print)
     }
 }
 
-void MachineObject::parse_new_info2(const json& info)
-{
-    if (!info.is_object() || info.value("command", "") != "get_capabilities")
-        return;
-
-    const auto capabilities_it = info.find("capabilities");
-    if (capabilities_it == info.end() || !capabilities_it->is_object())
-        return;
-    const auto flags_it = capabilities_it->find("flags");
-    if (flags_it == capabilities_it->end() || !flags_it->is_object())
-        return;
-
-    const json& flags = *flags_it;
-    BOOST_LOG_TRIVIAL(info) << "parse_new_info2: OrcaSonar capability flags=" << flags.dump();
-
-    auto parse_bool = [&flags](const char* name, bool& target) {
-        const auto it = flags.find(name);
-        if (it != flags.end() && it->is_boolean())
-            target = it->get<bool>();
-    };
-
-    parse_bool("support_send_to_sd", is_support_send_to_sdcard);
-    parse_bool("support_filament_backup", is_support_filament_backup);
-    parse_bool("support_update_remain", is_support_update_remain);
-    parse_bool("support_auto_recovery_step_loss", is_support_auto_recovery_step_loss);
-    parse_bool("support_ams_humidity", is_support_ams_humidity);
-    parse_bool("support_prompt_sound", is_support_prompt_sound);
-    parse_bool("support_filament_tangle_detect", is_support_filament_tangle_detect);
-    parse_bool("support_1080dpi", is_support_1080dpi);
-    parse_bool("support_cloud_print_only", is_support_cloud_print_only);
-    parse_bool("support_command_ams_switch", is_support_command_ams_switch);
-    parse_bool("support_mqtt_alive", is_support_mqtt_alive);
-    parse_bool("support_motor_noise_cali", is_support_motor_noise_cali);
-    parse_bool("support_timelapse", is_support_timelapse);
-    parse_bool("support_user_preset", is_support_user_preset);
-    parse_bool("support_refresh_nozzle", is_support_refresh_nozzle);
-    parse_bool("support_flow_calibration", is_support_flow_calibration);
-    parse_bool("support_build_plate_marker_detect", is_support_build_plate_marker_detect);
-    parse_bool("support_nozzle_blob_detect", is_support_nozzle_blob_detection);
-
-    if (!m_manager->IsMultiMachineEnabled() && !is_support_agora)
-        parse_bool("support_tunnel_mqtt", is_support_tunnel_mqtt);
-
-    const auto bed_leveling_it = flags.find("support_bed_leveling");
-    if (bed_leveling_it != flags.end() && bed_leveling_it->is_number_integer())
-        is_support_bed_leveling = bed_leveling_it->get<int>();
-
-    auto copy_bool = [&flags](json& target, const char* name) {
-        const auto it = flags.find(name);
-        if (it != flags.end() && it->is_boolean())
-            target[name] = *it;
-    };
-
-    // The capability manifest uses an object for this range, while the legacy
-    // DeviceCore parser consumes a boolean plus a two-element range array.
-    json device_config;
-    copy_bool(device_config, "support_chamber");
-    copy_bool(device_config, "support_first_layer_inspect");
-    copy_bool(device_config, "support_ai_monitoring");
-    copy_bool(device_config, "support_lidar_calibration");
-    const auto chamber_edit_it = flags.find("support_chamber_temp_edit");
-    if (chamber_edit_it != flags.end() && chamber_edit_it->is_boolean()) {
-        device_config["support_chamber_temp_edit"] = *chamber_edit_it;
-    } else if (chamber_edit_it != flags.end() && chamber_edit_it->is_object()) {
-        const auto min_it = chamber_edit_it->find("min");
-        const auto max_it = chamber_edit_it->find("max");
-        if (min_it != chamber_edit_it->end() && max_it != chamber_edit_it->end() && min_it->is_number() && max_it->is_number()) {
-            device_config["support_chamber_temp_edit"]       = true;
-            device_config["support_chamber_temp_edit_range"] = {*min_it, *max_it};
-        }
-    }
-
-    json fan_config;
-    copy_bool(fan_config, "support_aux_fan");
-    copy_bool(fan_config, "support_chamber_fan");
-
-    m_config->ParseConfig(device_config);
-    m_fan->ParseV2_0(fan_config);
-}
-
 static bool is_hex_digit(char c) {
     return std::isxdigit(static_cast<unsigned char>(c)) != 0;
 }
@@ -6073,15 +5965,6 @@ bool MachineObject::HasAms() const
     return m_fila_system->HasAms();
 }
 
-int MachineObject::command_with_dialog(int cmd_result)
-{
-    if (!m_agent)
-        return -1;
-    if (cmd_result == ORCA_NETWORK_ERR_CMD_NOT_SUPPORTED || cmd_result == ORCA_NETWORK_ERR_CAP_NOT_AVAILABLE)
-        show_unsupported_dlg(cmd_result);
-    return cmd_result;
-}
-
 void change_the_opacity(wxColour& colour)
 {
     if (colour.Alpha() == 255) {

src/slic3r/GUI/DeviceManager.hpp

@@ -18,7 +18,6 @@
 #include "boost/bimap/bimap.hpp"
 #include "libslic3r/calib.hpp"
 #include "libslic3r/Utils.hpp"
-#include "slic3r/Utils/PrinterNetworkTypes.hpp"
 
 #include "DeviceCore/DevDefs.h"
 #include "DeviceCore/DevConfigUtil.h"
@@ -101,6 +100,7 @@ struct DevPrintTaskRatingInfo;
 // given nozzle diameter (mm), bucketed per nozzle size to mirror the printer firmware.
 bool is_stringing_prone_filament(const std::string& filament_id, float nozzle_diameter);
 
+
 class MachineObject
 {
 private:
@@ -547,12 +547,30 @@ public:
     bool xcam_first_layer_inspector { false };
     time_t  xcam_first_layer_hold_start = 0;
     std::string local_rtsp_url;
-    std::string webcam_stream_url;
     std::string tutk_state;
-    LiveviewLocal liveview_local{ LiveviewLocal::LVL_None };
-    LiveviewRemote liveview_remote{ LiveviewRemote::LVR_None};
-    FileLocal file_local{ FileLocal::FL_None };
-    FileRemote file_remote{ FileRemote::FR_None };
+    enum LiveviewLocal {
+        LVL_None,
+        LVL_Disable,
+        LVL_Local,
+        LVL_Rtsps,
+        LVL_Rtsp
+    } liveview_local{ LVL_None };
+    enum LiveviewRemote {
+        LVR_None,
+        LVR_Tutk,
+        LVR_Agora,
+        LVR_TutkAgora
+    } liveview_remote{ LVR_None };
+    enum FileLocal {
+        FL_None,
+        FL_Local
+    } file_local{ FL_None };
+    enum FileRemote {
+        FR_None,
+        FR_Tutk,
+        FR_Agora,
+        FR_TutkAgora
+    } file_remote{ FR_None };
 
     enum PlateMakerDectect : int
     {
@@ -678,7 +696,7 @@ public:
 
 
     /* machine mqtt apis */
-    int connect();
+    int connect(bool use_openssl = true);
     int disconnect();
 
     json_diff print_json;
@@ -690,8 +708,6 @@ public:
     std::string  subtask_id_;
     std::string  job_id_;
     std::string  last_subtask_id_;
-    // note: printer-agent-supplied thumbnail url, empty when the agent supplies none.
-    std::string  m_agent_thumbnail_url;
     BBLSliceInfo* slice_info {nullptr};
     boost::thread* get_slice_info_thread { nullptr };
     boost::thread* get_model_task_thread { nullptr };
@@ -749,7 +765,6 @@ public:
     int command_set_printer_nozzle(std::string nozzle_type, float diameter);
     int command_set_printer_nozzle2(int id, std::string nozzle_type, float diameter);
     int command_get_access_code();
-    int command_start_camera();
     int command_ack_proceed(json& proceed);
     int command_purification_disable();
     int command_dont_remind_next_time(json& mqtt_guard_json);
@@ -796,7 +811,8 @@ public:
     int command_ams_calibrate(int ams_id);
     int command_ams_filament_settings(int ams_id, int slot_id, std::string filament_id, std::string setting_id, std::string tray_color, std::string tray_type, int nozzle_temp_min, int nozzle_temp_max);
     int command_ams_select_tray(std::string tray_id);
-    int command_ams_refresh_rfid(int ams_id, int slot_id);
+    int command_ams_refresh_rfid(std::string tray_id);
+    int command_ams_refresh_rfid2(int ams_id, int slot_id);
     int command_ams_control(std::string action);
     int command_ams_drying_stop();
     int command_start_extrusion_cali(int tray_index, int nozzle_temp, int bed_temp, float max_volumetric_speed, std::string setting_id = "");
@@ -878,7 +894,6 @@ public:
     static bool is_in_printing_status(std::string status);
 
     void set_print_state(std::string status);
-    void update_print_progress(const json& value);
 
     bool is_connected();
     bool is_connecting();
@@ -947,7 +962,6 @@ public:
     /*for parse new info*/
     bool check_enable_np(const json& print) const;
     void parse_new_info(json print);
-    void parse_new_info2(const json& info);
     int  get_flag_bits(std::string str, int start, int count = 1) const;
     uint32_t get_flag_bits_no_border(std::string str, int start_idx, int count = 1) const;
     int get_flag_bits(int num, int start, int count = 1, int base = 10) const;
@@ -976,7 +990,7 @@ public:
     void command_set_save_remote_print_file_to_storage(bool save);
 
 private:
-    int command_with_dialog(int cmd_result);
+
     /* xcam door open check*/
     bool is_support_door_open_check = false;
     DoorOpenCheckState xcam_door_open_check  = DoorOpenCheckState::DOOR_OPEN_CHECK_DISABLE;