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feat(imex): plate ghost renderer + per-plate filament map

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Replaces the plater-icon popover with colored transparent ghost copies
of primary-head instances on the plate, one per secondary active head
under its Copy/Mirror role transform. Left-click on a ghost opens a
compact filament picker popover for the ghost's head (MMU lane override).
Ghosts track the primary through drag/rotate/scale/mirror and invalidate
on mode or pem changes.

Key pieces:
  IMEXHelpers -- imex_head_transform (Primary/Copy/Mirror), shared role
    parser, per-head filament resolution with X-axis Mirror anchor.
  PartPlate -- ghost state, volume rebuild on mode/map/object mutation,
    primary_origin plumbed for Mirror reflection across the primary-row
    gantry plane.
  GLCanvas3D -- ghost rendering with per-head filament color and
    translucent blending; picking routed via volume composite id.
  Plater -- ghost click + tooltip; plater icon left-click always cycles.
  IMEXFilamentPickerPopover -- BitmapComboBox row for one secondary head,
    writes imex_head_filament_map on selection.
  bbs_3mf -- round-trip the per-plate imex_head_filament_map option.
  PrintConfig -- add imex_head_filament_map as a plate option.

MMU/AFC routing for parallel modes relies on the printer profile's
physical_extruder_map (see prior commit for authoring format). Primary-
row heads and their per-plate filament overrides are resolved through
that map, so PA and temperature emission address the correct physical
extruder when multiple logical slots share one carriage.

Tests: IMEXHelpers coverage for Primary/Copy/Mirror transforms
including a 2x2 off-row regression guard for the X-axis reflection fix.
This commit is contained in:
Clifford Garwood
2026-04-21 14:56:22 -04:00
parent 0530d6c4da
commit 77c32a2e15
22 changed files with 1458 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/libslic3r/GCode.cpp
+40 -11
View File
@@ -4,6 +4,7 @@
#include "PrintConfig.hpp"
#include "libslic3r.h"
#include "I18N.hpp"
#include "IMEXHelpers.hpp"
#include "GCode.hpp"
#include "Exception.hpp"
#include "ExtrusionEntity.hpp"
@@ -2392,10 +2393,12 @@ static BambuBedType to_bambu_bed_type(BedType type)
}
// Orca IMEX: Returns the tool indices active in the current IMEX mode.
// In copy/mirror parallel modes, secondary carriages (T1-T3) never receive tool-change
// In copy/mirror parallel modes, secondary carriages never receive tool-change
// commands — the firmware mirrors the primary's moves — so they don't appear in
// tool_ordering.all_extruders(). This helper parses imex_mode_active_tools to enumerate them.
// Format: "0:P,1:C,2:M,3:M" — only the leading integer index is used.
// Indices are PHYSICAL T-indices. Callers that need a filament-slot (for PA / temp
// lookups) must resolve via first_filament_for_physical_head or resolve_filament_for_head.
static std::vector<int> get_imex_active_tools(const Print& print)
{
std::vector<int> active_tools;
@@ -3095,10 +3098,13 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
int imex_active_mode_index = 0;
std::string imex_active_mode_gcode;
m_imex_parallel_mode.clear();
m_imex_head_filament_map.clear();
if (print.config().is_imex.value && !print.objects().empty()) {
const std::string& raw = print.objects().front()->config().imex_parallel_mode.value;
imex_active_mode = raw.empty() ? "primary" : raw;
m_imex_parallel_mode = imex_active_mode;
m_imex_head_filament_map = parse_imex_head_filament_map(
print.objects().front()->config().imex_head_filament_map.value);
const auto& mode_names = print.config().imex_mode_names.values;
const auto& mode_gcodes = print.config().imex_mode_gcodes.values;
for (size_t i = 0; i < mode_names.size(); ++i) {
@@ -3227,13 +3233,22 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
// In primary mode, regular tool-change PA handles each tool as it becomes active.
// In parallel modes no tool changes occur, so every carriage must be addressed
// explicitly here before printing starts.
if (!m_imex_parallel_mode.empty() && m_imex_parallel_mode != "primary") {
if (!m_imex_parallel_mode.empty() && m_imex_parallel_mode != "primary"
&& !m_config.physical_extruder_map.values.empty()) {
// initial_physical: pem-translate the print's initial logical extruder so the
// loop can skip the primary head (which emitted PA via the normal path).
// Then pem-invert each active physical head back to its first routed filament
// for the PA setting lookup. Guarded on non-empty pem above.
const int initial_physical = m_config.physical_extruder_map.get_at((int)initial_extruder_id);
for (int tool_idx : get_imex_active_tools(print)) {
if (tool_idx == (int)initial_extruder_id) continue;
if (!print.config().enable_pressure_advance.get_at(tool_idx)) continue;
if (tool_idx == initial_physical) continue;
const int logical = resolve_filament_for_head(
m_imex_head_filament_map, m_config.physical_extruder_map, tool_idx);
if (logical < 0) continue;
if (!print.config().enable_pressure_advance.get_at(logical)) continue;
file.write(m_writer.set_pressure_advance(
print.config().pressure_advance.get_at(tool_idx),
m_config.physical_extruder_map.get_at(tool_idx)));
print.config().pressure_advance.get_at(logical),
tool_idx));
}
}
}
@@ -4692,13 +4707,23 @@ LayerResult GCode::process_layer(
// All active tools need explicit temps — none receive tool-change commands,
// so we can't rely on the condition used for non-IMEX (temp != initial_layer_temp).
// A tool whose initial and regular temps are the same still needs to be set here.
// Skip the primary head: its filament is governed by the object sidebar and
// the standard per-extruder temp path already addresses it (matching the PA
// emission site above). `tool_idx` is physical; resolve to a filament slot
// via pem inversion for temp lookup.
const int num_nozzles = (int)print.config().nozzle_temperature.values.size();
const int initial_physical = m_config.physical_extruder_map.values.empty()
? -1
: m_config.physical_extruder_map.get_at((int)first_extruder_id);
for (int tool_idx : get_imex_active_tools(print)) {
if (tool_idx >= num_nozzles) continue;
int temperature = print.config().nozzle_temperature.values[tool_idx];
if (tool_idx == initial_physical) continue;
const int logical = resolve_filament_for_head(
m_imex_head_filament_map, m_config.physical_extruder_map, tool_idx);
if (logical < 0 || logical >= num_nozzles) continue;
int temperature = print.config().nozzle_temperature.values[logical];
if (temperature > 0)
gcode += GCodeWriter::set_temperature(temperature, m_writer.config.gcode_flavor, false,
m_config.physical_extruder_map.get_at(tool_idx), "set IMEX tool temperature");
tool_idx, "set IMEX tool temperature");
}
} else {
for (const Extruder& extruder : m_writer.extruders()) {
@@ -7564,8 +7589,11 @@ std::string GCode::set_extruder(unsigned int new_filament_id, double print_z, bo
// In IMEX parallel modes each carriage needs an explicit tool address.
// In primary mode (single active tool) regular tool changes handle PA
// so no qualifier is needed — same as a non-IMEX printer.
// Guard the pem lookup: PrintApply populates pem when printer_extruder_id
// is set, but defense-in-depth prevents a throw from get_at on any
// empty-pem path that might slip through in exotic profiles.
const bool imex_parallel = !m_imex_parallel_mode.empty() && m_imex_parallel_mode != "primary";
const int pa_tool = imex_parallel
const int pa_tool = (imex_parallel && !m_config.physical_extruder_map.values.empty())
? m_config.physical_extruder_map.get_at((int)new_filament_id)
: -1;
gcode += m_writer.set_pressure_advance(m_config.pressure_advance.get_at(new_filament_id), pa_tool);
@@ -7867,8 +7895,9 @@ std::string GCode::set_extruder(unsigned int new_filament_id, double print_z, bo
gcode += m_ooze_prevention.post_toolchange(*this);
if (m_config.enable_pressure_advance.get_at(new_filament_id)) {
// Empty-pem guard mirrors the earlier PA site; get_at throws on empty values.
const bool imex_parallel = !m_imex_parallel_mode.empty() && m_imex_parallel_mode != "primary";
const int pa_tool = imex_parallel
const int pa_tool = (imex_parallel && !m_config.physical_extruder_map.values.empty())
? m_config.physical_extruder_map.get_at((int)new_filament_id)
: -1;
gcode += m_writer.set_pressure_advance(m_config.pressure_advance.get_at(new_filament_id), pa_tool);