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Fix organic support being printed into object top surfaces (#15539)

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This commit is contained in:
Kiss Lorand
2026-09-05 17:48:35 +03:00
committed by GitHub
parent 134b9ad96e
commit 0224741105
1 changed files with 26 additions and 22 deletions
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48
src/libslic3r/Support/SupportCommon.cpp
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@@ -1654,28 +1654,32 @@ void generate_support_toolpaths(
if (top_contact_layer.could_merge(interface_layer) && ! raft_layer)
top_contact_layer.merge(std::move(interface_layer));
}
if (!bottom_interfaces && support_params.can_merge_support_regions) {
if (base_layer.could_merge(bottom_contact_layer))
base_layer.merge(std::move(bottom_contact_layer));
else if (base_layer.empty() && ! bottom_contact_layer.empty() && ! bottom_contact_layer.layer->bridging)
base_layer = std::move(bottom_contact_layer);
} else if (bottom_contact_layer.could_merge(top_contact_layer) && ! raft_layer) {
if (top_interfaces && bottom_interfaces) {
top_contact_layer.merge(std::move(bottom_contact_layer));
} else if (bottom_interfaces) {
top_contact_layer.set_polygons_to_extrude(
diff(top_contact_layer.polygons_to_extrude(), bottom_contact_layer.polygons_to_extrude()));
} else {
bottom_contact_layer.set_polygons_to_extrude(
diff(bottom_contact_layer.polygons_to_extrude(), top_contact_layer.polygons_to_extrude()));
}
} else if (bottom_contact_layer.could_merge(interface_layer) && ! organic_tree) {
const bool interface_layer_is_bottom = interface_layer.layer->layer_type == SupporLayerType::BottomInterface;
if (bottom_interfaces && interface_layer_is_bottom) {
bottom_contact_layer.merge(std::move(interface_layer));
} else {
bottom_contact_layer.set_polygons_to_extrude(
diff(bottom_contact_layer.polygons_to_extrude(), interface_layer.polygons_to_extrude()));
// Orca: Organic bottom contacts are projection seeds, not same-layer toolpaths.
// Do not merge them into another same-layer support region.
if (!organic_tree) {
if (!bottom_interfaces && support_params.can_merge_support_regions) {
if (base_layer.could_merge(bottom_contact_layer))
base_layer.merge(std::move(bottom_contact_layer));
else if (base_layer.empty() && ! bottom_contact_layer.empty() && ! bottom_contact_layer.layer->bridging)
base_layer = std::move(bottom_contact_layer);
} else if (bottom_contact_layer.could_merge(top_contact_layer) && ! raft_layer) {
if (top_interfaces && bottom_interfaces) {
top_contact_layer.merge(std::move(bottom_contact_layer));
} else if (bottom_interfaces) {
top_contact_layer.set_polygons_to_extrude(
diff(top_contact_layer.polygons_to_extrude(), bottom_contact_layer.polygons_to_extrude()));
} else {
bottom_contact_layer.set_polygons_to_extrude(
diff(bottom_contact_layer.polygons_to_extrude(), top_contact_layer.polygons_to_extrude()));
}
} else if (bottom_contact_layer.could_merge(interface_layer)) {
const bool interface_layer_is_bottom = interface_layer.layer->layer_type == SupporLayerType::BottomInterface;
if (bottom_interfaces && interface_layer_is_bottom) {
bottom_contact_layer.merge(std::move(interface_layer));
} else {
bottom_contact_layer.set_polygons_to_extrude(
diff(bottom_contact_layer.polygons_to_extrude(), interface_layer.polygons_to_extrude()));
}
}
}