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Add option to keep existing painting while mapping new paintings to it

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This commit is contained in:
Noisyfox
2026-05-09 21:47:40 +08:00
parent b3a513eab9
commit e6b3f6ccef
4 changed files with 18 additions and 7 deletions
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7
src/libslic3r/TriangleSelector.cpp
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@@ -2407,7 +2407,8 @@ TriangleSelector::TriangleSplittingData TriangleSelector::remap_painting(
const indexed_triangle_set& source_its,
const TriangleSplittingData& source_painting,
const indexed_triangle_set& target_its,
const Transform3d& target_transform)
const Transform3d& target_transform,
const std::optional<std::reference_wrapper<const TriangleSplittingData>>& existing_painting)
{
TriangleSelector::TriangleSplittingData result;
if (source_painting.bitstream.empty())
@@ -2477,6 +2478,10 @@ TriangleSelector::TriangleSplittingData TriangleSelector::remap_painting(
// 4. For each painted face, we find the nearest target face, and apply the TriangleCursor to paint it
TriangleSelector target_selector(target_mesh);
if (existing_painting) {
// Restore existing painting first, if given
target_selector.deserialize(existing_painting->get(), false);
}
for (auto tri_ref : painted_triangles) {
const Triangle& tri = tri_ref.get();
const Vec3f& pv0 = source_selector.m_vertices[tri.verts_idxs[0]].v;