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Fix ImporterMesh bone weight handling during lightmap unwrap 

(cherry picked from commit 145503765a)
This commit is contained in:
bitsawer 2023-09-18 11:21:29 +03:00 committed by Yuri Sizov
parent 4f04d3191e
commit 08bc3570ae
1 changed files with 10 additions and 1 deletions
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11
scene/resources/importer_mesh.cpp
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@ -1237,6 +1237,7 @@ Error ImporterMesh::lightmap_unwrap_cached(const Transform3D &p_base_transform,
for (int i = 0; i < lightmap_surfaces.size(); i++) {
Ref<SurfaceTool> st;
st.instantiate();
st->set_skin_weight_count((lightmap_surfaces[i].format & Mesh::ARRAY_FLAG_USE_8_BONE_WEIGHTS) ? SurfaceTool::SKIN_8_WEIGHTS : SurfaceTool::SKIN_4_WEIGHTS);
st->begin(Mesh::PRIMITIVE_TRIANGLES);
st->set_material(lightmap_surfaces[i].material);
st->set_meta("name", lightmap_surfaces[i].name);
@ -1304,7 +1305,15 @@ Error ImporterMesh::lightmap_unwrap_cached(const Transform3D &p_base_transform,
Ref<SurfaceTool> &tool = surfaces_tools[i];
tool->index();
Array arrays = tool->commit_to_arrays();
add_surface(tool->get_primitive_type(), arrays, Array(), Dictionary(), tool->get_material(), tool->get_meta("name"), lightmap_surfaces[i].format);
uint64_t format = lightmap_surfaces[i].format;
if (tool->get_skin_weight_count() == SurfaceTool::SKIN_8_WEIGHTS) {
format |= RS::ARRAY_FLAG_USE_8_BONE_WEIGHTS;
} else {
format &= ~RS::ARRAY_FLAG_USE_8_BONE_WEIGHTS;
}
add_surface(tool->get_primitive_type(), arrays, Array(), Dictionary(), tool->get_material(), tool->get_meta("name"), format);
}
set_lightmap_size_hint(Size2(size_x, size_y));