forked from bartvdbraak/blender
Cycles: Fix crash when empty mesh has subdivision
OpenSubdiv doesn't like empty meshes, so we need to be careful not to subdivide when the mesh is empty.
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@ -299,7 +299,9 @@ void Mesh::tessellate(DiagSplit *split)
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bool need_packed_patch_table = false;
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if(subdivision_type == SUBDIVISION_CATMULL_CLARK) {
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osd_data.build_from_mesh(this);
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if(subd_faces.size()) {
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osd_data.build_from_mesh(this);
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}
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}
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else
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#endif
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@ -468,7 +470,7 @@ void Mesh::tessellate(DiagSplit *split)
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/* keep subdivision for corner attributes disabled for now */
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attr.flags &= ~ATTR_SUBDIVIDED;
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}
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else {
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else if(subd_faces.size()) {
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osd_data.subdivide_attribute(attr);
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need_packed_patch_table = true;
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