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Fix T76695: Not exporting normals properly in Alembic format 

When auto-smooth enabled, but no custom normals layer present, the Alembic
exporter would incorrectly assume the mesh was shaded smooth. This is now
corrected, and normals are always written when auto-smooth is enabled.
This commit is contained in:
Sybren A. Stüvel 2020-05-15 12:58:48 +02:00
parent 7049d2dc58
commit 0ae64a9945
Notes: blender-bot 2023-02-14 06:05:22 +01:00 
Referenced by issue #76695, Blender 2.82 not exporting normals properly in alembic format
1 changed files with 2 additions and 1 deletions
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source/blender/io/alembic/intern/abc_writer_mesh.cc
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@ -139,7 +139,8 @@ static void get_loop_normals(struct Mesh *mesh,
/* If all polygons are smooth shaded, and there are no custom normals, we don't need to export
* normals at all. This is also done by other software, see T71246. */
if (!has_flat_shaded_poly && !CustomData_has_layer(&mesh->ldata, CD_CUSTOMLOOPNORMAL)) {
if (!has_flat_shaded_poly && !CustomData_has_layer(&mesh->ldata, CD_CUSTOMLOOPNORMAL) &&
(mesh->flag & ME_AUTOSMOOTH) == 0) {
return;
}