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Fix T76132: Can't export Alembic with changing UVs 

In the Alembic exporter, UVs were only exported on the first frame. This
is an issue, as when exporting an animated mesh the topology can change,
and then the UV coordinates of the first frame are no longer valid.

T76132 concerns both exporting and importing changing UVs. This fixes
the exporting.
This commit is contained in:
Sybren A. Stüvel 2020-05-12 14:48:18 +02:00
parent e5bb02aaa4
commit 65574463fa
Notes: blender-bot 2023-02-14 08:38:11 +01:00 
Referenced by commit a1c9d42584, Fix T77021: Alembic export of animated mesh with multiple UV maps fails
Referenced by issue #77021, Export animated mesh to alembic fail when there are multiple UV maps
Referenced by issue #76132, Can't import or export Alembic with changing UVs
1 changed files with 1 additions and 1 deletions
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source/blender/io/alembic/intern/abc_writer_mesh.cc
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@ -335,7 +335,7 @@ void AbcGenericMeshWriter::writeMesh(struct Mesh *mesh)
V3fArraySample(points), Int32ArraySample(poly_verts), Int32ArraySample(loop_counts));
UVSample sample;
if (m_first_frame && m_settings.export_uvs) {
if (m_settings.export_uvs) {
const char *name = get_uv_sample(sample, m_custom_data_config, &mesh->ldata);
if (!sample.indices.empty() && !sample.uvs.empty()) {