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Alembic export: export UV maps on every frame

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Export UV maps to Alembic on every frame. This makes the export of UV
maps consistent with mesh normals. In the case of static UV maps it may
cause a slight slowdown (since they're exported on every frame now), but
due to the deduplication performed by the Alembic library, the resulting
files will be the same size anyway.

Thanks to @CodyWinch for providing the solution to the problem, and
writing the original patch D8397.

Differential Revision: https://developer.blender.org/D8397
This commit is contained in:
Sybren A. Stüvel
2021-05-06 12:19:24 +02:00
parent 47d76e0903
commit 3e77f747c0
1 changed files with 2 additions and 2 deletions
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4
source/blender/io/alembic/exporter/abc_writer_mesh.cc
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@@ -250,7 +250,7 @@ void ABCGenericMeshWriter::write_mesh(HierarchyContext &context, Mesh *mesh)
UVSample uvs_and_indices;
if (!frame_has_been_written_ && args_.export_params->uvs) {
if (args_.export_params->uvs) {
const char *name = get_uv_sample(uvs_and_indices, m_custom_data_config, &mesh->ldata);
if (!uvs_and_indices.indices.empty() && !uvs_and_indices.uvs.empty()) {
@@ -312,7 +312,7 @@ void ABCGenericMeshWriter::write_subd(HierarchyContext &context, struct Mesh *me
V3fArraySample(points), Int32ArraySample(poly_verts), Int32ArraySample(loop_counts));
UVSample sample;
if (!frame_has_been_written_ && args_.export_params->uvs) {
if (args_.export_params->uvs) {
const char *name = get_uv_sample(sample, m_custom_data_config, &mesh->ldata);
if (!sample.indices.empty() && !sample.uvs.empty()) {