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Fix T103212: ignore OBJ UV indices if no UVs are present 

Similar to T98782 that was about normal indices: some files out there
are technically "wrong" since they refer to UV indices, without ever
defining any UVs. If the file does not have any UVs, simply ignore UV
indices in the OBJ face definitions. Fixes T103212.
This commit is contained in:
Aras Pranckevicius 2023-01-01 19:14:37 +02:00
parent 614704f90c
commit 8007f7e74f
Notes: blender-bot 2023-02-14 10:43:47 +01:00 
Referenced by issue #103212, New Wavefront OBJ importer only imports points
1 changed files with 2 additions and 1 deletions
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source/blender/io/wavefront_obj/importer/obj_import_file_reader.cc
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@ -222,7 +222,8 @@ static void geom_add_polygon(Geometry *geom,
else {
geom->track_vertex_index(corner.vert_index);
}
if (got_uv) {
/* Ignore UV index, if the geometry does not have any UVs (T103212). */
if (got_uv && !global_vertices.uv_vertices.is_empty()) {
corner.uv_vert_index += corner.uv_vert_index < 0 ? global_vertices.uv_vertices.size() : -1;
if (corner.uv_vert_index < 0 || corner.uv_vert_index >= global_vertices.uv_vertices.size()) {
fprintf(stderr,