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Fix T49220: Vertex paint doesn't work with OpenSubdiv 

It's a bit tricky to align vertex color data between Blender and OpenSubdiv
so for now we simply disable OpenSubdiv in the paint modes.

Safe for 2.78.
This commit is contained in:
Sergey Sharybin 2016-09-02 15:15:42 +02:00
parent 83ae39cc2e
commit 062732905a
Notes: blender-bot 2023-02-14 07:38:36 +01:00 
Referenced by issue #49220, Vertex Paint... not painting in the ViewPort
1 changed files with 3 additions and 0 deletions
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3
source/blender/modifiers/intern/MOD_subsurf.c
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@ -130,6 +130,9 @@ static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
if (U.opensubdiv_compute_type == USER_OPENSUBDIV_COMPUTE_NONE) {
modifier_setError(md, "OpenSubdiv is disabled in User Preferences");
}
else if ((ob->mode & (OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT | OB_MODE_TEXTURE_PAINT)) != 0) {
modifier_setError(md, "OpenSubdiv is not supported in paint modes");
}
else if ((DAG_get_eval_flags_for_object(md->scene, ob) & DAG_EVAL_NEED_CPU) == 0) {
subsurf_flags |= SUBSURF_USE_GPU_BACKEND;
do_cddm_convert = false;