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Fix T66567: Weight painting crashes with specific mesh

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Seems the deform group index and deform vertices went out of sync somehow.

Added extra NULL pointer check, which seems to be safe and matches checks
in other places in the neighbourhood.
This commit is contained in:
Sergey Sharybin 2019-07-10 16:03:19 +02:00
parent a6ae53ef49
commit 53c8fd5447
1 changed files with 5 additions and 1 deletions
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6
source/blender/blenkernel/intern/armature.c
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@ -1370,7 +1370,11 @@ static void armature_vert_task(void *__restrict userdata,
if (use_dverts || armature_def_nr != -1) {
if (data->mesh) {
BLI_assert(i < data->mesh->totvert);
dvert = data->mesh->dvert + i;
if (data->mesh->dvert != NULL) {
dvert = data->mesh->dvert + i;
} else {
dvert = NULL;
}
}
else if (data->dverts && i < data->target_totvert) {
dvert = data->dverts + i;