diff options
Diffstat (limited to 'source/blender/modifiers/intern/MOD_weightvgedit.c')
-rw-r--r-- | source/blender/modifiers/intern/MOD_weightvgedit.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/source/blender/modifiers/intern/MOD_weightvgedit.c b/source/blender/modifiers/intern/MOD_weightvgedit.c index 473692f123d..e3eec5243fb 100644 --- a/source/blender/modifiers/intern/MOD_weightvgedit.c +++ b/source/blender/modifiers/intern/MOD_weightvgedit.c @@ -204,6 +204,17 @@ static DerivedMesh *applyModifier(ModifierData *md, Object *ob, DerivedMesh *der return dm; dvert = CustomData_duplicate_referenced_layer(&dm->vertData, CD_MDEFORMVERT, numVerts); + /* If no vertices were ever added to an object's vgroup, dvert might be NULL. */ + if(!dvert) + /* If this modifier is not allowed to add vertices, just return. */ + if(!do_add) + return dm; + /* Else, add a valid data layer! */ + dvert = CustomData_add_layer_named(&dm->vertData, CD_MDEFORMVERT, CD_CALLOC, + NULL, numVerts, wmd->defgrp_name); + /* Ultimate security check. */ + if(!dvert) + return dm; /* Get org weights, assuming 0.0 for vertices not in given vgroup. */ org_w = MEM_mallocN(sizeof(float) * numVerts, "WeightVGEdit Modifier, org_w"); |