diff options
| -rw-r--r-- | source/blender/modifiers/intern/MOD_weightvgedit.c | 11 | ||||
| -rw-r--r-- | source/blender/modifiers/intern/MOD_weightvgmix.c | 11 | ||||
| -rw-r--r-- | source/blender/modifiers/intern/MOD_weightvgproximity.c | 4 |
3 files changed, 26 insertions, 0 deletions
diff --git a/source/blender/modifiers/intern/MOD_weightvgedit.c b/source/blender/modifiers/intern/MOD_weightvgedit.c index bdd7ab7486b..e090ad78e59 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"); diff --git a/source/blender/modifiers/intern/MOD_weightvgmix.c b/source/blender/modifiers/intern/MOD_weightvgmix.c index 17316d891da..28f9f503966 100644 --- a/source/blender/modifiers/intern/MOD_weightvgmix.c +++ b/source/blender/modifiers/intern/MOD_weightvgmix.c @@ -251,6 +251,17 @@ static DerivedMesh *applyModifier(ModifierData *md, Object *ob, DerivedMesh *der } 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 not affecting all vertices, just return. */ + if(wmd->mix_set != MOD_WVG_SET_ALL) + return dm; + /* Else, add a valid data layer! */ + dvert = CustomData_add_layer_named(&dm->vertData, CD_MDEFORMVERT, CD_CALLOC, + NULL, numVerts, wmd->defgrp_name_a); + /* Ultimate security check. */ + if(!dvert) + return dm; /* Find out which vertices to work on. */ tidx = MEM_mallocN(sizeof(int) * numVerts, "WeightVGMix Modifier, tidx"); diff --git a/source/blender/modifiers/intern/MOD_weightvgproximity.c b/source/blender/modifiers/intern/MOD_weightvgproximity.c index 8e0949f2a22..55b625f7865 100644 --- a/source/blender/modifiers/intern/MOD_weightvgproximity.c +++ b/source/blender/modifiers/intern/MOD_weightvgproximity.c @@ -378,6 +378,10 @@ 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. + * As this modifier never add vertices to vgroup, just return. */ + if(!dvert) + return dm; /* Find out which vertices to work on (all vertices in vgroup), and get their relevant weight. */ |