fix for problem with creating weight-paint preview.

In the case where the modifier stack didnt need deform-verts to calculate,
they would not be available for the preview either.

This fixes a bug caused by r57206 which set mirror to preview so the mirrored
weights would be displayed, but it only worked when there was an armature after it, see [#35545].

1 files changed, 3 insertions, 2 deletions

diff --git a/source/blender/blenkernel/BKE_modifier.h b/source/blender/blenkernel/BKE_modifier.h
index e466964c73f..6b9392a4169 100644
--- a/source/blender/blenkernel/BKE_modifier.h
+++ b/source/blender/blenkernel/BKE_modifier.h
@@ -371,11 +371,12 @@ typedef struct CDMaskLink {
  * evaluation, assuming the data indicated by dataMask is required at the
  * end of the stack.
  */
-struct CDMaskLink *modifiers_calcDataMasks(struct Scene *scene, 
+struct CDMaskLink *modifiers_calcDataMasks(struct Scene *scene,
                                            struct Object *ob,
                                            struct ModifierData *md,
                                            CustomDataMask dataMask,
-                                           int required_mode);
+                                           int required_mode,
+                                           ModifierData *previewmd, CustomDataMask previewmask);
 struct ModifierData *modifiers_getLastPreview(struct Scene *scene,
                                               struct ModifierData *md,
                                               int required_mode);