weight panel editing now supports mirroring

- use mirror when the option is enabled in editmode.
- fliped group names are used when they exist.
- only the setting that is edited will be applied to the mirrored verts group.
- copy value is applied to all mirrored verts of the selection.
- normalize normalizes all vgroups and mirrors.

utility functions defvert_sync and defvert_sync_mapped, similar to defvert_copy but does not remove existing groups and optionally creates groups as needed.
defvert_sync_mapped uses a an int array for mapping the flipped values.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/blenkernel/intern/modifier.c b/source/blender/blenkernel/intern/modifier.c
index e2ca0667b90..e0e9112d1de 100644
--- a/source/blender/blenkernel/intern/modifier.c
+++ b/source/blender/blenkernel/intern/modifier.c
@@ -1812,7 +1812,7 @@ static DerivedMesh *doMirrorOnAxis(MirrorModifierData *mmd,
 
 
 	if (do_vgroup_mirr) {
-		flip_map= defgroup_flip_map(ob);
+		flip_map= defgroup_flip_map(ob, 0);
 		if(flip_map == NULL)
 			do_vgroup_mirr= 0;
 	}