== Constraints - Geometry Targets ==

It is now possible to use the geometry of Meshes and/or Lattices as the target of a constraint. All you need to do, is to create a new Vertex-Group and assign all the points that you wish to use as the target, then type that name into the VG: field for the relevant constraints.

One of the cases where this is beneficial is when you need to copy the location of a vertex. Now you don't need to make extra vertex-parents for that.

Additional Notes:
* The code takes the average of the locations of the nominated vertices, and puts that in world-space for constraint solving (and regular space-conversion stuff).
* Currently, rotation and scaling of points is not taken into account. The rotation/scaling used is from the object's matrix. Hopefully, this will only be a temporary problem (will be fixed soon)

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_deform.h b/source/blender/blenkernel/BKE_deform.h
index de0dddabfd3..67e2a8948d5 100644
--- a/source/blender/blenkernel/BKE_deform.h
+++ b/source/blender/blenkernel/BKE_deform.h
@@ -46,6 +46,7 @@ void copy_defgroups (struct ListBase *lb1, struct ListBase *lb2);
 struct bDeformGroup *copy_defgroup (struct bDeformGroup *ingroup);
 struct bDeformGroup *get_named_vertexgroup (Object *ob, char *name);
 int get_defgroup_num (struct Object *ob, struct bDeformGroup *dg);
+int get_named_vertexgroup_num (Object *ob, char *name);
 void unique_vertexgroup_name (struct bDeformGroup *dg, struct Object *ob);
 
 #endif