Cloth: Add support for "Self Collision Vertex Group".

Self collision vertex groups enable artists to exclude selected vertices from getting involved in self collisions. This speeds simulations and it also resolves some self collision issues.

release/scripts/startup/bl_ui/properties_physics_cloth.py

@@ -145,6 +145,7 @@ class PHYSICS_PT_cloth_collision(PhysicButtonsPanel, Panel):
 
         cloth = context.cloth.collision_settings
         md = context.cloth
+        ob = context.object
 
         layout.active = cloth.use_collision and cloth_panel_enabled(md)
 
@@ -163,6 +164,7 @@ class PHYSICS_PT_cloth_collision(PhysicButtonsPanel, Panel):
         sub.active = cloth.use_self_collision
         sub.prop(cloth, "self_collision_quality", slider=True, text="Quality")
         sub.prop(cloth, "self_distance_min", slider=True, text="Distance")
+        sub.prop_search(cloth, "vertex_group_self_collisions", ob, "vertex_groups", text="")
 
         layout.prop(cloth, "group")