Added baking/unbaking functionality to constraint system. Retargeting now adds/manages 2 new NLA Tracks as planned. Modified bl_operatores/nla.py slightly to use it instead of creating my own bake function (now supports baking to a specific action, vs always creating a new one), but this does not break using the function in the old way.

release/scripts/startup/bl_operators/nla.py

@@ -83,7 +83,7 @@ def bake(frame_start,
          do_pose=True,
          do_object=True,
          do_constraint_clear=False,
-         ):
+         action=None):
 
     scene = bpy.context.scene
     obj = bpy.context.object
@@ -120,7 +120,8 @@ def bake(frame_start,
 
     # incase animation data hassnt been created
     atd = obj.animation_data_create()
-    action = bpy.data.actions.new("Action")
+    if action == None:
+        action = bpy.data.actions.new("Action")
     atd.action = action
 
     if do_pose:
@@ -253,37 +254,38 @@ class BakeAction(bpy.types.Operator):
     def invoke(self, context, event):
         wm = context.window_manager
         return wm.invoke_props_dialog(self)
-        
+
 #################################
 
+
 class ClearUselessActions(bpy.types.Operator):
     '''Mark actions with no F-Curves for deletion after save+reload of file preserving "action libraries"'''
     bl_idname = "anim.clear_useless_actions"
     bl_label = "Clear Useless Actions"
     bl_options = {'REGISTER', 'UNDO'}
-    
-    only_unused = BoolProperty(name="Only Unused", 
+
+    only_unused = BoolProperty(name="Only Unused",
             description="Only unused (Fake User only) actions get considered",
             default=True)
-    
+
     @classmethod
     def poll(cls, context):
         return len(bpy.data.actions) != 0
-        
+
     def execute(self, context):
         removed = 0
-        
+
         for action in bpy.data.actions:
             # if only user is "fake" user...
-            if ((self.only_unused is False) or 
+            if ((self.only_unused is False) or
                 (action.use_fake_user and action.users == 1)):
-                
-                # if it has F-Curves, then it's a "action library" (i.e. walk, wave, jump, etc.) 
+
+                # if it has F-Curves, then it's a "action library" (i.e. walk, wave, jump, etc.)
                 # and should be left alone as that's what fake users are for!
                 if not action.fcurves:
                     # mark action for deletion
                     action.user_clear()
                     removed += 1
-        
+
         self.report({'INFO'}, "Removed %d empty and/or fake-user only Actions" % (removed))
         return {'FINISHED'}