1 files changed, 35 insertions, 6 deletions
diff --git a/release/scripts/modules/rigify/delta.py b/release/scripts/modules/rigify/delta.py
index 00d79ed33df..261e2b22479 100644
--- a/release/scripts/modules/rigify/delta.py
+++ b/release/scripts/modules/rigify/delta.py
@@ -19,12 +19,40 @@
 # <pep8 compliant>
 
 import bpy
-from rigify import get_bone_data
+from rigify import RigifyError
 
 # not used, defined for completeness
 METARIG_NAMES = tuple()
 
 
+def metarig_template():
+    # generated by rigify.write_meta_rig
+    bpy.ops.object.mode_set(mode='EDIT')
+    obj = bpy.context.active_object
+    arm = obj.data
+    bone = arm.edit_bones.new('bonesker')
+    bone.head[:] = 0.0000, 0.0000, 0.0000
+    bone.tail[:] = -0.0000, 0.7382, 0.1895
+    bone.roll = -0.0000
+    bone.connected = False
+    bone = arm.edit_bones.new('delta')
+    bone.head[:] = -0.0497, 0.8414, 0.3530
+    bone.tail[:] = -0.2511, 1.1588, 0.9653
+    bone.roll = 2.6044
+    bone.connected = False
+    bone.parent = arm.edit_bones['bonesker']
+    bone = arm.edit_bones.new('boney')
+    bone.head[:] = 0.7940, 2.5592, 0.4134
+    bone.tail[:] = 0.7940, 3.3975, 0.4890
+    bone.roll = 3.1416
+    bone.connected = False
+    bone.parent = arm.edit_bones['delta']
+
+    bpy.ops.object.mode_set(mode='OBJECT')
+    pbone = obj.pose.bones['delta']
+    pbone['type'] = 'delta'
+
+
 def metarig_definition(obj, orig_bone_name):
     '''
     The bone given is the head, its parent is the body,
@@ -37,7 +65,10 @@ def metarig_definition(obj, orig_bone_name):
     children = delta.children
 
     if len(children) != 1:
-        print("only 1 child supported for delta")
+        raise RigifyError("only 1 child supported for delta on bone '%s'" % delta.name)
+
+    if delta.connected:
+        raise RigifyError("bone cannot be connected to its parent '%s'" % delta.name)
 
     bone_definition = [delta.name, children[0].name]
 
@@ -48,7 +79,6 @@ def main(obj, bone_definition, base_names):
     '''
     Use this bone to define a delta thats applied to its child in pose mode.
     '''
-
     mode_orig = obj.mode
     bpy.ops.object.mode_set(mode='OBJECT')
 
@@ -56,7 +86,8 @@ def main(obj, bone_definition, base_names):
 
     delta_pbone = obj.pose.bones[delta_name]
 
-    arm, child_pbone, child_bone = get_bone_data(obj, child_name)
+    arm = obj.data
+    child_pbone = obj.pose.bones[child_name]
 
     delta_phead = delta_pbone.head.copy()
     delta_ptail = delta_pbone.tail.copy()
@@ -77,7 +108,6 @@ def main(obj, bone_definition, base_names):
     delta_head = delta_ebone.head.copy()
     delta_tail = delta_ebone.tail.copy()
 
-    # arm, parent_pbone, parent_bone = get_bone_data(obj, delta_name)
     child_head = child_ebone.head.copy()
     child_tail = child_ebone.tail.copy()
 
@@ -125,7 +155,6 @@ def main(obj, bone_definition, base_names):
         mod.coefficients[1] = 0.0
 
 
-    # arm, parent_pbone, parent_bone = get_bone_data(obj, delta_name)
     bpy.ops.object.mode_set(mode='EDIT')
 
     bpy.ops.object.mode_set(mode=mode_orig)