rigify

* optional default blend argument, use for better leg & arm defaults
* way to define arbitrary options for bones that can then be passed to the generator function, only used to set elbow target parent at the moment.

release/scripts/modules/rigify/palm_curl.py

@@ -96,7 +96,7 @@ def metarig_definition(obj, orig_bone_name):
     return [palm_parent.name] + bone_definition
 
 
-def main(obj, bone_definition, base_names):
+def main(obj, bone_definition, base_names, options):
     arm = obj.data
 
     children = bone_definition[1:]
@@ -163,22 +163,6 @@ def main(obj, bone_definition, base_names):
     driver = driver_fcurves[2].driver
     driver.expression = "(1.0-cos(x))-s"
 
-    def x_direction():
-        # NOTE: the direction of the Z rotation depends on which side the palm is on.
-        # we could do a simple side-of-x test but better to work out the direction
-        # the hand is facing.
-        from Mathutils import Vector, AngleBetweenVecs
-        from math import degrees
-        child_pbone_01 = obj.pose.bones[children[0]]
-        child_pbone_02 = obj.pose.bones[children[1]]
-
-        rel_vec = child_pbone_01.head - child_pbone_02.head
-        x_vec = child_pbone_01.matrix.rotationPart() * Vector(1.0, 0.0, 0.0)
-        return degrees(AngleBetweenVecs(rel_vec, x_vec)) > 90.0
-
-    if x_direction(): # flip
-        driver.expression = "-(%s)" % driver.expression
-    
     for fcurve in driver_fcurves:
         fcurve.modifiers.remove(0) # grr dont need a modifier
 
@@ -229,5 +213,23 @@ def main(obj, bone_definition, base_names):
     child_pbone = obj.pose.bones[children[-1]]
     child_pbone.rotation_mode = 'QUATERNION'
 
+    # fix at the end since there is some trouble with tx info not being updated otherwise
+    def x_direction():
+        # NOTE: the direction of the Z rotation depends on which side the palm is on.
+        # we could do a simple side-of-x test but better to work out the direction
+        # the hand is facing.
+        from Mathutils import Vector, AngleBetweenVecs
+        from math import degrees
+        child_pbone_01 = obj.pose.bones[children[0]].bone
+        child_pbone_02 = obj.pose.bones[children[1]].bone
+
+        rel_vec = child_pbone_01.head - child_pbone_02.head
+        x_vec = child_pbone_01.matrix.rotationPart() * Vector(1.0, 0.0, 0.0)
+        print(rel_vec, x_vec)
+        return degrees(AngleBetweenVecs(rel_vec, x_vec)) > 90.0
+
+    if x_direction(): # flip
+        driver.expression = "-(%s)" % driver.expression
+
     # no blending the result of this
     return None