Rigify: significant upgrade to arm and leg rigs, and misc changes/bugfixes.

Arm/leg rig upgrades:
  - Arms and legs no longer scale with their parents, which was
    problematic when e.g. the torso of a character did
    squash-and-stretch causing the arms/legs to distort and shear.
  - Squash-and-stretch for both FK and IK rigs.
  - Rubber hose controls.

Misc changes/bugfixes:
  - Rigify now locks all pose transforms for non-control bones
    automatically.
  - The README file now correctly reflects the new rig-type API.
  - Scrubbed the code for unused variables and imports.
  - PEP8 cleanups.

1 files changed, 10 insertions, 1 deletions

diff --git a/rigify/generate.py b/rigify/generate.py
index 69c8863b..5e9feafc 100644
--- a/rigify/generate.py
+++ b/rigify/generate.py
@@ -265,7 +265,6 @@ def generate_rig(context, metarig):
     try:
         # Collect/initialize all the rigs.
         rigs = []
-        deformation_rigs = []
         for bone in bones_sorted:
             bpy.ops.object.mode_set(mode='EDIT')
             rigs += get_bone_rigs(obj, bone)
@@ -307,6 +306,16 @@ def generate_rig(context, metarig):
             obj.data.edit_bones[bone].parent = obj.data.edit_bones[root_bone]
     bpy.ops.object.mode_set(mode='OBJECT')
 
+    # Lock transforms on all non-control bones
+    r = re.compile("[A-Z][A-Z][A-Z]-")
+    for bone in bones:
+        if r.match(bone):
+            pb = obj.pose.bones[bone]
+            pb.lock_location = (True, True, True)
+            pb.lock_rotation = (True, True, True)
+            pb.lock_rotation_w = True
+            pb.lock_scale = (True, True, True)
+
     # Every bone that has a name starting with "DEF-" make deforming.  All the
     # others make non-deforming.
     for bone in bones: