- added editbone.matrix, readonly, utility property that calculates the matrix from the bone roll

- spine fixes
- arm now uses the average Z axis to place the poll target

release/scripts/modules/rigify/spine.py

@@ -178,16 +178,16 @@ def main(obj, bone_definition, base_names):
     df.ribcage_e = copy_bone_simple(arm, child.name, "DEF-wgt_%s" % base_names[mt.ribcage])
     df.ribcage = df.ribcage_e.name
     df.ribcage_e.translate(Vector(spine_chain_segment_length * 2.0, - df.ribcage_e.length / 2.0, 0.0))
+    
+    ex.ribcage_copy_e = copy_bone_simple(arm, mt.ribcage, base_names[mt.ribcage])
+    ex.ribcage_copy = ex.ribcage_copy_e.name
+    ex.ribcage_copy_e.connected = False
+    ex.ribcage_copy_e.parent = ex.ribcage_hinge_e
 
     ex.ribcage_e = copy_bone_simple(arm, child.name, "MCH-wgt_%s" % base_names[mt.ribcage])
     ex.ribcage = ex.ribcage_e.name
     ex.ribcage_e.translate(Vector(0.0, - ex.ribcage_e.length / 2.0, 0.0))
-    ex.ribcage_e.parent = mt.ribcage_e
-
-    ex.ribcage_copy_e = copy_bone_simple(arm, child.name, base_names[mt.ribcage])
-    ex.ribcage_copy = ex.ribcage_copy_e.name
-    ex.ribcage_copy_e.connected = False
-    ex.ribcage_copy_e.parent = ex.ribcage_hinge_e
+    ex.ribcage_e.parent = ex.ribcage_copy_e
 
     spine_chain = [child.name for child in spine_chain]
 
@@ -294,6 +294,8 @@ def main(obj, bone_definition, base_names):
     con.target_space = 'LOCAL'
 
     # df.ribcage_p / DEF-wgt_rib_cage
+    df.ribcage_p.lock_location = True, True, True
+    
     con = df.ribcage_p.constraints.new('COPY_ROTATION')
     con.target = obj
     con.subtarget = ex.ribcage
@@ -329,7 +331,7 @@ def main(obj, bone_definition, base_names):
 
     con = ex.spine_rotate_p.constraints.new('COPY_ROTATION')
     con.target = obj
-    con.subtarget = mt.ribcage
+    con.subtarget = ex.ribcage_copy
 
 
     # ex.pelvis_p / MCH-wgt_pelvis