forked from bartvdbraak/blender
- finished spine rig generator, (drivers, constraints)
- bug with args passed for class slots being modified in place. - sort graphviz bones & drivers (useful for diffing 2 armatures)
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fd69360fd2
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50c8c28c60
@ -26,7 +26,7 @@ footer = '''
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}
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'''
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def compat_str(text, line_length=22):
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def compat_str(text, line_length=0):
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if line_length:
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text_ls = []
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@ -88,7 +88,9 @@ def graph_armature(obj, path, FAKE_PARENT=True, CONSTRAINTS=True, DRIVERS=True):
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if FAKE_PARENT:
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fw('"Object::%s" [];\n' % obj.name)
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for bone in arm.bones:
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for bone in bones:
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bone = arm.bones[bone]
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parent = bone.parent
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if parent:
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parent_name = parent.name
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@ -131,7 +133,11 @@ def graph_armature(obj, path, FAKE_PARENT=True, CONSTRAINTS=True, DRIVERS=True):
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animation_data = obj.animation_data
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if animation_data:
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for fcurve_driver in animation_data.drivers:
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fcurve_drivers = [fcurve_driver for fcurve_driver in animation_data.drivers]
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fcurve_drivers.sort(key=lambda fcurve_driver: fcurve_driver.rna_path)
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for fcurve_driver in fcurve_drivers:
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rna_path = fcurve_driver.rna_path
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pbone = rna_path_as_pbone(rna_path)
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@ -158,5 +164,5 @@ if __name__ == "__main__":
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import bpy
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import os
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path ="/tmp/test.dot"
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graph_armature(bpy.context.object, path, CONSTRAINTS=False, DRIVERS=False)
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graph_armature(bpy.context.object, path, CONSTRAINTS=True, DRIVERS=True)
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os.system("dot -Tpng %s > %s; eog %s &" % (path, path + '.png', path + '.png'))
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@ -31,7 +31,9 @@ def auto_class_instance(slots, name="ContainerClass"):
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return auto_class(slots, name)()
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def bone_class_instance(obj, slots, name="BoneContainer"):
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for member in slots[:]:
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slots = slots[:] # dont modify the original
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for i in range(len(slots)):
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member = slots[i]
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slots.append(member + "_b") # bone bone
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slots.append(member + "_p") # pose bone
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slots.append(member + "_e") # edit bone
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@ -114,6 +114,7 @@ def main(obj, orig_bone_name):
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# - copy (*use original name*)
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# - reverse (MCH-rev_*)
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spine_chain_attrs = [("spine_%.2d" % (i + 1)) for i in range(len(spine_chain_orig))]
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mt_chain = bone_class_instance(obj, spine_chain_attrs) # ORG_*
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rv_chain = bone_class_instance(obj, spine_chain_attrs) # *
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ex_chain = bone_class_instance(obj, spine_chain_attrs) # MCH-rev_*
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@ -152,7 +153,7 @@ def main(obj, orig_bone_name):
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# ex_chain needs to interlace bones!
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# Note, skip the first bone
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for i in range(1, len(spine_chain_orig)): # similar to neck
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for i in range(1, len(spine_chain_attrs)): # similar to neck
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child_name_orig = spine_chain_orig[i]
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spine_e = getattr(mt_chain, spine_chain_attrs[i] + "_e")
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@ -174,14 +175,218 @@ def main(obj, orig_bone_name):
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# Rotate the rev chain 180 about the by the first bones center point
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pivot = (rv_chain.spine_01_e.head + rv_chain.spine_01_e.tail) * 0.5
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matrix = RotationMatrix(radians(180), 3, 'X')
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for i in range(len(spine_chain_orig)): # similar to neck
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for i in range(len(spine_chain_attrs)): # similar to neck
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spine_e = getattr(rv_chain, spine_chain_attrs[i] + "_e")
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# use the first bone as the pivot
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spine_e.head = ((spine_e.head - pivot) * matrix) + pivot
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spine_e.tail = ((spine_e.tail - pivot) * matrix) + pivot
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spine_e.roll += pi # 180d roll
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del spine_e
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bpy.ops.object.mode_set(mode='OBJECT')
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# refresh pose bones
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mt.update()
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ex.update()
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df.update()
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mt_chain.update()
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ex_chain.update()
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rv_chain.update()
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# df.pelvis_p / DEF-wgt_pelvis
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con = df.pelvis_p.constraints.new('COPY_LOCATION')
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con.target = obj
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con.subtarget = ex.pelvis
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con.owner_space = 'LOCAL'
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con.target_space = 'LOCAL'
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con = df.pelvis_p.constraints.new('COPY_ROTATION')
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con.target = obj
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con.subtarget = ex.pelvis
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con.owner_space = 'LOCAL'
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con.target_space = 'LOCAL'
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# df.ribcage_p / DEF-wgt_rib_cage
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con = df.ribcage_p.constraints.new('COPY_ROTATION')
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con.target = obj
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con.subtarget = ex.ribcage
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con.owner_space = 'LOCAL'
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con.target_space = 'LOCAL'
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con = df.ribcage_p.constraints.new('COPY_LOCATION')
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con.target = obj
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con.subtarget = ex.ribcage
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con.owner_space = 'LOCAL'
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con.target_space = 'LOCAL'
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con = ex.ribcage_hinge_p.constraints.new('COPY_ROTATION')
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con.name = "hinge"
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con.target = obj
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con.subtarget = mt.pelvis
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# add driver
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hinge_driver_path = mt.ribcage_p.path_to_id() + '["hinge"]'
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fcurve = con.driver_add("influence", 0)
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driver = fcurve.driver
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tar = driver.targets.new()
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driver.type = 'AVERAGE'
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tar.name = "var"
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tar.id_type = 'OBJECT'
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tar.id = obj
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tar.rna_path = hinge_driver_path
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mod = fcurve.modifiers[0]
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mod.poly_order = 1
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mod.coefficients[0] = 1.0
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mod.coefficients[1] = -1.0
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con = ex.spine_rotate_p.constraints.new('COPY_ROTATION')
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con.target = obj
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con.subtarget = mt.ribcage
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# ex.pelvis_p / MCH-wgt_pelvis
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con = ex.pelvis_p.constraints.new('COPY_LOCATION')
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con.target = obj
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con.subtarget = mt_chain.spine_01
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con = ex.pelvis_p.constraints.new('COPY_ROTATION')
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con.target = obj
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con.subtarget = mt_chain.spine_01
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# ex.ribcage_p / MCH-wgt_rib_cage
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con = ex.ribcage_p.constraints.new('COPY_LOCATION')
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con.target = obj
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con.subtarget = getattr(mt_chain, spine_chain_attrs[-1])
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con.head_tail = 0.0
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con = ex.ribcage_p.constraints.new('COPY_ROTATION')
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con.target = obj
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con.subtarget = getattr(mt_chain, spine_chain_attrs[-1])
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# mt.pelvis_p / rib_cage
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con = mt.ribcage_p.constraints.new('COPY_LOCATION')
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con.target = obj
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con.subtarget = mt.pelvis
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con.head_tail = 0.0
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# This stores all important ID props
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prop = rna_idprop_ui_prop_get(mt.ribcage_p, "hinge", create=True)
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mt.ribcage_p["hinge"] = 1.0
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prop["soft_min"] = 0.0
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prop["soft_max"] = 1.0
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prop = rna_idprop_ui_prop_get(mt.ribcage_p, "pivot_slide", create=True)
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mt.ribcage_p["pivot_slide"] = 0.5
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prop["soft_min"] = 1.0 / len(spine_chain_attrs)
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prop["soft_max"] = 1.0
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for i in range(len(spine_chain_attrs) - 1):
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prop_name = "bend_%.2d" % (i + 1)
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prop = rna_idprop_ui_prop_get(mt.ribcage_p, prop_name, create=True)
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mt.ribcage_p[prop_name] = 1.0
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prop["soft_min"] = 0.0
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prop["soft_max"] = 1.0
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# Create a fake connected parent/child relationship with bone location constraints
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# positioned at the tip.
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# reverse bones / MCH-rev_spine.##
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for i in range(1, len(spine_chain_attrs)):
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spine_p = getattr(rv_chain, spine_chain_attrs[i] + "_p")
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spine_fake_parent_name = getattr(rv_chain, spine_chain_attrs[i - 1])
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con = spine_p.constraints.new('COPY_LOCATION')
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con.target = obj
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con.subtarget = spine_fake_parent_name
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con.head_tail = 1.0
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del spine_p, spine_fake_parent_name, con
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# Constrain 'inbetween' bones
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# b01/max(0.001,b01+b02+b03+b04+b05)
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target_names = [("b%.2d" % (i + 1)) for i in range(len(spine_chain_attrs) - 1)]
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expression_suffix = "/max(0.001,%s)" % "+".join(target_names)
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rib_driver_path = mt.ribcage_p.path_to_id()
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for i in range(1, len(spine_chain_attrs)):
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spine_p = getattr(ex_chain, spine_chain_attrs[i] + "_p")
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spine_p_parent = spine_p.parent # interlaced bone
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con = spine_p_parent.constraints.new('COPY_ROTATION')
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con.target = obj
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con.subtarget = ex.spine_rotate
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con.owner_space = 'LOCAL'
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con.target_space = 'LOCAL'
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del spine_p
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# add driver
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fcurve = con.driver_add("influence", 0)
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driver = fcurve.driver
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driver.type = 'SCRIPTED'
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# b01/max(0.001,b01+b02+b03+b04+b05)
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driver.expression = target_names[i - 1] + expression_suffix
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fcurve.modifiers.remove(0) # grr dont need a modifier
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for j in range(len(spine_chain_attrs) - 1):
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tar = driver.targets.new()
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tar.name = target_names[j]
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tar.id_type = 'OBJECT'
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tar.id = obj
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tar.rna_path = rib_driver_path + ('["bend_%.2d"]' % (j + 1))
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# original bone drivers
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# note: the first bone has a lot more constraints, but also this simple one is first.
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for i in range(len(spine_chain_attrs)):
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spine_p = getattr(mt_chain, spine_chain_attrs[i] + "_p")
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con = spine_p.constraints.new('COPY_ROTATION')
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con.target = obj
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con.subtarget = getattr(ex_chain, spine_chain_attrs[i]) # lock to the copy's rotation
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del spine_p
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# pivot slide: - lots of copy location constraints.
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con = mt_chain.spine_01_p.constraints.new('COPY_LOCATION')
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con.name = "base"
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con.target = obj
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con.subtarget = rv_chain.spine_01 # lock to the reverse location
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for i in range(1, len(spine_chain_attrs) + 1):
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con = mt_chain.spine_01_p.constraints.new('COPY_LOCATION')
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con.name = "slide_%d" % i
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con.target = obj
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if i == len(spine_chain_attrs):
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attr = spine_chain_attrs[i - 1]
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else:
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attr = spine_chain_attrs[i]
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con.subtarget = getattr(rv_chain, attr) # lock to the reverse location
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if i == len(spine_chain_attrs):
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con.head_tail = 1.0
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fcurve = con.driver_add("influence", 0)
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driver = fcurve.driver
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tar = driver.targets.new()
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driver.type = 'AVERAGE'
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tar.name = "var"
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tar.id_type = 'OBJECT'
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tar.id = obj
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tar.rna_path = rib_driver_path + '["pivot_slide"]'
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mod = fcurve.modifiers[0]
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mod.poly_order = 1
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mod.coefficients[0] = - (i - 1)
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mod.coefficients[1] = len(spine_chain_attrs)
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# done with editmode
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# TODO, posemode
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