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rig_retarget
============
Pure-Python rig retargeting library.
No Blender dependency. Targets TripoSG meshes auto-rigged by UniRig (SIGGRAPH 2025).
Quick start
-----------
from rig_retarget.io.bvh import load_bvh
from rig_retarget.io.gltf_io import load_gltf, write_gltf_animation
from rig_retarget.io.mapping import load_mapping
from rig_retarget.retarget import transfer_animation
settings, bone_items = load_mapping("my_map.json")
src_anim = load_bvh("motion.bvh")
dst_arm = load_gltf("unirig_char.glb")
keyframes = transfer_animation(src_anim, dst_arm, bone_items, settings)
write_gltf_animation("unirig_char.glb", dst_arm, keyframes, "output.glb")
CLI
---
python -m rig_retarget.cli --source motion.bvh --dest char.glb \\
--mapping map.json --output char_animated.glb
"""
from .skeleton import Armature, PoseBone
from .retarget import (
get_bone_position_ws,
get_bone_ws_quat,
set_bone_position_ws,
set_bone_rotation,
set_bone_position,
set_bone_position_pole,
set_bone_scale,
calc_rotation_offset,
calc_location_offset,
calc_all_corrections,
transfer_frame,
transfer_animation,
)
__all__ = [
"Armature", "PoseBone",
"get_bone_position_ws", "get_bone_ws_quat", "set_bone_position_ws",
"set_bone_rotation", "set_bone_position", "set_bone_position_pole",
"set_bone_scale", "calc_rotation_offset", "calc_location_offset",
"calc_all_corrections", "transfer_frame", "transfer_animation",
]
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