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how can i delete biped bone keys with pymxs

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1374471911
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how can i delete biped bone keys with pymxs

def clear_bone_animation_data(bone, start_frame, end_frame๐Ÿ˜ž
    for frame in range(start_frame, end_frame+1๐Ÿ˜ž
        cotroller = rt.GetPropertyController(bone.controller, 'Position')
        rt.SelectKeys(cotroller, frame)
        rt.DeleteKeys(cotroller)
        #delete rotation keys
        cotroller = rt.GetPropertyController(bone.controller, 'Rotation')
        rt.SelectKeys(cotroller, frame)
        rt.DeleteKeys(cotroller)
 
for some bones, my script can work, but we i use it in biped bone,it not work
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inquestudios
in reply to: 1374471911

Biped uses its own animation controller system, so for biped bones you have to use 
biped.deleteKeys
https://help.autodesk.com/view/MAXDEV/2025/ENU/?guid=GUID-082B8EB1-B1A7-4D12-92D4-005A2CD899D6

and for tasks like this you actually don't need Python, use pure MAXscript

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