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Enhance modify_scene_fn argument handling #231

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Enhance modify_scene_fn argument handling #231

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5 changes: 4 additions & 1 deletion mujoco_playground/_src/mjx_env.py
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Original file line number Diff line number Diff line change
Expand Up @@ -343,7 +343,10 @@ def get_image(state, modify_scn_fn=None) -> np.ndarray:
mujoco.mj_forward(mj_model, d)
renderer.update_scene(d, camera=camera, scene_option=scene_option)
if modify_scn_fn is not None:
modify_scn_fn(renderer.scene)
if modify_scene_fn.__code__.co_argcount == 1:
modify_scn_fn(renderer.scene)
elif modify_scene_fn.__code__.co_argcount == 2:
modify_scn_fn(renderer.scene, state)
return renderer.render()

if isinstance(trajectory, list):
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