mujoco

<mujoco model="meshdir_rewrite_test">
  <compiler meshdir="assets"/>
  <asset>
    <mesh name="outside" file="../mesh.obj"/>
    <mesh name="outside_again" file="../mesh.obj"/>
    <mesh name="inside" file="mesh.obj"/>
  </asset>
  <worldbody>
    <geom type="mesh" mesh="outside"/>
    <geom type="mesh" mesh="outside_again"/>
    <geom type="mesh" mesh="inside"/>
  </worldbody>
</mujoco>