fn gather_instances_recursive(
instances: &mut Vec<CpuMeshInstance>,
node: &Node<'_>,
transform: &Affine3A,
meshes: &HashMap<usize, CpuModelMeshKey>,
)fn gather_instances_recursive(
instances: &mut Vec<CpuMeshInstance>,
node: &Node<'_>,
transform: &Affine3A,
meshes: &HashMap<usize, CpuModelMeshKey>,
)