message: explicit cast u32 ordered instance idx
diff: @@ -231,7 +231,7 @@ impl InstanceArray {
  if self.ordered {
  let mut layers = BTreeMap::<_, Vec<_>>::new();
  for (i, param) in self.params.iter().enumerate() {
  - layers.entry(param.z).or_default().push(i);
  + layers.entry(param.z).or_default().push(i as u32);
  }
  let indices = layers.into_values().flatten().collect::<Vec<_>>();
  wgpu.queue.write_buffer(
  