Strongly typed ref in BabylonNode<T>

[coder89]

Currently BabylonNode<T> declares ref as Ref<ReactNode>. Therefore we need to write something like this:

const ref = useRef();
useEffect(() => {
  const mesh = ref.current as Mesh;
}, []);
return <mesh ref={ref} />

generatedProps.d.ts should be updated to allow below:

const ref = useRef<Mesh>();
useEffect(() => {
  const mesh = ref.current;
}, []);
return <mesh ref={ref} />

I have created a PR that fixes the issue: #217

[brianzinn]

Thanks. I’ll merge in tonight. Appreciate the PR!