[JTenerife]

Agreed that this is trivial model.

Regarding React: In many webgl use-cases UI-framework overhead can be neglected as the user interacts either with the scene or the UI rendered by the framework. The browser doesn't usually need to update the DOM and the scene in one frame.

[gridlockd]

I think the question here is how well React Hooks and their reconciliation perform "at scale". What may not be a problem with a couple of 2D UI elements may turn into a disaster in a non-trivial 3D scene.