The MDN doc links to an explainer:It's pretty small, but it's also not a very complex feature (implementation-wise). As explained there, the original motivation was to allow querying computed DOM properties at a time when it's guaranteed it won't force a relayout.Are there more resources about requestPostAnimationFrame? First I've heard of rPAF.-Won[cross-posted to webgl-dev-list]Dear WebGL community:Mozilla, with contributions from the rest of the WebGL working group, has just revised the WebGL Best Practices document. It contains a significant number of tips for best structuring WebGL applications and attaining top performance. Please check it out!On behalf of the WebGL working group,-Ken