Yes and this is a great example of how open A-Frame is compared to OP example. You can inspect every part of the experience from the code to the actual runtime inspector to see how Akbartus achieved the effect -- and then help to make it even better! :)

I do think there is the possibility to use something like this eventually to do all the processing in the browser for Depth Anywhere + Splat reconstruction to fill in the holes of the current point cloud approach: https://github.com/ArthurBrussee/brush

As a consumer of A-Frame, I thank you!