Mateusz Malicki

Experimental feature: low quality sort and render

1

Im experimenting with low quality mode in cases when camera moves quickly to prevent rendering with stale sort order. Current implementation is available [here](https://adaptive-sort.netlify.app/). Its still very naive and kinda...

Im working on a PR with a little cleanup, and there are a few redundant gl calls. Particularly expensive is populating depthIndex. Is there any reason to do it twice...