RFC: Improving ClipSpace performance

[mattes3]

Background

luma's ClipSpace currently works with 2 triangles that form a square. Other frameworks (e.g. gl-react) use one big triangle, instead. There even is an npm component called a-big-triangle that shows this idea. It points to a blog post that claims that one triangle is about 8% faster than 2 triangles and leads better results.

I'm NOT an expert who could judge this difference or who could change the code correctly, therefore, a question to y'all:

• Do you find it worthwhile to replace the 2 triangles by 1? Maybe it would make luma.gl faster.

To Do List

• Add label and assign to milestone
• Coding
• Doc update
• Whats new update
• Test

[tsherif]

This is quite interesting! Thank you for the references. It should be easy to run benchmarks on a few different hardware setups to see if it's worth making the change.

[ibgreen]

Yes, could be worth a look. I seem to remember considering using a single larger triangle, but opted for using two perfectly fitted triangles instead. No strong reasons I believe, I was mainly focused on getting things functionally correct, didn't do any benchmarks.