Comment by Animats

> Tackling 1: No current LLM will be able to do that.

Github Copilot seems to be able to do it. Mostly because it knows how to call Meshlab. The documentation for Meshlab is hard to search, and having an LLM find the correct function is itself helpful.

Also, it looks like quadric decimation has improved since the last time I looked at it. That algorithm, if pushed too hard, will generate meshes with holes. Now there are options ("preservetopology") which supposedly prevent that. I last looked at that a few years ago, and the only mesh decimator which handled that correctly was the one inside Unreal Engine Editor.

Now I have to test all this stuff, of course.