There’s something about a mesh I’m using that causes color loss when I apply auto LOD: https://playground.babylonjs.com/#TA8LXM#1
This issue obviously doesn’t arise with most meshes. But I can’t figure out what it is about my particular mesh that’s causing this issue. Much thanks for your help.
Guess what? It was a bug 
The fix will be pushed to master and to the nightly in a hour or so
Good catch!
Thanks for your help with this. It’s incredible how responsive you folks are! I really appreciate it.
I can confirm that the colors no longer disappear. But I’m having a hard time actually simplifying the geometry of my molecule mesh. Here’s an updated playground example:
https://playground.babylonjs.com/#TA8LXM#3
When I try to simplify the molecule, the number of vertexes doesn’t change. On the other hand, when I try to simplify a sphere mesh, it works great.
Any ideas? Thanks again.
Trying to ping @RaananW (if he still around :)) as he wrote the simplification engine
Hi @Jacob_Durrant,
TL;dr - I think it has something to do with the colors vertex data. But I can’t find the concrete reason.
I can’t find the file’s history in git anymore (it has moved one too many times), but I remember fixing an issue with colors when I implemented this (a few years ago). (Deleted a sentence here)
I will try finding time to debug this later this evening, but as some here have probably noticed, I don’t have a lot of time lately 
Glad to see you back mate!
Sorry (sorry sorry sorry!) for the delay. I’m in Japan (family business) until next Tuesday and promise to find the time and look into that