Orion Pobursky

Unfortunately, since there aren't any current LDraw programs that support GLOSMAP, the author is reluctant to put in the effort to make one. Since the author is Travis Cobbs, he's...

The immediate use case is for textures of patterns with metallic ink. This is the part that sparked the discussing regarding glossmaps: [https://www.ldraw.org/cgi-bin/ptdetail.cgi?f=parts/2454aps5.dat](https://www.ldraw.org/cgi-bin/ptdetail.cgi?f=parts/2454aps5.dat)

The spec has this to say: > The second optional PNG is used as a glossmap. It should be a single channel image where the value indicates the amount of...

It's up to you to report or not since you're the technical expert and can explain what is happening better than I can.

"Rolling our own" Three.js is prolly a bad idea for a number of reasons. I'm willing to live with this quirk as long as you are since LDraw.org doesn't really...