This:

http://www.luxrender.net/wiki/index.php?title=Scene_file_format

is pretty much the only documentation I've found on the specifics of the scene file elements.

It's not good enough to fully understand or exploit everything.

I do not have any other exporters to look at what they do. I dl'd the new Blender but I still couldn't understand it, and I could not figure out how to install LuxBlend. They simply don't explain it anywhere. So I gave up on that. If I can guess/test how something works in 10 minutes, then spending 6 hours trying to install LuxBlend is wasteful.

At this point, I know how to do many things in the .lx format, but I have not run into the portal material yet. If you figure it out and can explain it in a paragraph, I'll be sure to hook it up into the material converter quickly. I'm assuming it would be sufficient to treat any object who's name is LuxPortal as a portal. That would make it trivial.

---

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)