Bizarre lighting issues in RVZ...

[Fawfulfan]

Take a look at this glass wall. It's fine, right?

Well, I'll just rotate the camera a tiny bit to the right and wait a minute...why'd everything get so dark?

Okay, let's rotate it a little more...hang on, now the lower pipe has a colormap?

I rotate it a teensy weensy bit more, and now the whole thing has a colormap!

 

[Liliam]

I don't think this can be fixed. Blame the software renderer for being over a decade old.

 

[SSNTails]

I think it can be worked around by changing the way the level is constructed there a bit.