custom cube maps are possible!!!!!

What's cube map?

a texture to replace reflections/glows (like cm_baremetal or cm_bright) some people around here call them shaders, but that's not entirely a correct way to put it

As an addendum to DS's comment, a cubemap is used in a .txi file with the following:

envmaptexture

And basically gets mapped over the alpha layer. As the alpha layer gets closer to black, that part of the texture would normally develop a transparency, becoming completely invisible at black.

When you use the envmaptexture though, the texture is applied in varying intensities instead of the transparency.

The most common use is envmaptexture CM_Baremetal for the shine effect on armor, like the Sith Soldiers.

Oh, right. I've just called them envmaptextures, because of the word in .txi files. Good to know, thanks.