I've been working on a program. Right now, I guess only 3 hackers besides me are importing OBJ files (yes, I've started importing thingies, look that venom). I'm the only one of them that knows how to enable shades on them. And probably I'm not doing it the good way. Still, it works, and imports look better, and for the community, I guess it's better to share the knowledge, so no more flat-material stages are made anymore.
It's easy to fix, but I've prefered to make this program to make it even easier. I present you 'Material Tool'

This is Great Bay, originally imported by DSX8 and textured by Ryan to make it look more shaded. Now with real shades, which may look weird depending on the polygons themselves and such. But, still, they don't look flat anymore.

For questions, just ask me here, or via PM.