Making maps absorb GI

[Dynedain]

If you adjust the output of a map within max using the curves provided, and you take part of the map below 0, does that mean that the material will "absorb" GI?

I have a diffuse map that's easier to adjust in Max than in PS to get what I want, and I'm curious about how this affects the GI solutions with VRay. I know that if I take the map's output above 1, that the map will generate light in the scene (because it bounces more than it receives). Is the inverse true?

[studioDIM]

Nope, it clamps at 0.0, however much you push it.
I tried -1000.0 as rgb multiplier, and 0.0 and there is no difference whatsoever in speed or final image results


Lele

[Dynedain]

That's great to know. Thanks!

I can see the need for having and adsorbing material, but I was just afraid what I was doing would be unintentionally doing that.

[joconnell]

Negative lights are the only things that can do that really. Black materials kill light but can't actively suck it out of a scene in the way you describe.