If you're doing a toon type render, you can do various gray tones with that route

Example of gray tone toon render (done with modified elements from the Sixus Toon shader pack)

Best bet though otherwise is take the textures in and desaturate/remove all color in Photoshop (or whatever you have). I did this for a partial effect on a two part render I did...I wanted a bright colorful scene, but one character needed to be the odd person out. So I just converted all the textures to gray scale, futzed with the levels to help control how light or dark it was and then rendered away.

And that image is here

Crazy alien chick FTW! (yeah....right....)

Realm of Savage - Poser goodies and so much more!


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