Mental Ray Fast Skin issues

Neox

Hello guys i'm having some weir problems with MRs SSS fast skin material, no matter what i do, no matter what lightsources i use, the brightest part will always be grayish.
I thought it might be some gamme stuff but as you see other MR shaders can get white. I really don't know whats going on and its driving me crazy

r_fletch_r

thats really odd. Have you tried stripping back the shaders features and re introducing them one by one. Dropping the weights of the various skin layers to zero and eliminating any reflections then turn the features back on until you find the element that is causing the problem. it looks a little bit like a very very low gloss value in one of the specular terms

It could also be that your scale isnt physically accurate and your light or the shader cant function at the scale your working on. try tweaking the scale conversion factor and see if that effects things

Neox

i found already out what it was, i just checked every option and there was this one feature that clamped the shading

- 'screen' soft compositing of layers -

just tick that off and its usable