Pick the surface. Thence in surfaces change diffuse to 0% or black really black 0-0-0 Thence in surfaces change specular to 100% gray like 192-192-192 Thence in surfaces set glossiness to around 75% Thence in surfaces change reflection color to gray also 192-192-192 Thence in surfaces change Ambient to 0% Thence in surfaces reflection color If there is a reflection map change it to none. Thence in surfaces set refection to about 95% This will give you a start you can play with it from there. this is not for poser or I ray Daz only