Let's say for the sake of argument that SM gives you the values. How do you make Luxrender accept them? Understand them? Does each person need to do mathmatical equations for each material in order to do so? If that's the case, I think I'll just stick with LuxBlend...lol. Luxrender directly understands the output ;). I'm not trying to be argumentative, I'm just trying to understand...lol. The only way I can see it working is if you wrote your own version of Luxrender. Is that the idea? Laurie