And finally, the maths nodes I used. The Math_Function> Add converts the tex to grayscale and the Math_Function> Gain ups the contrast. I'm sure there are better ways to do this. I'll go back and look at the HSV node too. Presumably HSV stands for Hue Saturation Value, so that might be even better. If anyone has advice, I'm up for it. mac PS Please don't tell me your hungry! I was hungry too when I spent an afternoon photographing pizzas. Not to mention spending the time tweaking the texs in photoshop and rendering in poser.