I've done some more research on this and found that the correct embossment angles appear to be as follows (Photoshop Stylize-emboss filter for each channel of Red and Green, with Blue filled with Black) Green: 90 degrees Red: -30 degrees For the nicest look I've found that it works best to elarge the bumpmap to 200% first, then do the embossing channels thing with the emboss set to depth of 1 and amount at 100%. Then I run an unsharp mask at 100%, 1 radius, 0 threshold, then I shrink it back to 50% (thus the original size). Inverting green is close, but not quite it exactly.