A new free CUDA-accelerated bumpmap generator is on the scene called “SSBump”. Runs on Windows XP & Vista, and generates some pretty impressive results.
SSbump generator is a free GUI based program. The purpose of this program is to generate Self-Shadowed Bump Maps for VALVe’s Source game engine. The program can generate normal maps, non-shadowed ssbump maps, or embed directional ambient occlusion into the image.