Poser 6 also has two bump channels. If you are using a bump map that is a .jpg, plug it into the bump channel. If you are using a Poser 4 .bum file, or a normal map (something made in 3DMAX, similar to a bump map), then use the gradient bump channel. To make a bump map you can just use the original texture (plug the texture into the bump channel as well), but the results are vastly improved if you make a proper bump map in greyscale (50% grey is neutral, 100% white is raised, and 100% black is a dent/depression).

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