You can import bump maps into Bryce just as you would import a texture map. The only difference being, import to a channel other than that used by your texture map. For instance, you import your texture map into channel "A" and select the diffuse and ambient circles and adjust the sliders appropriately. You can import your bump map into channel "B" and select the bump circle and adjust the slider appropriately (this one is rather sensitive - start out around 10% and go from there). You can do the same with specular maps, etc... to fill all four channels, if you wish. Generally speaking, though, specular and reflectivity components are handled well within Bryce - better than you could do with a map. Remember that all the rules that apply for your texture map apple for your other maps - i.e. if you had to flip your texture map on the x axis, flip the bump map as well. Also, note that (in Bryce 3) large maps can cause large headaches unless you have large amounts of RAM. If you have problems, try loading the bump map BEFORE the texture map - or - reduce the size of the map to 1500x1500 or less. I don't know if Bryce 4 handles this better or not. Hope this helps, -ScottK