I again tried to give a Bryce 3.1 image a pattern of bumps read from a graphics file bump map, but I could not. I found that, in the Materials Lab, if one of the columns A B C D contains a texture read from a graphic file rather than a (texure made from noise in the Deep Texture Editor), that column is only obeyed if it is selected in the top part labeled Color', rather than in the lower parts labeledValue' or Optics' orVolume'. I can use a graphic file as a color map or an ambience map or a transparency map, because they all appear in the `Color' part; but not with bump. This is a nuisance. Bump maps can be used in Poser (a *.BMP file renamed *.BUM, I think), but not in Bryce 3.1 . E.g. I have 3 Poser models of backpack devices; easier than separately posing several backpack straps as multisegment uncooperative serpents of articulated parts, I would like to make their backpack straps in a Bryce scene by painting them onto the wearer's color map <<>>. PLEASE!!!