Thanks! "ala Susan" means Susan Kitchens, author of the venerable book "Real World Bryce" - sorry for the confusion. I'll explain--- Think of a terrain at 1024x1024. If have two variants of an image, one I designed as the B&W height map, and the other as a color texture, what I would like to do is lay down the texture (1024x1024 also) directly atop the terrain so that it lines up perfectly!