Chris, you can do exactly what you want to do: use one terrain and one material. First, make a single terrain picture for the whole set of islands. You probably want to use a large resolution. Second, copy the terrain picture from the Bryce editor (or wherever you made it) into an image editing program, such as Adobe Photoshop, or Paint Shop Pro. You can do it all in the Bryce Terrain editor as well, but it's a bit of a pain. Third, select all areas in this new copy of the terrain picture that you want to be "grassy" and paint them white. Then, select everything else (which will be the "sand") and paint it black. You should have a black-and-white image. Now, blur the image a bit. You can even use some of the distortion mapping functions if that floats your boat. Now, copy your modified image. Go back to bryce, click on your new single-terrain, and open up the Materials editor. In the components grid, HOLD DOWN CTRL and put a dot in component 'C' for the Diffuse Color row. Three dots should appear in the A,B, and C columns, and 3 textures should appear at the right. This is called "ABC" mode. Yes, that's a technical term :^). The 'C' texture controls where the A and B textures are applied. dark areas of the C texture result in the A texture being applied, and light areas result in the B texture being applied. (or is it vice-versa?) Change the C texture to a Pict texture, and load in your modified picture. Refer to your manual. Change the A texture to your grass texture, and the B texture to your sand texture, and voila, you're done! I apologize if this is a little confusing: if it doesn't make sense, e-mail me and I'll write you something more complete: I'm at work right now and don't have all the tools. --flick