x-raytrace Increasing the reflectance of a surface and using a grey background means we get white out around the edges of cylinders. By mixing this with a pigment we get grey, irregular bone shapes in the middle. They dont look like bones without the pigment. The "limbs" are an isosurface to get an interesting mixture of bones that look like a fracture in the middle. My second POVRay file. (c) Auld, 2006-