//--------------------------
// example 16
// BUMP texture


color(#ffffff,#555555,#0, 20)

texture(terra/terra011.jpg,4,2)
translate(-6,0,0)
sphere(4)



bump(bump1/Gravel-2457b-bump-map.jpg)
texture(terra/terra011.jpg,4,2)
translate(6,0,0)
sphere(4)