csg.scn

scene{

	camera = view {
		from = {0, 0, -4}, at = {0, 0, 0}, up = {0,1,0}, fov = 60
		},
	
	light = dist_light {direction = {0, 1, -1} },

	object = csgobj{ 
		material = plastic {  ka = .2, kd = 0.8, ks = 0.0 },
		shape = csg_diff {
				csg_prim{ sphere { center = {0, 0,  0}}},
				csg_prim{ sphere { center = {1, 1, -1}}}
			}
	}
};