// Polyray 1.8 file to make a rough-textured moon (or rock)
// based on one of Xander's spherical heightfield demo files
// generate output.tga with the "gforge" program

viewpoint {
   from <0,0,-16>
   at <0,0,0>
   up <0,1,0>
   angle 16
   resolution 600,600
   }

background black
light <-10,3, -20>

define shiny_jpb
texture {
   surface {
      ambient red, 0.05
      diffuse white, 0.8
      microfacet Reitz 10
      }
   }

// Define a hf surface
define planet1 object {
   sheight_field "output.tga", 1/300, 2
   shiny_jpb
   rotate <30, -60, 0>
   }

define sphere1 object { sphere <0, 0, -100>, 100 }

object {
        planet1 // & sphere1 
        shiny_jpb
        // rotate <30, -60, 0>
}