Hello Everyone,
    I am executing the csg_box example with no errors. I have modified the 
exampleto use a mesh2 in place of the box because I want to take the 
difference of the box (mesh2) and a sphere so I can see the inside triangles 
of the box. I want to be able to see the inside of the boxes' triangles 
(mesh2) after I cut away the sphere. I don't want to see the curved slice 
that the sphere made. Currently, I see the background through the sliced 
hole but I really want to see the inside of the box (mesh2).

I am using the difference function. Does this function use the stencil 
buffer? Is there a way to get the vertices back after I cut a chuck out of 
the box?

Here is my code:
// Persistence of Vision Ray Tracer Scene Description File
// File: mesh2.pov
// Vers: 3.5
// Desc: mesh2 demonstration scene
// Date: November/December 2001
// Auth: Christoph Hormann

// -w320 -h240
// -w512 -h384 +a0.3

//#version 3.5;

global_settings { assumed_gamma 2.2 }


light_source { <-10, 3, -20> color red 1 green 1 blue 1 }

camera {
   location  <0, 0, -8>
   direction <0, 0, 1.2071>
   look_at   <0, 0, 0>
}

background {
  color rgb < 0.60, 0.70, 0.5 >
}

#declare Mesh_C=
mesh2{
  vertex_vectors{
    8
    <-1, -1, -1>, < 1, -1, -1>,
    <-1,  1, -1>, < 1,  1, -1>,
    <-1, -1,  1>, < 1, -1,  1>,
    <-1,  1,  1>, < 1,  1,  1>,
  }

  face_indices{
    24,
    <1,0,2>, // bottom
    <2,3,1>,
    <1,2,0>, // bottom inside
    <2,1,3>,

    <4,5,6>, // top
    <5,7,6>,
    <4,6,5>, // top inside
    <5,6,7>,

    <5,1,3>, // right
    <3,7,5>,
    <5,3,1>, // right inside
    <3,5,7>,

    <0,4,2>, // left
    <2,4,6>,
    <0,2,4>, // left inside
    <2,6,4>,

    <2,6,3>,// back
    <2,7,3>,
    <2,3,6>,// back inside
    <2,3,7>,

    <0,1,4>, // front
    <1,5,4>,
    <0,4,1>, // front inside
    <1,4,5>,

  }

}

difference {

object {
  Mesh_C
  //texture { Mesh_TextureA }
  //rotate 180*z
  //rotate 90*x
    finish {
       ambient 0.2
       diffuse 0.8
    }
    pigment { color red 0 green 0 blue 1 }
    translate <-1.5, 0.5, 1>
}

sphere { <0.0, 0.0, 0.0>, 1
   finish {
      ambient 0.2
      diffuse 0.8
      phong 1
   }
   pigment { color red 1 green 0 blue 0 }
}

}

Thanks,
Tim

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