Hi all,

I was wondering whether someone can explain why this scene renders
differently according to whether the version switch is there or not.
I mean what specifically makes it render so differently?

Regards, 

Lutz

// Different texture, according to whether this is on or not
#version 3.1

#declare PreviewTexture = 
   material  
   {   
      texture
      {      
         pigment
         {
            color rgb <0.66, 0.66, 0.66>
         }      
         normal
         {
            bumps , -0.5
            scale  <1.0, 0.001, 0.001>
         }      
         finish
         {
            ambient 0.3
            diffuse 0.7
            brilliance 5.0
            specular 0.8
            roughness 0.1
            reflection 0.15
         }
      }
   }


camera {  //  Camera PreviewCam
  location  <0.00, -7.50, 3>
  direction <0.0,     0.0,  3.00>
  sky       <0.0,     0.0,  1.0>  // Use right handed-system!
  up        <0.0,     0.0,  1.0>  // Where Z is up
  right     <1.0,     0.0,  0.0>
  look_at   <0.000, -0.100, 0.000>
}

// *******  L I G H T S *******
light_source {   // Light1
  <5.820, -8.500, 6.316>
  color rgb <1.000, 1.000, 1.000>
}

light_source {   // Light1
  <5.820, -1.500, 3>
  color rgb <0.400, 0.400, 0.400>
}


object {
  sphere {<0,0,0>,1}
    material {
      PreviewTexture
    }
  hollow
}

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