"John VanSickle" <evi### [at] hotmailcom> wrote in message
news:3DADCA36.7F4E6362@hotmail.com...
>
> Take the resulting three images, and base a pigment_pattern on each
> one.  Combine the results.  This enables you to set varying levels
> of discrete color.
>

????

> Another trick you would try would be to define where you camera is,
> then develop a macro which takes the specs for a primitive and builds
> an outline around it; you will need to know the camera specs in order
> to correctly position the outline object.
>

This paragraph spawned an idea of simply using slope!

 pigment {  slope {-z }
        pigment_map{
        [0.65 rgb 0]
        [0.65 rgb <.9,.5,0.2>]
        }
  }
finish{diffuse 0 ambient 1}}

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