Fran wrote:
>The last bit about the non-linear transformations....
>
>Don't have any idea how to do this but something like
>
>matrix {
>    <formula,formula,formula>
>
>etc
>
>Sorta like a translation matrix.

I am not sure, but a matrix may not work. I would try to deform the *RAY*, not the
object. This is the suggested method in "An introduction to ray tracing", page 115 -
"Deformed surfaces".


Thorsten

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