Thanks Ron.  Would you please point me to an example of how to nest the
blend maps?

Jim

"Ron Parker" <ron### [at] povrayorg> wrote in message
news:slr### [at] fwicom...
> On Fri, 22 Jun 2001 18:01:22 -0400, Jim Kress wrote:
> >Thanks Ron.  Any way to make that bigger without code modification?
>
> You can sometimes get away with nesting blend maps, but that can get very
> ugly very quickly.
>
> --
> #macro R(L P)sphere{L F}cylinder{L P F}#end#macro P(V)merge{R(z+a z)R(-z
a-z)R(a
> -z-z-z a+z)torus{1F clipped_by{plane{a 0}}}translate V}#end#macro Z(a F
T)merge{
> P(z+a)P(z-a)R(-z-z-x a)pigment{rgbf 1}hollow interior{media{emission
3-T}}}#end
> Z(-x-x.2x)camera{location z*-10rotate x*90normal{bumps.02scale.05}}

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