> I wonder how it would change lighting/radiosity effects, if you use *real*
> surface turbulence (isosurfaces) instead of normal statements.  

The answer to your question...

I backed off on the brightness(1.095) and of course the pigment function
is different from what Gilles had as the normal. Also I only did the 
cylinders(laziness).

function{
  pigment{
          agate
          turbulence 0.24
          color_map{[0 rgb 1][.75 rgb 0][1 rgb<.3,.95,.3>]}  
          scale 0.3  
          }
  }

The pigment is later multiplied by 0.15 which cuts into the surface too
much
but it looks neat anyhow.

Total Time:    4 hours 29 minutes  43.0 seconds
Peak memory used:         10044266 bytes
PII 233 , 96 mb

-- 
Phil
...coffee?...yes please! extra sugar,extra cream...Thank you.

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