It looks good, some aspects of iridescence are still missing, but it's
probably difficult to simulate with povray anyway.  

I found that combining radiosity with shaders somehow leads to strange
results, in this case radiosity should not have much influence on the
object, but i did not manage to achieve that.  

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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