Maybe this is already a well known problem, but i'm just wondering:

union { 
  sphere { <1, 1, 1>, 0.5 material { XX } } 
  sphere { <1, 1, 0>, 0.5 material { XX } } 
  sphere { <0, 1, 1>, 0.5 material { XX } }  
  sphere { <0, 0, 0>, 0.5 material { XX } } 
}

makes povray put out:

'no pigment type given.'

when leaving away union {} or using only textures it does not create this
message. Same problem occurs with merge{}/intersection{}/difference{}.  

This does not hurt much since it renders as expected, but it's really strange.  

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/

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