In the following scene there are 3 almost transparent cylinders, none
of which intersect.  Where the light is passing through all three
there is a nasty black area.  Is this a bug?  Or am I doing something
very silly and haven't noticed?


camera { location <0, 5, -10> look_at <0, 0, 0> }
background { color rgb<1, 0, 0> }

cylinder { <-5, 0, 0>, <5, 0, 0>, 1
  pigment {color rgbt<1, 1, 1, 0.98>}
}
cylinder { <-5, 0, 2.2>, <5, 0, 2.2>, 1
  pigment {color rgbt<1, 1, 1, 0.98>}
}
cylinder { <-5, 0, 4.4>, <5, 0, 4.4>, 1
  pigment {color rgbt<1, 1, 1, 0.98>}
}



All the best,

-- 
Jonathan Hunt
J.H### [at] oaktreecouk

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Put in

global_settings { max_trace_level 10 }

(or some number greater than 5, which is the default).

Silly?  Perhaps.  But I wasted hours making the same
mistake.

Dan


Jonathan Hunt wrote:
> 
> In the following scene there are 3 almost transparent cylinders, none
> of which intersect.  Where the light is passing through all three
> there is a nasty black area.  Is this a bug?  Or am I doing something
> very silly and haven't noticed?
> 

-- 
http://www.flash.net/~djconnel/

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Dan Connelly (djc### [at] flashnet) wrote:
: Put in
: global_settings { max_trace_level 10 }

I'd just like to say thanks for that quick and helpful reponse.


All the best,

-- 
Jonathan Hunt
J.H### [at] oaktreecouk

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