On Wed, 30 Sep 1998 23:12:20 +0100, David Greaves 
	<dav### [at] telekinesyscouk> wrote:
>eerie...
>
>I just posted the same problem on povray.general  - I uploaded a couple of images
>- take a look.
>Same problem? (nb my pipes are bicubic patches - from sPatch)
>
>I used a standard texture T_Silver_5B (ok, I changed the roughness from 1/60 to
>1/20 - but thats all)
>
>I doubt the problem is that which Nieminen describes. All my patches have
>flatness 0 and we're not getting spots or cracks, its a nice smooth (but
>unwanted) light

I can't seem to find it now, but I know I've heard about this problem
before.  It's not something wrong with your code, it's actually a bug
(or at least a limitation) in POV.  I'm not sure whether it is gone in 
3.1 or not.

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