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In article <3e4f76df@news.povray.org>, "Meow Cat" <wyr### [at] hotmail com>
wrote:
> BTW, I posted a picture demonstrating this bug to p.b.i, have a look at your
> leisure.
Ah...it looks like confusion on your part, not a bug. When the sphere is
transparent, you are seeing its interior surface, which has a different
slope because its normal points in the opposite direction. I'm guessing
your function doesn't take this into account, I don't see how you could
do it with current functions. Try clipping a sphere in half with a plane
and compare its inside surface with the outside.
You could probably use interior_texture to fix this.
--
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/
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