In article <3dbcb040$1@news.povray.org>,
 "Greg M. Johnson" <gregj:-)56590@ao:-)l.com> wrote:

> 3D World had an article about this, but I couldn't find an online link.
> 
> http://www.digitalproducer.com/2002/07_jul/news/07_22/pixar_exluna.htm
> 
> Pixar sued a rival, and one of the object of contention was the
> anti-aliasing technique.  Is POV OK?

If you are asking if anyone has a patent on something used in POV, the 
answer is yes. Given the amount and type of stuff patented, there has to 
be. Even if there weren't, POV still wouldn't be "safe". This particular 
patent was on a kind of "random sampling" as I recall...they could 
probably claim it applies to POV antialiasing, area lights, photons, 
media, radiosity...fighting them off would not be easy.
Fortunately, the POV Team probably isn't a very high-priority target.

-- 
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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