POV-Ray: Newsgroups: povray.general: Trace from a surface?: Re: Trace from a surface?

POV-Ray : Newsgroups : povray.general : Trace from a surface? : Re: Trace from a surface?		Server Time 5 Aug 2024 04:18:50 EDT (-0400)

From: Christopher James Huff
Date: 4 Dec 2002 23:14:58
Message: <chrishuff-CD6CFC.23115404122002@netplex.aussie.org>

In article <3deeca39$1@news.povray.org>,
 "Greg M. Johnson" <gregj:-)56590@ao:-)l.com> wrote:

> What is pov going to do if you do a trace call from a point that is exactly
> on a surface--
> i) always report that surface,
> ii) always report the next one it hits in your specified direction,
> or
> iii)  give haphazard results

D) intersections too close to the start of the ray are ignored. You 
should still be careful with it though...

-- 
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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