POV-Ray: Newsgroups: povray.bugreports: Probable thread safety issue in functions using splines. 3.7.0.RC7.: Re: Probable thread safety issue in functions using splines. 3.7.0.RC7.

POV-Ray : Newsgroups : povray.bugreports : Probable thread safety issue in functions using splines. 3.7.0.RC7. : Re: Probable thread safety issue in functions using splines. 3.7.0.RC7.		Server Time 25 Apr 2024 19:25:09 EDT (-0400)

From: waggy
Date: 3 Jun 2013 15:00:00
Message: <web.51ace69c288b02da21be1230@news.povray.org>

William F Pokorny wrote:
> I believe I've hit a thread safety issue. Could someone confirm? Running
> Ubuntu 12.1. I'll also post images to p.b.images.

I see the same behavior under Ubuntu 12.04, AMD 2431 CPU, Linux 3.2.0-45 kernel.
The artifacts appear for any value of worker threads (+WTn) when n is greater
than 1. The artifacts differ with each render, even for the same number of
worker threads.

I rendered it using 3.7.0.RC7 (g++ 4.6 @x86_64-unknown-linux-gnu) as follows:
povray +P +WT6 somefilename.pov

FWIW, using povray -D +WT6 somefilename.pov yields similar results.

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