Florian Brucker nous apporta ses lumieres en ce 2005-05-18 20:02:
> I got very strange things going on when rendering the following scene:
> 
> 	torus { 1, 1 translate y*(1/0)/(1/0) }
> 
> Some versions of POV-Ray definitely hang over here (even with +w1 +h1).
> Here's what I noticed:
> 
> Linux:
> 3.6.1 official binary: 			hangs
> 3.6.1 self-compiled: 			does not hang
> 3.5 self-compiled: 			does not hang
> MegaPOV 1.1 compiled by Chris Hormann: 	hangs
> 
> Windows:
> 3.6.1 official binary:			does not hang
> 3.7.0.beta.4.icl8.win32:		does not hang
> 
> Linux tests were done by me on a Gentoo Linux, Kernel 2.6.11, AMD Athlon
> XP 2600+, 1 GB RAM.
> Windows tests were done by Lance Birch on a Win2000 Pro, Dual Athlon MPs.
> 
> This is either a issue with the official Linux binaries or with my setup
> over here. I'd therefore be glad if anyone using Linux could render the
> scene himself and post the results.
> 
> BTW: I do no that this translation does not make sense :) But I figured
> if POV-Ray allows me to use inf and nan values, it should not hang on
> them...
> 
> 
> Florian
The strangest thing is that there is no error: 1/0 is NOT a real number and
(1/0)/(1/0) is not defined.
Renders OK here on windows official POV-Ray 3.6.1a

Alain

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