POV-Ray : Newsgroups : povray.general : POV-Ray hangs when using invalid numbers : POV-Ray hangs when using invalid numbers Server Time
1 Aug 2024 20:08:43 EDT (-0400)
  POV-Ray hangs when using invalid numbers  
From: Florian Brucker
Date: 18 May 2005 13:59:48
Message: <428b8294$1@news.povray.org>
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
-- 
camera{look_at-y*10location<8,-3,-8>*10}#local a=0;#while(a<999)sphere{
#local _=.01*a-4.99;#local p=a*.01-5;#local c=.01*a-4.995;<sin(p*pi)*5p
*10pow(p,5)*.01>sin(c*c*c*.1)+1pigment{rgb 3}}#local a=a+1;#end
/******** http://www.torfbold.com ******** http://www.imp.org ********/


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