POV-Ray : Newsgroups : povray.beta-test : Long parse time : Re: Long parse time Server Time
29 Jul 2024 06:19:42 EDT (-0400)
  Re: Long parse time  
From: Francois Labreque
Date: 15 Feb 2004 22:06:30
Message: <403033b6$1@news.povray.org>
Program ended abnormally on 15/02/2004 15:44, Due to a catastrophic Gilles Tran 
error:


> news:402a932d$1@news.povray.org...
> 
> 
>>Does anyone noticed similar behaviour ?
> 
> 
> In addition to meshes, a simple loop causes it too.
> 
> #declare i=0;
> #while (i<100000)
>     sphere{0,1 translate x*i*2 pigment{rgb x}}
>     #declare i=i+1;
> #end
> 
> Takes 19s with 3.6b1, 8s with 3.5
> Intel P4 1.7Gz, Windows XP HE SP1, 1GB RAM.
> 
> G.
> 

I figured that on a slower machine, the difference would be more noticeable,

Version:	Parse times:
--------	------------
POV 3.1:		19s.
MegaPOV 0.7:		20s.
POV 3.5 (ICL):		17s.
MegaPOV 1.0 (MSVC):	20s.
POV 3.6 (beta1):	28s.

I noticed that 3.6 updates the status line while parsing this scene while 
previous versions only had a "parsing..." message, maybe the added calculations 
and time spent updating the status line have something to do with it.

-- 
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/*    flabreque    */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/*        @        */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/*   videotron.ca  */}camera{orthographic location<6,1.25,-6>look_at a }


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