POV-Ray : Newsgroups : povray.general : [bug] Very slow rendering : Re: [bug] Very slow rendering Server Time
31 Jul 2024 14:20:50 EDT (-0400)
  Re: [bug] Very slow rendering  
From: William Peska
Date: 28 Jan 2007 09:20:41
Message: <45bcb139@news.povray.org>
Tim Attwood wrote:
> The line
> #local fchecker = function { pigment { checker } }
> probably should have been
> #local fchecker = function { pigment { checker 0 1} };
> The default colors for a checker pigment are green
> and blue. Since you later evaluate the gray values,
> which should be nearly equal, I think somewhere
> the pov engine gets confused.

With the following definitions of fchecker the problem remains:

#local fchecker = function { 0.11 + 0.48*(sin(pi*x)*sin(pi*y)*sin(pi*z) 
< 0) }

#local fchecker = function { 0.11 + 0.48*(sin(3*x)*sin(3*y)*sin(3*z) < 0) }

William


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