POV-Ray: Newsgroups: povray.bugreports: Povray 3.7 RC1: unnecessary previews using radiosity: Povray 3.7 RC1: unnecessary previews using radiosity

POV-Ray : Newsgroups : povray.bugreports : Povray 3.7 RC1: unnecessary previews using radiosity : Povray 3.7 RC1: unnecessary previews using radiosity		Server Time 29 Apr 2024 21:04:41 EDT (-0400)

From: m steiger
Date: 3 Jan 2011 05:18:29
Message: <4d21a275$1@news.povray.org>

Hi

If you set 'pretrace_start' to 0.01 and forget to set 'pretrace_end' at 
the radiosity definition the preview calculation will be repeated many 
times before proper pixel rendering will start.

example:
   radiosity {
     pretrace_start 0.01
//  pretrace_end 0.01   // preview error when you forget this parameter
   }

btw. PovRay v3.62 preview calculation is working as expected!
   Using 640*480 resolution and set pretrace_start to 0.01 it displays a 
preview picture with interpolated pixel colors.

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