"TinCanMan" <Tin### [at] hotmailcom> wrote in
news:3d18d079$1@news.povray.org: 

> Yes, radiosity uses mosaic for prescanning. (i don't know all the
> technical jargon).
> Try turning of mosaic and adding:
> radiosity{
>   pretrace_start 0.08
>   pretrace_end   0.01
> }
> I hope this is what you were asking and I haven't misunderstood.

Yes. So - if I specify mosaic_preview in hope to render image in same time 
byt to sooner se all image in lower resolution - in fact this walue would 
effect radiosity calculations... 
But maybe this is not good, i.e. I work usualy in :
Width=512
Height=384
Antialias=Off
Preview_Start_Size=128
Preview_End_Size=2

that is suttable for most situations, and I alsow often change my radiosity 
on/off in debugging process... So each time when I set radiostiy ON I 
should disable mosiac_preview and vice-versa.

If just possibility of changing .ini files from inside .pov will be 
returned (it was afair in MegaPov) that this would be easy to 'fix' 

#if (use_radiosity)
  radiosity { ... }
  ini_options { "preview_start=1" }
#end

when this possibiliy will be in Pov ?


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