"Tim Nikias" <JUSTTHELOWERCASE:timISNOTnikias(at)gmx.netWARE> wrote in 
message news:432b29f5$1@news.povray.org...
> The pretracing does preliminary passes on the scene to place and gather
> radiosity sample for reuse. The idea is that when beginning with broad
> sweeps, you begin with placing samples all around the image for starters,
> and then, the more iterations (and also the more detailed the pretrace 
> gets)
> you do, the more samples are placed where needed. It's a refinement 
> process.
> As with all refinement processes, starting with highly detailed settings
> right away doesn't harm, though I think it is better to have a few passes
> for the radiosity algorithm to properly figure out where to place samples.
>
> What I personally like about the pretrace is that you can get a good feel 
> if
> the lighting is right, cause you get a rough render very fast.

   Thank you Tim.

     ~Steve~


>
> Regards,
> Tim
>
> -- 
> "Tim Nikias v2.0"
> Homepage: <http://www.nolights.de>
>
>

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