Perhaps something like this might work - if the calculation of weights can be
handled. The weight of a sample has to be proportional to the area of the sky it
represents (in the simplest case that the surface reflects only diffusely). I am
not sure how this can be efficiantly calculated with uneven distribution of
samples.

Margus

Nieminen Juha wrote:
> 
>   Perhaps there could be a special keyword that you could apply to objects
> which tells povray "this object is very small and very bright, so send more
> radiosity rays here".
> 
> --
> main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
> ):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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