George Pantazopoulos wrote:
> 
> In the ideal case, you would want to use completely random rays, but POV-Ray
> does not do this.

This is not really correct.  Completely random directions would not lead 
to better but worse results (you can easily try this).  There are 
sometimes artefacts due to the sample set being the same everywhere - 
MegaPOV has a patch for this purpose.  But apart from that using an 
optimized set of sampling directions is the best method.

Christoph

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