> I'm afraid <Orchid> is right. I expierenced the same problem in my 
> picture (look 2 threads before; "ouch..") with "mesh"-glasses. The first 
> dozend photon renders gave always some kind of grid like pattern or even 
> isolated sparkles, until I raised the gather radius to smooth them out. 
> But be aware, that your render time might get quit long by doing this.

As I understand it, "gather radius" effectively controls how "big" each 
individual photon is. I would have expected that to require shooting 
*fewer* photons, and hence be *faster*...

OTOH, I haven't actually tried it.

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