On 01/03/2011 11:58 PM, Bill Pragnell wrote:
> Here's my little attempt. Rendered in 10mins, without aa though. One thing I've
> noticed is that I get a large number of bright single-pixel artifacts unless I
> use large sample counts (using 1000,100 here), even when also using aa. Is there
> any way to avoid this, or is it just the nature of the beast?

Nice but use aa it makes a difference. My samples are only 100, 50. Back 
lighting makes a difference as well.
I used mm_per_unit = 1.105 for the first one and 28.6 for the green one. 
It took well over an hour.
Your image looks more like marble what settings did you you use?

-- 
Regards
     Stephen

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