>> Because it reuses a single sample for multiple pixels. That means it 
>> needs to take about one millionth of the number of samples that this 
>> program takes. Hence, a *slight* speed difference.
> 
> Which will mean nothing if it doesn't move on to GPU like everyone else 
> and begins eating dust for such slow and more realistic renderers.

The GPU has been producing graphics far faster than POV-Ray for decades. 
It's only now that it can start to do the sorts of things that POV-Ray 
can do.

I haven't yet seem a GPU renderer that can render actual curves. Also, 
can any of these unbiased renderers handle scattering particle media yet?

>> ...which still has nothing to do with *this* program.
> 
> ah, I thought you were talking about unbiased renderers in general.

No, I was just pointing out that this particular program may take many 
hours to render something that POV-Ray does in minutes because POV-Ray 
uses a totally different algorithm.

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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