Invisible a écrit :
> scott wrote:
>>
>> Unless you start some rays from the point light to add into the mix 
>> (in a physically correct way of course).
> 
> Well... presumably it still traces rays "backwards" from camera to 
> source, right?
> 

Not in every method. For example bi-directionnal path tracing, if I 
reckon correctly, creates random (but physically correct, of course) 
paths linking light to camera. So it works with point lights pretty well.

-- 
Vincent

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