> Sounds like you'd still have the problem caused by shadows, reflections and
> refraction.


Hmmm...i don't think i will. Could you please point out why? I cannot
think of any problem here.


Let's do a mind-experiment. Ray is being shot from camera. Ray
intersects cube in the scene. Vector is calculated from
intersection-point to light_source and checked to all object in scene to
see if intersection-point is obscured by anything (in shadow). 

Now, if there is a motion-blur object between our cube and light_source
we should use same approach as if our blur-object is intersected by
camera-ray. Object is jittered in time domain, some value between fully
obscured and fully lighted is obtained , and that value is used to
determine color of that pixel.

Correct me if i'm wrong.



Cheers, Goran

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