Vincent Le Chevalier wrote:
> As far as I understand, there is no mixing going on in these methods, 
> not at the ray level. You don't shoot one ray per pixel, you shoot many 
> of them, and make them bounce around surfaces or refract with 
> probabilities according to the transparency.

Curiously, altho each individual photon (in real life), when measured, 
will have either reflected or refracted, I imagine it's also possible 
for photons to interact with each other (in a quantum kind of way) 
before they get back to the camera. So I kind of wonder where the "our 
renderer is based on real physics" claim comes into it...

The *real* problem, of course, is that you're shooting rays from the 
camera instead of the light sources. :-) Reverse that, and all the 
problems (except efficiency) go away.

-- 
   Darren New / San Diego, CA, USA (PST)
     Remember the good old days, when we
     used to complain about cryptography
     being export-restricted?

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