Karl Pelzer <Kar### [at] t-onlinede> wrote...
> > Photons are light,
> So they are comparable to some kind of light source?

Photons are used to replace the light that is refracted through clear
objects.  Traditionally, refracted light rays are not 'bent' realistically.
Photons trace light from the light source into the scene, and thus they are
able to calculate these refractions correctly.

-Nathan

Post a reply to this message