Being a nearly impossible goal for a long time, I was dreaming of the day when “faking” natural light effects and behavior of materials wouldn’t be the only way to approach something resembling photo-realism. That there would be a way to simulate these things based on effects of real world physics. And finally I’ve got a chance to try Mental Ray for Maya, that had some approximation to real world light physics. Of course it still wasn’t really usable on available resources due to computation requirements, but it was an exciting hope for the future.
In the image above, there are multiple layers of “glass” in the window and the only light source is outside of the room.