inklaire opened this issue on May 23, 2010 ยท 242 posts
bagginsbill posted Tue, 01 June 2010 at 6:20 PM
Instead of IDL, I used IBL to produce some sort of secondary lighting. But the big problem with IBL is it is uniform through the whole scene. It is incapable of capturing the fact that the amount of ambient light varies across the scene. When you use IBL, the secondary light is the same throughout the entire universe.
IDL does not make that error. It varies the amount of secondary light according to how much bounced primary light is nearby. Thus, accuracy is increased.
The IBL image is not terrible, but compared to the IDL image, it is more wrong. Very much more wrong.
Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)