Fugazi1968 opened this issue on Aug 06, 2009 ยท 96 posts
bagginsbill posted Thu, 06 August 2009 at 9:54 PM
Quote - Bagginsbill you'd like this thread, there is math in it.
http://boards.polycount.net/showthread.php?t=36160
OK. I read that, and the guys that know what they're talking about said the same as me. The only thing that slightly sounds funny there is somebody mentioned a degree of accuracy possible with normal maps that he claimed isn't possible with bump maps. He's wrong. The expression of a vector using 3 8-bit vector components is no more accurate than the displacement, especially if the displacement is a 16-bit grayscale map. There are certain slopes that cannot be expressed in either, but in practice these are variations that cannot be seen by any human.
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)