Fugazi1968 opened this issue on Aug 06, 2009 ยท 96 posts
bagginsbill posted Thu, 06 August 2009 at 9:04 PM
When you say "not from a grayscale image", now the words are being twisted. Forget the term grayscale image. Instead, think "topology delta matrix". Given a topology delta matrix, i.e. the difference between two meshes as measured along the surface normal vector from one to the other, you end up with exactly the data found in a bump map.
See what I mean? From that, you can construct all the normals.
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)