stonemason opened this issue on Feb 12, 2009 · 3 posts
bagginsbill posted Thu, 12 February 2009 at 7:11 AM
Yep.
Use a color math subtract node, Value_1 = WHITE, Value_2 = WHITE->your map. That is a negative of your map - all three channels inverted.
Now one more color math Add node, Value_1 = MAGENTA -> your map, Value_2 = GREEN -> your subtract node (the negative).
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)