From: Jim Brain (brain_at_jbrain.com)
Date: 2004-11-01 04:33:20
>>Want to know one of the more time-consuming operations in 3D graphics? >>Clearing the screen. No matter how fast of a plotting algorithm I have, >>it still takes at least 8*40*25*4=32000 cycles to clear a full screen -- >>about two frames. If you had a way to instantly clear out a section of >>memory... >> >> Since we're talking about extra HW here anyway, you can do this in 8000 cycles with an REU, correct, by tying the source address in the REU to a zero byte, and DMAing 8000 copies. Jim -- Jim Brain, Brain Innovations email@example.com http://www.jbrain.com Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! Message was sent through the cbm-hackers mailing list
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