CompuServe Messages

Gasp! ANIM speed

    05-Jul-91 23:38:03
Fm: Kevin Darling 76703,4227
To: Charles Blaquiere 76046,1756
Unless my math is wrong, each full frame (both fields in your 440-line anim) (30 fps max) is over 150K of data. Now, most programs create anims whose data are only moved _one_ byte at a time into chipram… which in the video mode you're using (hires, all planes, overscan) allows only about 20K-changes per frame-time. Assuming massive changes are taking place (and it sounds like it), that gives your 3.8 fps. However, an A3000 can theoretically move 80K/frame in the same mode (by moving 4-bytes at a time), allowing up to 15fps. So your idea of either using a different anim format, or copying from chipram, are good ones. You could quadruple your rate. – kev