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Old 01 March 2015, 16:52   #8
Mrs Beanbag
Glastonbridge Software
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Join Date: Jan 2012
Location: Edinburgh/Scotland
Posts: 2,202
Originally Posted by Leffmann View Post
Back in the day I remember being baffled by this:
[ Show youtube player ]
[ Show youtube player ]

I couldn't figure out how they could do all the necessary calculations for each and every pixel, that many pixels and in 50 FPS on a stock A1200. Eventually the light came on, I realized how really simple it actually was and wrote my own.
go on then, spill the beans!

i'm guessing it's something to do with two sets of four bitplanes containing circular patterns, and clever ordering of the palette.
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