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Author Topic: Amiga Animation and CHIP RAM versus FAST RAM  (Read 21355 times)

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Offline JetRacer

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Re: Amiga Animation and CHIP RAM versus FAST RAM
« on: March 30, 2008, 02:52:45 AM »
Short answer: yes it could.

The bandwidth of 320x200 HAM6 is 2.75MB/sec and the A500 bus (split in half between cpu/co-proc) was 7MB/sec. Since software was often lean (read: in a commercially viable state) simple double buffering and using both cpu and co-proc would problably do the trick quite effortlessly. Though in practic replay in DeluxePaint would probably be mandatory.

Fast ram could be used for storage, but not display - the whole thing must fit into max avail for 60Hz replay and this detail resolves that issue.

Fun fact: even modern PC's have major difficulties working under similar conditions (read: massive MB 320x200 raw animation replayed with flawless 60hz fps). It's ofcourse the OS of Win/Linux/Mac that bogs down performance and nothing else.
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Offline JetRacer

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Re: Amiga Animation and CHIP RAM versus FAST RAM
« Reply #1 on: March 30, 2008, 04:46:16 AM »
@ bloodline: notice how I didn't write compressed video replay but raw video (more accurately: animation).

An attemt to make a modern OS display and loop a +16MB raw feed flawlessly in 60fps will in 99.9% of all cases fail miserably. If not at replay then when it "loops" and halt for 0.5 sec to re-loading the whole thing or some similar dumbass behavior.
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Offline JetRacer

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Re: Amiga Animation and CHIP RAM versus FAST RAM
« Reply #2 on: March 31, 2008, 01:24:39 AM »
@ varius people: I didn't try to claim some Amiga superiority nut opinion nor anything. -Ofcourse there exist dedicated video editing stuff that does this flawlessly for every platform. I meant some basic form of diplay tool most people use. Such always performs/behaves equally poorly under previusly mentioned circumstances no matter which platform one turns to. That's all.
*Zap! Zap!* Ha! Take that! *Kabooom!* Hey, that\'s not fair!