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- From: tfinn@crash.cts.com (Aaron Grier)
- Newsgroups: alt.sys.amiga.demos
- Subject: Re: Music and Code from Demos
- Message-ID: <1992Nov09.153733.21366@crash>
- Date: 9 Nov 92 23:37:33 GMT
- References: <MKNIP.92Nov6113247@blob.hut.fi> <1992Nov06.161907.20975@crash> <MKNIP.92Nov9165110@blob.hut.fi>
- Organization: CTS Network Services (crash, ctsnet), El Cajon, CA
- Lines: 34
-
- In article <MKNIP.92Nov9165110@blob.hut.fi> mknip@niksula.hut.fi (Mats Anders Knip) writes:
- >> Well plasma on the IBM is currently done via palette cycling...
- >> pretty fast and relatively easy to do (you've just got to do your code
- >> right!)
- >
- >Hmmm... You can't mean plasma. That would require a palette of
- >thousands of colors. Color-bars perhaps, but not plasma.
- >A plasma is (basically) done by changing the background-color of
- >the screen every 2nd cycle (8 pixels) with the copper. For more
- >anvanced plasmas, bitmaps can be used together with fine-scroll
- >(also handled by the copper) and color changes.
- >
- Could you please point me to any amy demos that do have plasma? Does
- substance have it? Hmm... I think I need to know the exact definition
- of plasma before I run my mouth off again...
-
- >> Would someone kindly define what exactly copper and blitter plus
- >> any other amy specifics are?
- >
- >Hope you got some ideas.
- >
- Thanks! Yeah.. the PC still has a way to go. Fact is it wasn't designed
- for demo-making. I guess that's why it took this long. Plus you still
- run into the "multiple-standards"... kinda funny. Well you could say that
- VGA is a standard, as almost all IBM demos do some register level "hacking"
- to achieve their ultra-smoothness. Sound is another matter... lessee...
- you can choose between SB, SB pro, homade DAC, stereo-homade DAC, DMA run,
- timer run, etc... what a mess! :-)
-
- agrier@gompers.gompers.edu (real internet addy)
- tfinn@crash.cts.com (UUCP address)
-
- I want my plasma... also that budbrain demo... that is some cool stuff!
- especially that "it began in Africa" part. Simply awesome.
-