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- Nntp-Posting-Host: holmenkollen.ifi.uio.no
- Newsgroups: alt.sys.amiga.demos
- Path: sparky!uunet!mcsun!sunic!aun.uninett.no!nuug!ifi.uio.no!larshaug
- From: larshaug@ifi.uio.no (Lars Haugseth)
- Subject: Re: Phenomena egos??
- Message-ID: <1992Nov13.130146.14587@ifi.uio.no>
- Sender: larshaug@ifi.uio.no (Lars Haugseth)
- Organization: Dept. of Informatics, University of Oslo, Norway
- References: <1dg7r7INNjil@gap.caltech.edu> <1992Nov7.203516.9849@ringer.cs.utsa.edu> <MKNIP.92Nov12144453@wolverine.hut.fi>
- Date: Fri, 13 Nov 1992 13:01:46 GMT
- Lines: 31
- Originator: larshaug@holmenkollen.ifi.uio.no
-
-
- In article <MKNIP.92Nov12144453@wolverine.hut.fi>, mknip@niksula.hut.fi (Mats Anders Knip) writes:
- > > Amiga demos does NOT do many "hardware tricks", as the Amiga hardware
- > > can't be fooled to do things it shouldn't, as the hardware of the C64,
- > > which has lots of "features" (such as border sprites etc.). The Amiga
- >
- > Just a note for fun...
- > You can in fact fool the Amiga to show sprites in the border as well by
- > updating the spritepointers manually instead of with the copper... 8^)
- > We did that in an intro about a year ago (Total Perspective Vortex/Frantic)
- > and I can't recall that I've seen it done ever since. Does anybody else
- > know if it has been done? (not that it was any difficult, but still a
- > very nice effect).
- > (For those who didn't know it, using 8 sprites disables a word from
- > each side of the screen. Time used by the copper to update the
- > pointers, I guess. This is the area that can be eliminated)
- >
-
- Another nice "hack" on the Amiga, is to have more than 8 sprites
- on a single raster-line. It is pretty easy, you just use the copper
- to set the xposition of the sprites more than once pr.line.
-
- +-----------------------------------------------------------+
- | Lars Haugseth +-+
- | Dept. of Informatics, <larshaug@ifi.uio.no> | |
- | University of Oslo, Norway | |
- | | |
- | If idiots could fly, this would be an airport... | |
- +-+---------------------------------------------------------+ |
- +-----------------------------------------------------------+
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