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Trap
Registered: Jul 2010
Posts: 223 |
First raster split?
Something that's been on my mind for years ... wonder if I will ever find the answer:
Who did the first real raster split? I did mine in 1987, but I don't think I was the first?
Trap Crap Wrap |
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Stone
Registered: Oct 2006
Posts: 172 |
Are you talking about who did it first in the scene, or first ever (in a publicly available production?)
I remember the first time I noticed a raster split. It was in the game "Choplifter", which came out for the '64 in 1982 or 1983.
Other than that, I think Danish Crackers were among the first in the scene to use raster splits in their intros (1984): Danish Crackers Intro
By hacking that intro, I learned to code raster interrupts, so my first intros with raster splits were coded in '84 or '85. |
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TPM
Registered: Jan 2004
Posts: 110 |
okay.. stupid question: what's the rastersplit in DC's intro? |
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Trap
Registered: Jul 2010
Posts: 223 |
I was thinking vertical split, not horizontal split. Sorry, That was definitely not clear in my first post. |
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SIDWAVE
Account closed
Registered: Apr 2002
Posts: 2238 |
Triton Technology was the first i saw to do it |
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Stone
Registered: Oct 2006
Posts: 172 |
Quoting TPMokay.. stupid question: what's the rastersplit in DC's intro? There's a $d016 split for the scroller. |
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The Phantom
Registered: Jan 2004
Posts: 360 |
I did the first vertical split on my Atari 600xl computer, back in 1984. |
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tlr
Registered: Sep 2003
Posts: 1787 |
Perhaps ABC Crackings Raster Intro? |
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SIDWAVE
Account closed
Registered: Apr 2002
Posts: 2238 |
TLR: its not straight :D and not stable :D |
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tlr
Registered: Sep 2003
Posts: 1787 |
Quote: TLR: its not straight :D and not stable :D
It's not straight but I'd say it's, from the viewers perspective, controlled in a stable manner.
It does use an unconventional technique though.
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JackAsser
Registered: Jun 2002
Posts: 2014 |
Simply setting $d020 every 63d cycle (or as often u like) will make a straight split (given the screen is turned off with $d011=0). Making the split not jump around each frame and making the split occur at the same x-position always is what is called a "Stable raster" which I'm sure Trap looks for. |
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