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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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Joe
Registered: Apr 2002
Posts: 227 |
@Jan: No, the screen is neither bitmap & rastersplits in Gryphon but made by chars and on top there is some fancy interlaced chopped rasters. Was it those you meant (the loading look-a-like flickering of lines)? |
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Stone
Registered: Oct 2006
Posts: 172 |
Quoting LocalHIMO, "raster splits" are always "vertical" - since you're splitting the raster mid-line. Otherwise, standard rasterbars would be considered a split, and I don't think anyone with any knowledge whatsoever calls them that =P
Dude, get over yourself. Are you saying that ye olde sceners had no knowledge? We didn't have the internet, only the Commodore 64 Reference Guide, our machine code monitors and other people's binaries, but still we got things done.
Commence quoting of "Four Yorkshiremen" |
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LocalH
Account closed
Registered: Jan 2002
Posts: 10 |
Ok, let me quantify what I said a bit - I should have said "in recent times". Back in the old days, sure, things were different. But as times and techniques have advanced, the term "raster split" seems to be most commonly used for mid-line splits. Myself, I always used the term "screen cut" for the per-line, offscreen kind.
I didn't mean to demean anyone else's knowledge, just was saying that I had never seen anyone use "raster split" to mean what I have called a "screen cut". Probably could have said that with a little more tact, though, so my bad on that one. |
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lemming
Registered: Oct 2009
Posts: 44 |
Interesting discussion, I'd be very pleased if people threw around some names of demos as well.
Not probably the first, but perhaps something that fits Trap's definition: D.Y.S.P.I.D.C.E. , hoping to clear things up :)
Over here in Finland a sort of rastersplit craze started after Academy (from Norway) released Noia (why am I not seeing this demo here? must upload, I guess ...), to which FIG responded with Paranoia , then the fellas in Beyond Force with numerous cool prods ...
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tlr
Registered: Sep 2003
Posts: 1787 |
I made a split sprite scroller in part 5 of Turbo Hack V1.
This is however an intentional cheat. To avoid the one cycle lateness glitch on the left side I actually change all the sprite colors.
IIRC Microtop did a similar split using $d021 around this time.
It would surprise me if this wasn't done earlier though.
Stable rasters as we know them today existed already in 1986.
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JCB
Account closed
Registered: Jun 2002
Posts: 241 |
I'm another for "back in the day raster split meant any raster interrupt splitting the screen somehow".
Pretty sure I did a vertical split in around 86 but also pretty sure I'd seen one quite a bit before that, possibly Crowther's game and probably some demos.
Pete |
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Danzig
Registered: Jun 2002
Posts: 440 |
yeah, the term "raster split" or "raster interrupt" was used when splitting the screen in different areas (like bitmap on top and char at the bottom).
the term "splitraster" was used for vertical splits.
today it makes me smile as its just swapped words :) |
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JCB
Account closed
Registered: Jun 2002
Posts: 241 |
It was (and still is to me) a vertical split.
The raster is as far as we were concerned a whole screen thing, I don't think I've seen any definition anywhere saying a raster is a single line, that's a scanline. That's why a raster split was any line splitting the screen into more than 1 section from the scanline you made the chnage. Then when we worked out about timing and cycles/scanline and got stable "vertical" ones happening the screen was now split the other way so we called them vertical splits..
That's my memory of it all anyway. :)
Just out of interest, over in Atari land they tend to call them "mid scanline changes"
Pete |
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Oswald
Registered: Apr 2002
Posts: 5086 |
I'm a late comer to the scene (96) and for me raster split was always the vertical split. All demos called them like that I've seen. This is the first time I hear that a simple mode change once pr frame should be called raster split. |
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JCB
Account closed
Registered: Jun 2002
Posts: 241 |
Quote: I'm a late comer to the scene (96) and for me raster split was always the vertical split. All demos called them like that I've seen. This is the first time I hear that a simple mode change once pr frame should be called raster split.
I think a lot of stuff like this also depends what country you're from..
Pete |
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