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trident
Registered: May 2002
Posts: 91 |
the first examples of rasterbars on the c64 and the amiga
here's an idea: could we collectively try to find the first example of a rasterbar in a c64 demo?
this idea came from a now-closed forum thread that brought up an interesting question:
* did rasterbars originate on the amiga?
this hypothesis is based on the idea that the amiga's copper makes it easy to produce rasterbar-like effects.
i figured we might want to dig deeper into this question. my personal understanding was that rasterbars started on the c64, but this is only because i myself started on the c64 and haven't really been active on any other platform. so maybe i've been wrong all along, and rasterbars started on the amiga?
so let's try to find the earliest instances of rasterbar effects that we can find!
here's is what i did: i did an advanced search on csdb for c64 demos released between 1982 and end of 1985. this did not turn up much - it seems like there weren't that many c64 demos released this early.
there are plenty of c64 crack intros on csdb from this time though. but not that many that seems to show rasterbars. but here are a few that i found:
* Intro 6 (csdb release date 1985)
* Intro VII (csdb release date 1985)
* Intro VIII (csdb release date 1985)
* Danish Elite Intro (csdb release date 1985) <--- pretty lame rasterbar, but close enough
and then there are some early games that used rasterbar-like effects. the one i remember myself from back then is alleykat by andrew braybook, which was seems like it was released mid 1986. video here: https://www.youtube.com/watch?v=jV-E_gnzonw&ab_channel=MontyMol.. where we can see rasterbars behind the text in its intro.
the amiga was released in mid 1985, so those intros and games were released after the amiga hardware was available. but that doesn't necessarily mean that copper bars were done already.
does anyone have any more examples? and could anyone find examples of early amiga demos that display rasterbars/copperbars? |
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tlr
Registered: Sep 2003
Posts: 1762 |
Dropzone is pretty old. |
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trident
Registered: May 2002
Posts: 91 |
yeah, it is probably a good idea to define the concept rasterbar a little more stringently.
i'd suggest something along the lines of "a set of colors with increasing luminance, followed by decreasing luminance". with this definition, we would rule out the simple raster-style effects of the "inc $d020" kind.
and it certainly makes sense that this type of effect originated on the amiga, where i presume it is easy to change the luminance to create rasterbar-like effects. on the c64, this requires careful placement of the 16 colors, which is one more step of complexity. so it makes sense that someone started doing it on the amiga, because it was easy, then people who saw it copied it to the c64, but had to choose the colors wisely to do so.
@tlr: nice find with dropzone! it appears to be published in 1985. and here we see the raster color effect: https://youtu.be/F-L5pDlCOHg?si=a-uPYQutUEE7NLRJ&t=5 |
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Trurl
Registered: Mar 2002
Posts: 61 |
Pretty early example here too: https://gb64.com/game.php?id=6666 |
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tlr
Registered: Sep 2003
Posts: 1762 |
Might as well have originated from the various 8-bit Atari platforms that preceded the c64, or arcade games. I don’t think the Amiga was the major inspiration here. Not for me anyway. |
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Krill
Registered: Apr 2002
Posts: 2940 |
Quoting tlrMight as well have originated from the various 8-bit Atari platforms that preceded the c64, or arcade games. I don’t think the Amiga was the major inspiration here. Not for me anyway. Yes, i was just trying to find an early Atari 400 demo with rasterbars. Also pretty easy on that platform compared to C-64, and it precedes the C-64 by a few years. |
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tlr
Registered: Sep 2003
Posts: 1762 |
Quote: Quoting tlrMight as well have originated from the various 8-bit Atari platforms that preceded the c64, or arcade games. I don’t think the Amiga was the major inspiration here. Not for me anyway. Yes, i was just trying to find an early Atari 400 demo with rasterbars. Also pretty easy on that platform compared to C-64, and it precedes the C-64 by a few years.
Isn’t there a raster bars startup logo on the 2600? Never had one of those myself. |
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trident
Registered: May 2002
Posts: 91 |
did a quick look around at pouet.net for early examples of amiga demos with rasterbars, but didn't find much there either. the first amiga demos / intros seem to start showing up in 1986. here are the ones i found:
* https://www.pouet.net/prod.php?which=6553 (december 1986)
* https://www.pouet.net/prod.php?which=55456 (1986)
* https://www.pouet.net/prod.php?which=55451 (1986)
* https://www.pouet.net/prod.php?which=55449 (1986)
* https://www.pouet.net/prod.php?which=18938 (1986)
with this, i am definitely inclined to your position @tlr, that rasterbars most likely started not on the amiga, but elsewhere such as arcade games. it is pretty easy to find arcade games with rasterbar-like color effects. quick find here, super hang on by sega from 1987, with rasterbars in the sega logo and rasterbar-like colors in the main logo: https://youtu.be/VtP_3ENHFVY?si=0p0wgCm2wnEc1HTM |
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tlr
Registered: Sep 2003
Posts: 1762 |
There were a lot of stuff by the likes of Ratt/Crowther, e.g Ratt Demo IV, and Omega Man/TCS, e.g Omega Demo 3. These were an inspiration to me at the time. |
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mankeli
Registered: Oct 2010
Posts: 127 |
That Dropzone has definitely captured the Eugene Jarvis Aesthethic! Also the Robotron 2084 has pretty rasterbar-ey effects in it. |
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Mixer
Registered: Apr 2008
Posts: 443 |
1000: inc $d020
1003: jmp $1000
sys 4096
anyone? |
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