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2008-09-15
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133 lines
(1.02 version)
Silkcut - Atari Falcon port
Hello there, Atarians. Since you too have beefy machines these
days, it seems to be a good idea to have one of our demos ported over to
your platform. Now you have another benchmarking point for your demoing
efforts. All those megahertz and that much faster TT-RAM makes our
slow-as-molasses code run at a respectable pace without any further
hand-optimization. Hopefully this will serve as an inspiration for other
Falcon/060 developers to do some more demos soon.
I was hoping to port the demo myself, but alas, it always
seemed that other things got in the way. MiKRO/Mystic Bytes was also
interested in porting the demo... and since he is the kind of guy who
actually gets things done why not have him do all the dirty work? :)
Thanks dude!
- Kalms / TBL
---
So, yes, I'm that crazy guy. Insane guy to be honest, this was one
week long nightmare :) Btw guess what stuff did make the worst troubles?
SetPalette() function :)
Port is 1-to-1 copy of original Amiga version except the:
- Mountains scenes -- I disabled precalced stuff because it looked horrible
on our fast machine :)
- Greetings scene is b/w -- problems with 18bit Falcon palette and 24bit
source palette -- it didn't look very good
- Tunnel scene -- slowed down to 16 fps (it's the "native" framerate for
this effect)
- Audio -- 32kHz stereo 16bit track at 160 kbit instead of original one
Changes against 1.01 version:
- VGA 60 Hz support (you can still force VGA 50 Hz with "--vga50" command
line parameter)
- Greetings part is in color! (and have special 60 Hz version!)
- Tunnel part is better optimized for our fast machines
- killed some bugs in my port, most notably screen-related stuff (visually
it results in better framerate and correct fading)
Known bugs:
- one from original Amiga port: in the first 3D scene, there's a strange
polygon near the door sometimes
- tunnel scene is jerky sometimes (in both 50/60 Hz).. don't ask me for the
cause, I spent week on this and no result :/
Hardware requirements:
- Falcon/CT60@66MHz (probably also 50 MHz machines, I can't test;
in theory also Afterburner040/CT2)
- 48/4 MB RAM (better to have 14 MB ST RAM but it works on 4 MB ones, too)
- RGB/TV/VGA display
Credits:
- original demo -- TBL
- everything concerning conversion to gcc/gas and Atari -- me ;)
- MP2 replay -- NoCrew
- D2D patch -- ray/tSCc (D2D "hack" is better term ;)
And that's it. Enjoy.
MiKRO / MSB, miro.kropacek@gmail.com
Bratislava/Slovakia, 2008/09/09
==============================================================
Original infofile follows....
SILKCUT by The Black Lotus
An AGA/060 Amiga demo, released at Breakpoint 2004.
[held in Bingen, Germany during April 9-12]
Credits:
Graphics by Louie & Bohman & Tudor & Nichosen
Coding by Kalms & Rubberduck
Music by Blaizer
================================================
Hardware requirements:
AGA Amiga
680x0 CPU (68060 is strongly recommended)
15kHz PAL output (sorry, graphics cards are not supported)
... or the latest WinUAE.
================================================
Smashed filesystems, non-working IDE cables, broken powersupplies
and being at the wrong airport at a crucial moment was not enough to
stop us from finishing this demo. Joy! It's 40 minutes past the Amiga demo
deadline -- which actually is better than usual for us -- and the demo is
finally compiled and working. Louie has momentarily passed out from sleep
deprivation on the hotel bed, and in a few minutes we are on our way to
the main party site to deliver our demo.
And later tonight, there shall be some serious brawling in the
Amiga demo competition... :)
================================================
Thanks to the people at Breakpoint who helped us during our times
of despair and broken hardware, notably Bonky, Esau, Slemmy,
Booster & Kiero. We would have been deep down shit creek without their
helping hands!
Oh yeah, Emoon coded up some neat and crucial LightWave plugins
for us when we had managed to displace the originals. Cheers to him!
Kalms/TBL 2004.04.11 14:40
yes. I am getting too old for this crap. we all are. :)