The final Swobbler (1989)
The final swobbler, which is a horizontal picture distorter, had been the result of a Troll internal competition.
In the end Sunnyboy and Nexus 6 had the better code.
Their routines where fast enough to draw 200 lines (with music), while mine could
only render 197 lines (without music) in one vbl. As some kind of punishment, I had to
draw the graphics. Because I never painted anything on the ST before, I used an
Cover for "inspiration" and converted it to the ST pixel by
robot was one of my very first computer graphics, and I think it's not
very well done but we used it anyway.
We don't cheat in any way in this demo and with generated code or a
specially designed picture (the picture can be replaced by any other 4
bitplane 320*200 pixel graphic) we could have drawn more lines, but we
needed only 200 lines to fill an Atari lo-res screen.
As usual everything had been done quick and dirty and so it runs on Saint 0.99 if you switch to 1 MB
only (you have to because it only works with exactly 1 MB). If you want to
look at it, just download this disk-image
with the complete Source (GFA-Assembler) and the executable program. If you want
to replace the disted picture, just copy another "BLOBL.PI1" to
the root directory.
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© 1989 X-Troll