The
third and last part of the not-so-famous series of Attack of Stubidos
was released at Assembly held in Helsinki in august 1994. All demo coding in
this demo was done by Gremlin. The demo won the Assembly 1994 demo
competition.
The
introduction starts as some text declares the producers and the demo
name. Then there is a routine that is a bit like the part in poor including
electrical potential fields except that this version is much more real time
and is only ment to be a design effect with text changing on the field.
After a while when all the text is shown the demo continues by loading the
next part.
In
the next part there is a big text naming the effect that is about to be
shown. Then the effect starts. Background changes into blue and a filled
vectorcity zooms in and rotates around y-axis. After a while of rotating
still it starts to zoom and move around the screen. The city itself is
really like a shadow of a city and is updated every second frame. On the
background there is a picture of a planet or something like that giving
some design touch (hopefully it worked). After a while of showing the
routine (a while which turned out to be a far to long while) the demo goes
on and starts loading the next part.
The
third part features sierpinski triangles. Sierpinski triangles are
ofcourse like pascal triangles turned into graphics so that when in a
pascal triangle there is an odd number a dot is drawn and otherwise it
isn't. Triangles are rotated around all three axises and zoomed in and out.
First there is a normal single triangle and the an object with two triangles.
Then a tetrahedron shows up with hidden lines removal included.
The last thing in the effect is a more complicated object including an
object with four triangles. The music in the part was composed by Skyline
Technics of Horizon. After all the objects are shown the demo continues
by loading the fourth part.
The
following part introduces itself with some text telling what the next
effect will be and then it moves on to the effect which is a mandelbrot
zoomer that zooms mandelbrot fractals very deep. The routine itself
obviously cannot calculate all the frames on C-64 real time so every 32th
frame is precalculated and packed with a packerroutine made especially for
this demo part. Rest of the frames are made with a normal zoomer that
zooms until the precalculated frame is double the size of the original and
the the precalculated frame switches to next precalculated frame and start
zooming. There are two different fractals in the zoom. After zooming both
the fractals the demo continues by loading the last part. The music in
the part was composed by someone in Camelot.
The
last part is a pure real time filled vector routine on C-64. The line
routines, filler and 3d-calculator are pushed to the limit. Some of the
routines use some undocumented commands too so the part doesn't work
on all C-64:s. The features supported are hidden vectors (naturally),
glenz vectors (transparent surfaces), blenk vectors (shaded to the respect
of the z-axis), changing objects and stencil fill. There are pretty many
objects just to show that everything is in real time and could not be
precalculated. Some of the objects have a lot of surfaces and that's just
because the same objects were seen on Amiga 500 and the purpose was to
show that the old C-64 can do the same (well the speed is not the same at
all). All traditional regular polyhedrons including dodekahedron and
ikosahedron are presented. There is also a logo in the upper part of the
screen which happens to be the same logo as in the final part os Attack
of Stubidos part one. So it is drawn by Napalm. The classic music was
composed by Prosonix.
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