http://www.uncontrol.com/ — a flash applet which provides a good
collection of nature-imitating mathematical eye candy. Number 16 is
beautiful.
I used to write graphics demos on the C-64, which used a lot of this kind
of stuff (although a hell of a lot simpler for obvious reasons). It
occurs to me that Flash makes writing demos a lot easier; it provides a
decent language (scripting as opposed to 6502 assembly), it gives you a
good set of drawing tools (anti-aliasing, alpha blending, and 24-bit
colour), the hardware no longer limits what you can do in 2-D graphics,
and you can even buy software which takes care of the text effects like
zooms, scrolling, bouncing etc. In other words, all the cool tricks are
done for you ;)
I wonder what demo writers are doing nowadays, as a result? One side
seems to be what these guys have done — actually go for really
interesting, good-looking effects, rather than just the “how did they do
that” factor. I would imagine the other side of the demo “bleeding
edge” is doing a hell of a lot of 3-D stuff. (By hand. In assembler.
;)