-Lunch box projects-

SOME OF MY RECENT ANIMATIONS

Since I bring in lunch, I sometimes take a break of thinking and do some other stuff, like computer animations. Most of them took less than twenty minutes to make (hey, it should be fun, and it is not my work).
Take whatever you feel like having from this page.
The single frames are constructed with whatever stuff is handy: standard C, perl scripts that generate fig (xfig) output. (Thanks to the xfig team.) Some things I gave up on: Fortran (no binary read-write) which is a pity, because one can keep full control over memory management. Direct perl, for large-picture streams, without memory storage: slow, slow, slow. And a number of odd tries. The actual compilation is with Eddie's gifsicle, which I started to use after whirlgif. Praise to Ed.
Of course, putting many animated gif's on one page will make your processor work. But that's fun too, perversely.

for a good friend's birthday, to cheer her up, bright colours, notice the timing of smiley. Flat colours compress much better in gif, since the dictionary remains small.



Here three animated gifs for a presentation on light, colour, and graphics, on my laptop, which will probably never happen. The light (ray) stuff, is after some posting on the web, that it was "very difficult" and computationally intensive. So I did it proudly in 30 minutes, and the actual ray-tracing calculations takes 10 seconds. I kept all arithmetic integer, because pentiums are such lousy floating-point lovers. (After one worked on a DEC-alpha.) But actually it makes not much difference (what is 10 seconds?).

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Next page with animations

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