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- Short: Agatunnel - hypnotic color cycling effects
- Author: ex-grahn@mdstud.chalmers.se (Jörgen Grahn)
- Uploader: ex-grahn@mdstud.chalmers.se
- Type: gfx/aga
-
- Many years ago, when a friend of mine had convinced me
- to buy a used Amiga, I got my hands on a small
- program named Tunnel. It was originally a demo program
- for some Modula-2 system; thus source code in Modula-2
- was included. The program was so cool, my brother and I
- used to turn off the light in the room and watch the
- psychedelic colours flickering by.
-
- The program didn't work on my new AGA Amiga - there was
- no synchronization and the colours shift much too fast.
- I wrote this quick hack to produce a similar effect,
- but enhanced to make use of all the 24 color bits of AGA.
-
- The 'tunnel' is a very simple effect, but it is cheaper
- than hallucinogen drugs - unless there are Psilocybin
- mushrooms growing where you live anyway ;-)
-
- On the other hand, watching ambient videos on MTV late at night
- is rather cheap too...
-
- As it is, AGATunnel will open a screen in the same resolution
- as the Workbench and make some simple colour cycling effects,
- giving the impression of a moving multi-color tunnel.
- Stop the program by feeding it a CONTROL-C signal
- (with the C:Break command for example).
-
- This is a quick hack, but it's fun to watch. Some caveats:
-
- It is 3.0-only, CLI/Shell-only and AGA-only
-
- The number of bitplanes and speed of the color cycling
- is hard-coded. If you want to change it, you have to
- recompile the program.
-
- The speed is hard-coded with respect to my own
- machine, an A4000/030. The effects _may_ look a
- bit strange in some screenmodes on A1200s and A4000s.
- I don't know.
-
- The program looks ugly while it draws the initial
- tunnel. Once again, this isn't high-quality software.
-
- The algorithms for generating the color sequence
- could be enhanced, giving a much cooler effect.
-
- This archive is in the Public Domain. Do what you want with it.
-
- Jörgen Grahn
- Wetterlinsgatan 13E
- S-521 34 Falköping
- SWEDEN
-
-
- ============================= Archive contents =============================
-
- Original Packed Ratio Date Time Name
- -------- ------- ----- --------- -------- -------------
- 549 203 63.0% 31-Dec-93 18:07:50 AGATunnel/Makefile
- 108 83 23.1% 30-Dec-93 19:37:52 AGATunnel/SCOPTIONS
- 25604 12294 51.9% 08-Jan-94 10:29:00 AGATunnel/agatunnel
- 3891 1560 59.9% 08-Jan-94 10:28:48 AGATunnel/agatunnel.c
- 1987 1101 44.5% 07-Sep-94 19:29:32 AGATunnel/agatunnel.readme
- -------- ------- ----- --------- --------
- 32139 15241 52.5% 12-Sep-94 16:08:40 5 files
-