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- CHUNKY ROTATION DEMO, (c) 1994 RANULF DOSWELL.
-
- Well here it is. The much eagerly awaited chunky rotation demo...
-
- It seemed too much including both the executable file _and_ the source brush,
- and so as the executable compressed to a smaller file than the source (it's
- true!! ;) I have provided the utility to create data files...
-
- The utility dump (and source dump.c) was modified from tmapdemo to output a
- 12-bit colour value for each pixel in the source bitmap, and this is what
- you need for a picture.
-
- Make a 256x256 pixel brush, and type "dump <brushname> pic" and then assemble
- the source (RotatePicture.s) and marvel and the result.
-
- I fyou use this then please credit me somewhere. I was going to use this in
- an AGA megademo (and so not provide source to Internet) but I felt guitly, so
- I gave in. Please do not take the credit for this work.
-
- I am currently doing my A-level exams, and have no tru internet access of my
- own, so it is hard to contact me by e-mail, so try s-mail instead. I will be
- around comp.sys.amiga.programmer as from October 1994, so you can find me there!
-
- My address is:
- Ranulf Doswell, 1 Ayr Street, Lancaster, Lancashire, LA1 3DT, England
-
- If you _must_ use e-mail then write to my friend at csuoj@csv.warwick.ac.uk,
- but please only write if absolutely required.
-
- I am currently working on a Doom-type game (straight after my exams) so watch
- out for this in late 1994. I have pretty much worked out in my head some ideas
- to virtually eliminate all multiplications during screen update, so it should
- be fast. Please provide any feedback with this idea, and also for this demo.
-
- If you have a machine other than a base (unexpanded) 1200 (like me:( then
- please tell me what screen-sizes you can run at and still get 25fps (for the
- doom conversion...)
-
- Idea was originally based upon chopper code (COPASM.A) by Patrick van Logchem
- which reminded me of an idea I had once, but forgot all about until now...
-
- I have tried fiddling with HTOTAL as suggested on c.s.a.p, but I have found
- that it doesn't work with TV's (like mine...sobsob) and so I haven't used that
- speedup. Please don't use it - it'll alienate your target audience...
-