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Text File | 1987-06-30 | 1.8 KB | 44 lines | [TEXT/MACA] |
- Globe 1.0 of 6/3/87
- -------------------
-
-
- Globe is the classic spinning globe demo seen on Sun workstations.
- It works on all Macintoshes with at least 512K of memory though it
- looks best on a Mac II with 8 bits/pixel color. The program consists
- of the application Globe along with various data files containing
- different sizes of the globe bitmaps. The sizes range from 32 x 32 to
- 256 x 256. Double clicking on one of the data files will bring up
- a spinning globe in the desired size. If you open the application
- without selecting a data file, it will try to open a file titled
- 'GlobeFrames'. Globe uses lots of memory; minimum around 300K and
- much more if you are using a Mac II in one of the multibit screen modes.
- The largest globe (256 x 256) uses 2MB! when run at 8 bits/pixel.
-
- I wrote a Globe for the Mac as an exercise in learning Color QuickDraw.
- The goal was to write a decent demo completely in Pascal using
- only Apple documented and approved techniques. A bit of assembler
- was neccessitated by the need to do VBL synchronization on the
- Macintosh II. There is also a bit of experimentation with Juggler.
- Globe's heavy CPU usage makes it useful for investigating
- QuickDraw (CopyBits) performance under different conditions such as
- window placement and clipping. The sadistic will no doubt change the
- depth of the screen at runtime to watch QuickDraw sweat.
-
- Comments and bug reports are welcomed. Globe is free so if you pass it
- on, please try to include this text. If you didn't get the source code
- (MPW 2.0b1 Pascal and Assembler), I will send it to you if you mail
- me a disk (maybe with some neat pd/shareware) along with $5.
-
- Enjoy,
-
- Paul Mercer :)
-
- Delphi: LOGICHACK
- AppleLink: D0131
- MCI: SOL
-
- 681 E. Seneca Tpk., #A4
- Syracuse, NY 13205
- Phone: (315) 492-3348
-
-