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- Path: sparky!uunet!cs.utexas.edu!uwm.edu!ogicse!reed!henson!news.u.washington.edu!news
- From: wjs@blorf.cpac.washington.edu (William Shipley)
- Newsgroups: comp.sys.next.programmer
- Subject: Re: Faster draw (PSL2 forms are SLOW)
- Message-ID: <1992Aug18.020134.8498@u.washington.edu>
- Date: 18 Aug 92 02:01:34 GMT
- Article-I.D.: u.1992Aug18.020134.8498
- References: <1992Aug14.220646.5882@u.washington.edu>
- Sender: news@u.washington.edu (USENET News System)
- Organization: University of Washington
- Lines: 20
-
- Lloyd P. Goldwasser writes:
- > Are there any good NeXT examples floating around of the use of
- > Postscript forms (PS Reference Manual, 2nd ed., p. 172) for
- > speeding up drawing? Does anyone have any experience with the
- > relative merits of forms vs. user defined paths?
- > [...]I am a duck.
-
- When I tested PR2 it appeared that PostScript Level 2 forms are currently no
- faster than simply redrawing your image multiple times with a clip path.
-
- That is to say, they don't appear to be cached. They sure oughta be, but they
- aren't. Bummer. Forms would be a great way to encode multi-color sprites, if
- they worked.
-
- This may have changed with the final release of 3.0, but I kinda doubt it.
-
- -William Shipley
- The Omni Group
-
- PS: Patterns, on the other hand, are cached. They're tres fast.
-