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- Newsgroups: comp.sys.next.programmer
- Path: sparky!uunet!snorkelwacker.mit.edu!ai-lab!cs.tu-berlin.de!marcel
- From: marcel@opal.cs.tu-berlin.de (Marcel Weiher)
- Subject: Re: Look Up Tables On NeXT
- Message-ID: <1992Nov6.173756.10070@cs.tu-berlin.de>
- Sender: news@cs.tu-berlin.de
- Organization: Techn. University of Berlin, Germany
- References: <1992Nov3.195318.2902@ife.fdn.org> <1992Nov6.040532.490@cubetech.com>
- Date: Fri, 6 Nov 1992 17:37:56 GMT
- Lines: 24
-
- andrew@cubetech.com (Andrew Loewenstern) writes:
-
- >In article <1992Nov3.195318.2902@ife.fdn.org> jj@ife.fdn.org writes:
- >>I am developping an image processing library which base is the use of
- >>look up tables to change the dynamic of the image quickly. It does
- >>not seem to have any LUT on the NeXT, has any one solve this problem
- >>earlier, how can I access the graphic memory directly to speed up the
- >>process of my "manual" LUT ??
- >
- >There are no CLUT's on the NeXT because it has Display PostScript.
- >But, if you are writing something where user adjusts a parameter and
- >you want to instantly display the effect in a "preview" before applying
- >the transformation to the real image, then check out
- >setframebuffertransfer.
-
- Why not go for settransfer/setcolortransfer, as these are STANDARD
- PostScript operators. (Why does everybody always suggest the nastiest
- sort of hack first?? )
-
- Marcel
-
- PS.: Andrew, is your mail still broken? I haven't been able to
- get through.
-
-