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- From: karlton@fudge.asd.sgi.com (Phil Karlton)
- Newsgroups: comp.sys.sgi
- Subject: Re: Need help getting GL over net to Macx
- Message-ID: <nm1f2eo@fido.asd.sgi.com>
- Date: 23 Jul 92 23:48:20 GMT
- References: <31491@adm.brl.mil> <gln.711904030@brutus>
- Sender: news@fido.asd.sgi.com (Usenet News Admin)
- Reply-To: karlton@sgi.com
- Organization: Silicon Graphics, ASD
- Lines: 56
-
-
- In article <gln.711904030@brutus>, gln@iti.org (Glen Niebur) writes:
-
- Granted SGI should have probably opened up the dgl protocol before
- now. Even IBM doesn't have dgl yet, even though they have gl. I
- think many companies will implement dgl and gl now that they have a
- chance, and then the X consortium will be compelled to follow.
-
- I'd like to clear up an apparent misconception. SGI is not widely licensing
- the current dgl protocol. That protocol is net generally useful; for
- one the code for the dgld (the daemon that interprets the protocol) is
- not licensed at all. Dgl does support remote rendering when the display
- machine is an SGI platform but that is as far as it goes.
-
- The OpenGL GLX protocol is generably licensable and works using the
- standard X extension mechanisms. The speicification and client side
- implementation is available with any level of OpenGL licensing.
-
- > They want you to WAIT until everyone (or I guess anyone) implements
- > the proposed GL extensions to X. Which is fine, whenever that
- > happens, and even then, what about the 300,000,000 or so X-Terms
- > which we users ALREADY own?
-
- I don't believe that there are 300,000,000 existing X terminals. However
- most X terminals can be used in a mode where the X server is downloaded
- to the terminal when it is powered on. (Some, admittedly, only work with
- proms in the X server. Of course, those can't even be upgraded to newer
- versions of the X server when they are made available from MIT.) If your
- terminal manufacturer has licensed OpenGL, then your downloaded server
- will implement the GLX extension.
-
- You could just get a the new X server from MIT and you would be on
- your way.
-
- Even if MIT were to get the university license ($500, I believe) for
- OpenGL, it would not be free to redistribute sources.
-
- In article <1992Jul23.172114.20820@CSD-NewsHost.Stanford.EDU>,
- philip@ziggy.stanford.edu (Philip Machanick) writes:
-
- One thing that would be really useful - being able to run programs
- like the zip editor and edge (though I imagine the easier solution
- would be to rewrite them for X).
-
- SGI sells a very nice debugger that uses X for its rendering.
-
- Also, though generating complex images in real time including
- animation may not be practical, it would be useful to be able to
- read showcase documentation on an X screen (even if the occasional
- picture may take a long time to render).
-
- There is a chance that Showcase may be ported to an X based toolkit.
- (No promises implied.) 3D images would probably not be available for
- viewing in the document if the server did not have the GLX extension.
-
- PK
-