Path: utzoo!attcan!uunet!decwrl!ucbvax!MCIRPS2.MED.NYU.EDU!karron
From: karron@MCIRPS2.MED.NYU.EDU
Newsgroups: comp.sys.sgi
Subject: Re:  gl question - editing large objects
Message-ID: <9007290220.AA17536@mcirps2.med.nyu.edu>
Date: 29 Jul 90 00:23:55 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: karron%CMCL2.NYU.EDU@cunyvm.cuny.edu
Organization: The Internet
Lines: 24
X-Unparsable-Date: Sat, 28 Jul 90 19:20:53 DSD

Thanks for your considered reply.

>however, the editing performance of objects is poorer than ever, as
>a result of some arcane interactions between shared libraries and
>code caches.  thus (for now) rule one:
>
>    if performance is an issue, use GL objects only for data that
>    never change.
>

What do you mean, exactly, by "data that never change"s ?

What about a fixed geometry object that will have different reflectance
properties, or a moving light source ?


dan.
+-----------------------------------------------------------------------------+
| karron@nyu.edu                          Dan Karron                          |
| . . . . . . . . . . . . . .             New York University Medical Center  |
| 560 First Avenue           \ \    Pager <1> (212) 397 9330                  |
| New York, New York 10016    \**\        <2> 10896   <3> <your-number-here>  |
| (212) 340 5210               \**\__________________________________________ |
+-----------------------------------------------------------------------------+