Steve Baker (steve++at++mred.bgm.link.com)
Fri, 20 Jun 97 07:50:49 -0500
It depends on which hardware you are using. On all of the more recent
SGI machines, IrisGL is only emulated on top of OpenGL - so it's hard
to imagine how it could be more efficient.
If you have an RE2 though, it's my understanding the both IrisGL and OpenGL
are 'native' implementations, so in theory, there isn't much to choose
between them. However, in my experience, the OpenGL on RE2 is somewhat
flakey - and certainly not as well optimised as IrisGL.
On very ancient machines like VGXT's, there is no native OpenGL - I'm not
sure - but there was talk of an emulation of OpenGL on top of IrisGL.
IMHO: If you are doing anything new, you probably ought to stick with
OpenGL since IrisGL support is going away *soon*.
Steve Baker 817-619-1361 (Vox-Lab)
Hughes Training Inc. 817-619-8776 (Vox-Office/Vox-Mail)
2200 Arlington Downs Road 817-619-4028 (Fax)
Arlington, Texas. TX 76005-6171 Steve++at++MrEd.bgm.link.com (eMail)
http://www.hti.com (external) http://MrEd.bgm.link.com/staff/steve (intranet)
http://web2.airmail.net/sjbaker1 (external)
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