Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!mips!sgi!shinobu!odin!ramoth.esd.sgi.com!msc
From: msc@ramoth.esd.sgi.com (Mark Callow)
Newsgroups: comp.sys.sgi
Subject: Re: Motif & GL
Message-ID: <1990Dec21.223210.17311@odin.corp.sgi.com>
Date: 21 Dec 90 22:32:10 GMT
References: <29333@shamash.cdc.com>
Sender: news@odin.corp.sgi.com (Net News)
Reply-To: msc@sgi.com
Organization: Silicon Graphics Inc., Entry Systems Division
Lines: 32

In article <29333@shamash.cdc.com>, awm@shamash.cdc.com (Allan Magnuson) writes:
|> interface in GL.  It doesn't look great and isn't portable, but it is fast
|> because we can put it in the overdraw planes to avoid a REDRAW token being
|> placed in the window with the users geometry.
|> .
|> .
|> .
|> Now the problem: We would very much like an interface in something that is
|> X based, like MOTIF.  We know that right now, MOTIF and GL windows cannot
|> co-exist, but in the future they will be allowed to.  This is great, our
|> development of a nice, portable, interface will probably take until the
|> 4.0 release comes out.  But we can't sell the idea to anyone unless we can
|> solve this REDRAW problem.  We can't have an interface that causes redrawing
|> of all the users geometry. We thought about saving the bit image off the

The X server in release 4.0 will support an overlay visual so you will be
able to put those motif thingies in the overlay planes. However using the
overlay planes limits your color choices.

Also in 4.0 I think a GL application will finally be able to find the bounds
of the damaged region when it receives a REDRAW.  This let's your app. just
repaint the piece that was covered by the whatever UI thingy popped up.

Incidentally I recommend you not use the OSF/Motif toolkit.  It's a pig.
Currently the minimum application size in 1 megabyte and it takes 5 seconds
for the app. to start up.  We will do our best to improve those figures
before 4.0 is released but it's largely out of our control.

-- 
From the TARDIS of Mark Callow
msc@ramoth.sgi.com, ...{ames,decwrl}!sgi!msc
"Spirits of genius are always opposed by mediocre minds" - Albert Einstein