Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!ucbvax!SLOWHAND.WES.ARMY.MIL!stephens
From: stephens@SLOWHAND.WES.ARMY.MIL
Newsgroups: comp.sys.sgi
Subject: Batch graphics processing
Message-ID: <9106182040.AA09980@slowhand.wes.army.mil>
Date: 18 Jun 91 20:40:59 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Distribution: world
Organization: The Internet
Lines: 29



this is probably a dumb question but here goes.....

i have a home-brewed gl code that displays an animation sequence
of transient data. to produce an video tape of these frames i presently
	i) draw an image
	ii) do a scrsave to get the rgb image file
	iii) return to (i) until seqeunce is finished.
	iv) convert the rgb to a yuv format
	v) ship the yuv's to an abekas a60
	vi) then make a tape (BetaCam ---> vhs)

this is very time comsuming (a small nuisance). the real problem is that
this scheme precludes me from doing anything else on the graphics console,
which seems to be a real waste of resources. some of these things presently
occupies the graphics console for hours.

my question is this: is there a way to get the image without actually
putting it on the screen, i.e., to 'batch' process the graphic
rendering? i know some packages do this batch processing (wavefront's
advanced visualizer). so i know it can be done.

any help would be greatly appreciated.

thanks,

mike (stephens@slowhand.wes.army.mil)