From where do I get a SYNC signal?

Article View: comp.sys.sgi.hardware

Article #72

Back to comp.sys.sgi.hardware Previous Next

#72

From: Dario Ringach, x3941
Date: Thu, 07 Jan 1993 17:57

10 lines
1003 bytes

I'd like to synchronize the screen refresh with external equipment for
a psychophysical experiment...  I only want a signal coincident with
the FIRST vertical SYNC of the monitor AFTER I call swapbuffers() (i.e.
exactly when the buffers are swapped).  Is there a way to do this?
Thank you!

---
Dario Ringach                           office: (212) 998-3941
Center for Neural Science               home:   (212) 727-9346
New York University                     e-mail: dario@cns.nyu.edu

Technical Details

Message-ID: <C0HwKH.62D@cmcl2.nyu.edu>

Path:

arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!bogus.sura.net!howland.reston.ans.net!news.ans.net!cmcl2!liu!dario

Show Full Headers

Complete Article Headers

Newsgroups: comp.sys.sgi.hardware
Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!bogus.sura.net!howland.reston.ans.net!news.ans.net!cmcl2!liu!dario
From: dario@cns.nyu.edu (Dario Ringach, x3941)
Subject: From where do I get a SYNC signal?
Message-ID: <C0HwKH.62D@cmcl2.nyu.edu>
Sender: notes@cmcl2.nyu.edu (Notes Person)
Nntp-Posting-Host: liu.cns.nyu.edu
Reply-To: dario@cns.nyu.edu
Organization: Center for Neural Science, New York University.
Date: Thu, 7 Jan 1993 17:57:52 GMT
Lines: 11