[osg-users] Opengl extensions

Gordon Tomlinson gordon at gordon-tomlinson.com
Mon Sep 22 16:15:42 PDT 2008

Yes these will work


But you can only do OpenGL calls in a  process that has a valid Opengl
context in the case of OSG  the is the draw thread


We do ours in the first call to draw in a draw callback, 


Search the archives for more info if you require more in-depth answer



Gordon Tomlinson 

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From: osg-users-bounces at lists.openscenegraph.org
[mailto:osg-users-bounces at lists.openscenegraph.org] On Behalf Of Ben Axelrod
Sent: Monday, September 22, 2008 6:28 PM
To: OpenSceneGraph Users
Subject: [osg-users] openGL extensions


I would like to detect if the user has the appropriate openGL extensions in
order to do shadowing.  However, when I do:





They return null.  How can I get a list of the available extensions?  Is
there an easy way to get this info from OSG?


Also, how do I know which extensions I need for the different shadow




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