Seems like you could use a Camera pre-draw callback to put OpenGL into feedback mode, and a post-draw callback to return to render mode and retrieve the results. This would be awfully slow, not recommended for real time rendering. -Paul
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of oren david Sent: Monday, November 24, 2008 9:20 PM To: osg-users@lists.openscenegraph.org Subject: [osg-users] Cullind Data Hello, I need to know the vertex of all the polygon I'm about to draw on screen (after the culling has choosen the right ones), what is the right approach??
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