Classification: UNCLASSIFIED Caveats: NONE
Paul, 'gluUnProject' is a world space inverse projection If I understand right, the depth buffer mapping is vendor specific and is traditionally a logarithmic mapping. I'm not aware of a generic algorithm to do the inverse projection for the depth buffer. Try the 'Real-Time Rendering' text and/or their website: http://www.realtimerendering.com/ Bob -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Martz Sent: Thursday, November 08, 2007 8:12 AM To: 'OpenSceneGraph Users' Subject: Re: [osg-users] Depth Buffer to Distance Conversion Download the GLU source code from opengl.org and look at how gluUnProject() works. -Paul ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, November 08, 2007 6:16 AM To: [email protected] Subject: [osg-users] Depth Buffer to Distance Conversion Hi, Can someone provide me with the algorithm to convert the value of the depth buffer pixels to ranges? Thanks This is an e-mail from General Dynamics Land Systems. It is for the intended recipient only and may contain confidential and privileged information. No one else may read, print, store, copy, forward or act in reliance on it or its attachments. If you are not the intended recipient, please return this message to the sender and delete the message and any attachments from your computer. Your cooperation is appreciated. Classification: UNCLASSIFIED Caveats: NONE _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
