Hi Chris,
Thanks for the quick reply and the lead. I'm still fumbling around with that example and I think I've found an issue with it. It appears to be sensitive to the camera position (ie not the correct projection solution). This little bit in the shader makes me feel that it's suspect (+vec2(0.5,0.5)): " vec4 color = texture2D(projectionMap,dividedCoord.st+vec2(0.5,0.5) );" Do embedded images come across in these emails: Startup: [cid:image001.png@01CC7D27.0D484B60] Moving in slide to the right (projection moves to the far right): [cid:image002.png@01CC7D27.5588D890] -B -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Chris 'Xenon' Hanson Sent: Tuesday, September 27, 2011 1:44 PM To: OpenSceneGraph Users Subject: Re: [osg-users] GLSL shaders and projective texturing On 9/27/2011 2:16 PM, Brad Colbert wrote: > Hi folks, > I'm looking for a complete example showing projective texturing with GLSL > shaders in OSG. I'm simply trying to implement a spotlight just like the > osgspotlight example. What I've found doesn't quite paint the whole picture > for me. Anything would be helpful. This one seemed fairly complete. http://www.jotschi.de/?p=378 Ping me if you need help on the project. -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Digital Imaging. OpenGL. Scene Graphs. GIS. GPS. Training. Consulting. Contracting. "There is no Truth. There is only Perception. To Perceive is to Exist." - Xen _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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