OpenGL features deprecated in 3.0 will still work in 3.0, but: * They might not be the optimal mechanism for what you are trying to accomplish -- better techniques exist. That's why it's deprecated; and... * Deprecated features might not work correctly when combined with new functionality; and finally... * Deprecated features might be removed in a future rev of OpenGL. At that point, the features might -- or might not -- still be available as an extension. Paul Martz Skew Matrix Software LLC http://www.skew-matrix.com <http://www.skew-matrix.com/> +1 303 859 9466
_____ From: [email protected] [mailto:[email protected]] On Behalf Of alessandro terenzi Sent: Wednesday, January 28, 2009 4:37 AM To: OpenSceneGraph Users Subject: Re: [osg-users] Rendering double-sided surfaces. My second try: I got/created a StateSet from my model root and then, as suggested by Frank, I did: osg::ref_ptr< osg::LightModel > pLightModel = new osg::LightModel(); pLightModel->setTwoSided( true ); pState->setAttributeAndModes( pLightModel.get(), osg::StateAttribute::ON ); Doing this solved the problem. I did not added also the material setting as in the Frank's example because my models already have materials and textures applied. Paul said that this way to solve the problem is deprecated in OpenGL 3.0, but will it keep working anyway? Thank you very much for helping. Alessandro
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