Hi, For the moment the transformfeedback example given is compatible with opengl 3.3 spec...
If i understand correctly ARB/transform_feedback2/3.txt , for opengl>=4 it's not the correct way to handle TF as classic VBO rely on an array_buffer (GLBufferObject), and so on it disallows the use glDrawTransformFeedBack (because this func requires explicitly a GL_TRANSFORM_FEEDBACK). (Correct me if i'm wrong) Consequently, It forces ones to use GPU query (overhead) when the TF have variable size... I would like to improve that providing both TransformFeedBackBufferObject and GLTransformFeedbackBufferObject. Do you think this is the correct way? Thank you! Cheers, Julien ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62367#62367 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
