Hi,
> If you only need the movement towards/away from you, you can use the > previous frames depth and perform difference computation based on the > difference of the linear depth. Im not exactly sure what you mean here. Are you talking about rendering the depth of each frame to a texture and comparing the values with the next frame to compute the delta? If so, wouldnt that be a pixel based approach again suffering the same problems as I mentioned earlier as a response to mp3butcher? > I'd simply pass the view matrix inverse (pre frame) and calculate the > modelmatrix via inverse_view * model_view_matrix. That works, but only gives me the current modelMatrix. I need the modelMatrix of the previos frame though. Because objects can move in my scene, I can not calculate the old vertex position by simply using the current modelMatrix with the old viewMatrix. Thank you! Cheers, Philipp ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=67951#67951 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org