Well, the problem is, that I need the surrounding heights. It is a terrain visualisation project and i need to calculate things like openness (some Ambient Occlusion related thing) or terrain roughness, for which I need for example a 5x5 kernel around my pixel, so a heightmap lookup would be the easiest..
It seams that there is no way to extract that information just form the vertex data (because the vertex shader only processes one vertex at a time). ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=43894#43894 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
