Hi, you are outputting the position as color, that's why you see black (because these have negative coordinate values) and the three values. Just set an arbitrary fixed color value in the frag-shader to see anything. But if you need to see colors, then you need to define your own vertex attribute for passing in colors.
But my advice is that you should first get used to writing very basic shaders in opengl 3.0 core profile mode. OpenGL ES 2.0 is similar in the sense they do not support fixed function pipeline. You need to learn the basics first. -deniz ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=57108#57108 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
