I'd use a pixel shader for the effects. Pass in the texture that represents the snow overlay and have the shader scale the alpha up and down as it accumulates.
Rain would be handled the same way but you'd have to come up with a way to make the water droplets move around on the screen. That should be possible in the shader as well. Thank you! Cheers, Steven ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34455#34455 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
