On Tue, Sep 10, 2013 at 1:46 PM, Ian Romanick <idr at freedesktop.org> wrote: > This is an OpenGL ES 1.x extension that Mesa has advertised for quite > some time. However, it appears that there is *no* code in Mesa to back > that up! bfa66bd6 added it the extension string, as far as I can tell, in Sept 2009.