https://bugs.freedesktop.org/show_bug.cgi?id=37652
--- Comment #7 from Sven-Hendrik Haase sh@lutzhaase.com 2011-05-28 03:01:26 PDT --- A further, smaller, more conclusive trace in a less complex scene: http://ompldr.org/vOHRyMQ
The planet is supposed to cast a shadow towards the camera.
Retrace call 19396 and notice how the shadow texture in texture 0 exist but at the glDrawElements isn't actually drawn to the framebuffer.