https://bugs.freedesktop.org/show_bug.cgi?id=34495
--- Comment #40 from Pierre-Eric Pelloux-Prayer pelloux@gmail.com 2011-07-04 14:08:09 PDT --- Created an attachment (id=48749) View: https://bugs.freedesktop.org/attachment.cgi?id=48749 Review: https://bugs.freedesktop.org/review?bug=34495&attachment=48749
workaround for issue in comment #38 #39
Here's a small patch that seems to workaround the manipulator issue.
I still do not yet understand the exact problem though (it seems z-buffer is not written to but glQueries count is > 0... weird). This will need some further investigation.