Comment 42 for bug 1025535

>>Daniel

If that is so, then you're looking for something that goes like this:
(excuse the not-even-pseudocode, i haven't written a program since college)

[compiz occlusion detection]
if windowstate == full-screen; occlusion = full-screen

[unity code]
if occlusion == full-screen, paint-shell(no)

Where Unity doesn't get that occlusion is fullscreen when the cube is transparent, or knows that occlusion is fullscreen but paints the shell anyway because the cube is transparent.

Why does cube transparency bring out this bug?

Is it possible that cube transparency somehow breaks occlusion?