The old Mac launcher doesn’t work on Yosemite, add a tiny
Qt-based launcher inside the main process (no need to fork /
exec) which runs before the OSG window is created.
Will be merged for 3.4, hopefully with no impact on other
platforms.
- Current 3D clouds rendering does not use the alpha buffer,
so don't request one at launch, since it consumes valuable GPU memory.
- Remove any references to alpha testing or alpha func in the renderer setup.
multi-headed Gnome based linux systems, this provides an extra hint that we
really wish to open up our full screen window spanning all physical displays.
This works around a kink in the gnome window manager where it tries to "lie"
to applications about the full screen size assuming most applications don't
wish their windows to span multiple physical displays.
