Default value is taken from the 'Default Orientation' in Player Settings.
As an example, if we take 480x320 resolution on iPhone, horizontal
orientation is treated as 480x320 resolution and vertical orientation
as 320x480.Note: logical orientation affects not only screen orientation, but
also touch coordinates. You should expect drastic changes in the touch
positions after changing logical orientation, since touch positions
will be rotated clockwise or counter-clockwise to match screen
coordinates.Currently screen orientation is only relevant on mobile platforms.
If the value is set to ScreenOrientation.AutoRotate then the screen will select from any of the options (enabled by autoRotateToPortrait, etc) automatically as the device orientation changes.See Also:ScreenOrientation, ScreenOrientation.AutoRotate.