Is there a way to force a 3:4 aspect ratio?

I have an iOS game that I am porting to Mac OSX, but the assets and design of my game only suits portrait mode.

Is there anyway I can force an aspect ratio of 3:4 in the Standalone player and still allow the user to resize the window or select only from resolutions that are 3:4 (not 4:3)?

Thanks

Let the user choose any screen size, or window size, that suits them. Then use Camera.rect to make Unity render to your 3:4 space.

The complexity here is I am using three different cameras and some 3rd party components.

  • GUI Camera for NGUI
  • Background Camera
  • Main Camera