I use Blender 2.79 (outdated but my ancient graphics card doesn't support 2.8 so I use it).
I am making a title screen for a game I'm working on. In the screen, there is a 3D background and 2D buttons to play the game.
I want the background to be rendered with perspective but I want the buttons to be rendered in orthographic.
I have tried using the "Add Overlay Scene" actuator but then the buttons are not clickable.
How do I fix it?