Fraunhofer Diffraction

Controls

Press Edit Aperture to customise an aperture. Then you can start carving out your own aperture. Simply click and drag over the white panel to start making holes in it. You can change the brush size and whether it is erasing or filling with the buttons on the left.

You should also see a list of button on the left allowing you to choose pre-defined apertures. Note that you can clear your aperture by pressing reset from the buttons on the left.

Once you're done making your aperture press Observe Screen. The moment you press that button a Fast Fourier Transform will be performed (so it may lag depending on your hardware) and you'll be taken to the screen where you can see the generated diffraction pattern.

The Overview button takes you to a point overlooking the setup. The setup isn't really accurately sized and to be honest I only included this button to flex how the scene is 3D.