WARNING: This could make you dizzy depending on the settings and may not be good for photosensitive viewers. Try changing the turn adjustment and amplitude to see the effect. (Change both to 1 if it is too much.) You can also add a whirl effect on the rays + a fisheye effect on the stars for even more movement. Press T to see the tangent wave or press S to see the sine wave (the original display when green flag is clicked). Look inside to see the math at play.
I wanted to play with effects and math in this projects to see what kind of interesting visual I could create. I was inspired by a GIF I saw in ANDIPOTER's project "THE SALMON IS A LIE (Work in progres)" but I wanted to recreate something with movement using shapes and math, versus a GIF.