Motoko Hihara Grid
This design by Hihara really struck me with it's simplicity. In this grid, the up angle is rotated by the output of f(x,y). So keep it integer valued on the integers for a nice grid. You can zoom in and out or pan to change the grid. It starts as the first quadrant.
Play in GeoGebra.
One more trying to get a random effect...
How would you with a function on R^2?

















