Every ridge, river and forest is generated from equations you can read. Fly it, drive it, walk it.
A two-kilometre island raised from fractal noise, carved by a hydraulic-erosion pass, then handed over with the mathematics left visible. Press F in the field and the ground rebuilds itself from any z = f(x, y) you can type.
Your location is a vector. The HUD keeps P = [x, y, z] running as you move — coordinates stop being abstract the moment they are yours.
The directional derivative Duf rides along with every step, so a hill is never just a hill — it is a gradient you can feel.
Swap the island for sin(x)cos(y) and watch a textbook surface become weather-worn ground you can land a helicopter on.
It has been rendering live behind this page since you arrived. Go down and touch the ground.
Click to enter the field