Infinite terrain flyover

1 test · 1 finished runs (1 agent, 0 raw one-shot) · 1 live demo

The prompt

Build a Three.js endless terrain flyover: the landscape is generated in chunks around the camera from layered noise (fBm plus ridged noise for mountains) computed in your own code or shaders, with level of detail that lowers far chunks, seamless edges between chunks, biome colouring by height and slope (beach, grass, forest, rock, snow), animated water, distance fog and a moving sun with a day to night cycle. The camera glides forward on its own; the player steers with arrow keys or an on-screen touch joystick, and a seed field regenerates the world. Everything is built in code; no external models, textures or HDRIs. Build it as index.html (plus any local asset files you create) in the current directory, with no build step; three.js and any addons may load from a pinned CDN. It must run at a smooth frame rate on a mid-range phone and touch controls must work. You may serve it locally and open it in headless chromium (/usr/bin/chromium, software WebGL, no GPU) to screenshot and inspect your own output, and iterate on your own before finishing. Close any browser you open as soon as you've taken your screenshot. Finish with a short README.md describing the controls.