A grid of vertices. Noise pushing them up and down. Suddenly: terrain.

PLAIN Generator, built by Kyiv-based designer Anatolii Babii, creates low-poly 3D plane graphics in the browser. The approach is straightforward: take a flat grid of vertices, apply simplex noise to displace them vertically, and render the result as a triangulated mesh. What emerges looks like abstract terrain, somewhere between topographic maps and early flight simulator landscapes.

The tool exposes extensive control over the animation. You can adjust how the noise shapes the surface, how the camera frames it, how the colors map across elevation. Built-in presets demonstrate different configurations, from rolling hills to sharp crystalline spikes. Like Babii's other tools, you can save your own configurations as JSON for later. The interface uses Tweakpane, and Babii recommends full screen mode for the best experience. Export as PNG stills or capture animation loops directly. For longer or higher-resolution videos, export as PNG sequences and convert with FFmpeg.

Go ahead. Play with it. Feed in parameters, watch the system respond, capture what looks good.