procedural-landscapes

Generate performant, visually rich procedural terrain in Three.js with a WebGPU-first architecture and automatic WebGL2 fallback.

Implement FBM noise on CPU when GPU compute is unavailable. Self-contained simplex noise avoids external dependencies.

For GPU-accelerated heightmap generation via WGSL compute shaders, see references/wgsl-shaders.md. The compute path generates a heightmap texture on the GPU, then samples it in vertex shaders or reads it back for collision.

Generate procedural 3D landscapes and terrain in Three.js using WebGPU compute shaders with automatic WebGL2 fallback. Covers heightmap generation via FBM noise, ridged multifractal, and domain warping; chunked LOD terrain meshes; slope-based multi-material texturing; procedural water planes; atmospheric sky rendering; and instanced vegetation scattering. Use when building terrain generators, open-world environments, landscape visualizers, flight simulators, or any 3D scene requiring procedural ground surfaces. Triggers: "procedural terrain", "landscape generator", "heightmap", "terrain mesh", "procedural world", "open world", "terrain LOD", "terrain chunks", "noise terrain", "3D landscape". Source: ck42bb/procedural-landscapes-threejs.