Terrain Generator

Pick an area (max 6×6 km), then generate a lightweight terrain mesh + exports - fully client-side.

Selection

Width (km)

Height (km)

Center lat

Center lon

Mapbox

Mapbox access token

Remember token on this device

Imagery zoom

Elevation zoom

Mesh

Mesh density

What is this tool

Generate a self-contained terrain package directly in the browser: a lightweight triangulated mesh (grid-TIN), a texture map, and a 16-bit heightmap for game engines.

How it works

Selection: choose center and size (max 6×6 km).
Elevation: stitched Terrain Tiles (Terrarium) decoded and normalized to 16-bit.
Mesh: stable grid triangulation with diagonal flipping for clean results.
Exports: GLB/OBJ mesh, PNG/JPG texture, and 16-bit PNG or RAW .r16 heightmap.

Tip: If you see blocky elevation, increase Elevation zoom for higher detail.

Tutorial

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Frequently Asked Questions

Quick answers about the Terrain Generator and exports.

Why is there a 6×6 km limit?

It keeps downloads fast and avoids heavy tile requests. We can increase this later once caching and batching are tuned.

Which heightmap format should I use?

16-bit PNG is convenient for most DCC tools. .r16 is great for Unreal Engine landscape imports.

Can I use my own imagery source later?

Yes - this tool is structured so additional tile sources can be added as dropdown options without changing exports.