Gaitkit Open the lab
Hill Mound, A rounded hill on a 4, 8 or 12 m terrain tile: a seeded lumpy dome 1 to 8 m high (at most 3 m per cell of footprint) that settles back to the 0.4 m ground line before every edge, so it drops into a field of ground tiles without seams. Steep facets turn to bare rock, and an optional rocky outcrop crowns the top.
Nature · Still

Hill Mound

A rounded hill on a 4, 8 or 12 m terrain tile: a seeded lumpy dome 1 to 8 m high (at most 3 m per cell of footprint) that settles back to the 0.4 m ground line before every edge, so it drops into a field of ground tiles without seams. Steep facets turn to bare rock, and an optional rocky outcrop crowns the top.

Size
8.0 × 3.6 × 8.0 m
Triangles
2,428
Open in the lab Ready for any engine. The download carries the knobs you set here.

Tune it

5 knobs: Biome, Size, Height, Outcrop, Seed.

Specs

Size
8.0 × 3.6 × 8.0 m
width × height × depth
Triangles
2,428
of 6,000
Draw calls
1
one vertex-colour material
Knobs
5
3 presets
Night lights
2
lava, glow

Passed the validator: real scale, rests on y = 0, front faces +Z, deterministic.

Use it

Code for the specimen as it is set up above; it follows your knobs.

JavaScript
import { createAsset } from 'https://gaitkit.com/cdn/hill-mound.mjs';

const hillMound = createAsset();
scene.add(hillMound);                      // rests on y = 0, front faces +Z

More in the docs; agents can fetch all of this through MCP.

Knobs

KnobTypeValuesDefaultWhat it does
biomechoicegrass desert snow rock volcanic aliengrassShared by every Terrain piece: grass (green hill), desert (a sand dune with a sharp crest), snow (white with rock on the steep sides), rock (bare stone hill), volcanic (ash cone), alien (violet mound with glowing plants).
sizerange1 to 3, step 12Footprint in 4 m grid cells: 1 = 4 x 4 m, 2 = 8 x 8 m, 3 = 12 x 12 m.
heightrange1 to 8, step 0.53Height of the top above the ground line, in metres; capped at 3 m per grid cell of size so a hill never becomes a spire. Steep sides turn to rock.
outcroptoggleon / offtrueA cluster of boulders breaking through the top.
seedrange1 to 50, step 17Changes the outline, the lumps, the summit position and the decor. Edges match for every seed.

Presets: sand dune {"biome":"desert","size":2,"height":3.5,"outcrop":false} · ash cone {"biome":"volcanic","size":2,"height":6,"seed":12} · grassy knoll {"biome":"grass","size":1,"height":1.5,"outcrop":false}

Files

FileWhat
hill-mound.glbGLB, default look · 268 KB
hill-mound.mjsES module, every knob live
hill-mound.objOBJ, static, no colour
hill-mound-params.jsonknob schema, presets, night zones

Licence

Use it in games, apps, renders and client work, commercially and without credit. Do not resell it as an asset or train a 3D generator on it. The full licence.