Demi Woodland Vegetation

Original CC0 low-poly starter art for Demi terrain. No downloaded meshes, textures, external generators, or runtime scripts are required.

Add demi.terrain.vegetation version ^1.0.0 through the package workflow. The palette is asset://demi/vegetation/palettes/woodland; it contains independent grass, shoreline reed, oak, pine and boulder rules. Terrain-local units are meters. Its physical densities are starting points; water, slope, spacing and cluster filters reduce the resulting counts. The palette has no ground material set so it can accompany an existing landscape appearance.

Reusable prefabs are prefab://demi/vegetation/grass, reed, oak, pine and boulder under the same prefix. Grass and reeds have no colliders and use the collision-none scatter path. Trees have only a trunk capsule, with independently shaded bark and moving crown geometry. Boulders use a deliberately conservative box collider; their visual silhouette is faceted stone. No leaf physics bodies are created. Palette collision policies can disable the selective colliders.

All geometry uses indexed glTF triangles with authored normals and embedded buffers. Model IDs use asset://demi/vegetation/models/ followed by grass, reed, trunk, oak_crown, pine_crown or boulder. Every model also has _medium and _low alternatives with fewer blades, radial segments or crown facets. Prefabs select these through standard MeshRenderer LOD fields and use finite culling distances. Grass is approximately 0.65 m tall, reeds 1.8 m, trees 5.5 m, and boulders 2.2 m wide before placement scale variation.

Ordinary Material assets under asset://demi/vegetation/materials/ supply bark, leaves, grass, reed, stone and ground colors. Grass, reed and leaves opt into shared height-weighted wind; bark and stone remain still. Wind is visual only and does not affect collision or deterministic placement. Opaque double-sided grass geometry avoids alpha sorting and texture dependencies.

Recreate the meshes with Python 3:

python3 packages/sources/demi.terrain.vegetation/tools/make_models.py
python3 packages/sources/demi.terrain.vegetation/tools/check_models.py

Run from any directory using the script's absolute path. The source algorithm is deterministic and uses only Python's standard library. It writes maintained source assets, not cooked/build output. After editing/rebuilding source meshes, reimport the manifests through Demi before cooking a project. The qualification project is examples/vegetation_3d.

All package content, including the generator, was created for DemiEngine and is dedicated to the public domain under CC0-1.0; see LICENSE. There are no external art dependencies and no attribution requirement.