Asset library

The library holds 748 assets: 674 3D models, 46 PBR texture sets and 28 HDRI skies. Each has a verified licence, a credited author and a file optimised for the browser.

Browsing the library#

The explorer#

The /explorer page shows the whole catalogue: filters by category (plus “featured” and “games”), by style, search on name, tags and author, sort by popularity, newest or name. Cards load 48 at a time and play a turntable preview on hover.

The 3D viewer#

Each asset has its page /asset/<id> (for example /asset/qt-t-rex): a real-time viewer with HDRI environments, wireframe, normals and textured views, then the card (category, style, author, licence, source, polygons, size, animations), the attribution line when required, and two buttons: Use in my game and Download.

Using an asset in a game#

1. Open the library

   On the Build step, or in the asset editor. ⌘K searches it from anywhere in the studio, and the Cast step has its own browser, limited to animated characters and creatures. Filter by category or style, or type a keyword.

2. Click a thumbnail

   The asset is added to the project and selected for placing. An anim badge marks models that carry animations. Clicking an asset already in the project reselects it without duplicating it.

3. Click the ground

   With the Place tool, each click drops an entity with the chosen role. With Scatter, drag to sprinkle the asset as props (vegetation, rocks).

A library asset is referenced by URL: nothing is copied into your document, which stays light. The model.libraryId field keeps the link to the catalogue.

{
  "id": "a_x81k",
  "name": "T-Rex",
  "kind": "model",
  "model": {
    "format": "glb",
    "url": "https://…/library/qt-t-rex/model.glb",
    "libraryId": "qt-t-rex",
    "animations": ["Armature|TRex_Idle", "Armature|TRex_Walk", "Armature|TRex_Run", "…"],
    "height": 4.2
  }
}

Textures and skies#

PBR texture sets (colour, normal, roughness) apply to primitives from the primitive editor’s material panel. HDRI skies are picked on the Map step, Camera & atmosphere section: they serve as both the sky and the environment lighting.

Materials and textures · Sky, time and weather

The catalogue in numbers#

By category#

By style#

116 models can be animated (skinned meshes or node-animated characters) and 116 contain at least one animation. Characters from the same pack share their skeleton, which lets you borrow their clips.

Sources and licences#

Only CC0, CC-BY and MIT licences are published: no clear licence, no asset. Sketchfab, Fab and Mixamo are excluded (mixed licences or no redistribution), as are models marked CC-BY 3.0 or non-free in the sources we use.

How the files are prepared#

Every model goes through an optimisation pipeline before reaching the library, so it loads fast and shows at the right size:

Asset entry#

The catalogue is a versioned JSON manifest, served by GET /api/library. Each entry looks like this:

Next#