s&box Asset Library

Browse free CC0 textures, models, and HDRIs from places like Poly Haven and ambientCG, then import them into s&box as ready-to-compile Source 2 .vmat and .vmdl assets. You can also download them into a reusable library that you mount across projects. Supports Windows and Linux (Proton Aware)

What It Does

• Browse and search CC0 assets by type.
• Preview categories, tags, and available resolutions before downloading.
• Import straight into the active s&box project through the editor bridge.
• Save assets into a reusable library with generated Source 2 materials and models.
• See what's already installed at a glance: cards are bordered green (in your library) or blue (in the connected s&box project).
• Browse what you imported from inside the editor: a dockable Asset Library panel lists the project's imported models and textures with search and a model/texture filter, ready to drag into the scene.

Providers

Provider	Status	Notes
Poly Haven	✅ Working	Textures, models, and HDRIs at all supported resolutions.
ambientCG	✅ Working	Material textures at all supported resolutions.
CC0 Textures	✅ Working	4K material texture archives.
TextureCan	✅ Working	Material texture archives and model archives.
cgbookcase	⏳ Planned	Metadata support exists, but they have some weird redirect based download which is currently preventing use.
sharetextures	❌ No	Their TOS prevents automating downloads, so I will clone their library at some point.

How Importing Works

• Textures: the app downloads the available PBR maps, converts EXR material inputs to PNG when needed, and writes a Source 2 .vmat using shaders/complex.shader.
• Models: the app downloads the mesh and textures, generates a .vmdl, and pairs it with generated materials so s&box can compile it. For modular kits, enable Generate separate kit models to also create one filtered .vmdl per named mesh component.
• s&box import: the editor bridge writes project status to disk, the app installs files into the active project, and the editor picks them up to compile for use in the Asset Browser.
• Proton support: on Linux, the app can locate the bridge inside the s&box Proton prefix and translate Wine paths back to native Linux paths automatically.

Download

https://github.com/adaster98/sbox-cc0-lib/releases

Or Compile yourself

Requires the .NET 10 SDK.

dotnet build SboxAssetLib.slnx
dotnet run --project src/SboxAssetLib.App

On first run the app creates ~/.config/sbox-asset-lib/settings.json and caches thumbnails and downloads under the usual XDG data and cache directories.

Installing the s&box Editor Library

1. Make Libraries/adaster98.sbox-asset-lib/ in your s&box project, then copy the contents of plugin/ into that folder.
2. Restart S&box Editor
3. At the top of the editor, choose Asset Library → Start Bridge.
4. Start the desktop app. When the status bar shows the current project, use Import to s&box.

If the editor is running through Proton, the app will still discover the bridge automatically.

Browsing imported assets in the editor

Open View → Asset Library in the s&box editor to dock a panel listing the models and textures this app has imported into the current project. Search or filter by models/textures, then drag an entry straight into the scene — models spawn as objects, materials drop onto surfaces — or right‑click an entry for Spawn in scene / Show in Asset Browser.

License

Assets fetched through this app are CC0 from their respective providers. The generated library manifest keeps the source and license details with each imported asset.