In Voxel Plugin, data is sent around between different processing stages and Unreal's rendering pipeline. Aside from the shape of the terrain, this data is Surface Types and Metadata.

WARNING

Materials in Voxel Plugin are represented by Surface Type assets. They have this name just to avoid confusion with Unreal Engine's native materials; whenever materials are mentioned, we're referring to the Unreal Engine materials. Voxel Plugin's material-related assets will always be referred to as Surface Types.

Both Surface Types and Metadata can be queried from gameplay code, or by Voxel Stamps (including user-made graphs) as they're generating the world.

TIP

Under the hood, surface types are also metadata. Just like metadata, they're queried by the generation pipeline when needed, and they're passed into the rendering pipeline using texture data.