Decals in Prefabs

Decals can be placed within prefabs when they either are soft-baked using "Bake on Awake" or hard baked using the "Save as Asset" option as found in the "Extras" tab. The normal "Bake" option is only available within the scene because the mesh can be serialized in the scene root.

Create a prefab and mesh asset from a decal

1. Place decal within your scene and bring it to its final shape.
2. Navigate to the "extras" tab on the decal inspector.
3. Enable the "Instantiate after save" option.

The decal is now hard-baked into a regular mesh and referenced by the prefab.

Note: This does not work in Prefab Stage mode because of Unity limitation.