Importing assets
Firstly, it creates engine optimized assets and stores them in cache directory. One file can create more than one engine optimized asset file. For example, GLTF files can creates individual animation, mesh, material assets.
Cache directory should not never be modified manually as it can lead to undefined behaviors. Additionally, the cache directory should not be checked into the version control.
For convenience, we already provide a .gitignore file that will exclude the cache directory.
Secondly, a meta file will be created in the assets directory. This YAML based metafile stores the hash of the imported asset and UUIDs associated with the asset.
Make sure to include the meta files in your version control since without them, the engine will not be able to associate internal referenced assets with imported assets.