Opening the Unity Project

The Unity project is the subfolder of the download repository and named according to the associated lesson.

When opening the project and the included scene on your computer for the first time, Unity will rebuild the library folder, generate the scene lighting, and display some console log messages.

Important! Make sure you use the Unity version specified in the Versions Used section of the release notes and the README for the release you downloaded.

Rebuild Library Folder

During this process, Unity will display the Assets Progress pop-up window while importing all the assets and rebuilding the project's Library folder.
This process will typically take less than a couple of minutes but can take longer on slower systems.
This process will prevent you from working on the Unity project.

Note: For projects with many and/or large assets, the import process can take several minutes.

Generate Scene Lighting

During this process, Unity will display the Precompute Process progress bar, located at the bottom right of the editor, while generating the scene lighting and storing this data as intermediate files in Unity's GI Cache.
This process will typically take less than five minutes but can take longer on slower systems.
This process will not prevent you from working on the Unity project.

Note: For scenes with complex lighting, generating the scene lighting can take a long time.

Tip: We recommend letting the scene lighting generation process complete fully the first time you load the Unity project so the scene lighting appears similar to what you see in the classroom lesson.

Display Console Log Messages

Info Logs (white icon color):

Console message: Rebuilding Library because the asset database could not be found!
- Displayed the first time the project is opened on your computer.
- Triggered because the Library folder has been 'cleaned'.
- This messages can be ignored, but it's recommended to read it.
Console message: Editor: Metal support disabled, skipping device initialization
- Displayed to macOS users any time the project is opened.
- Triggered because 'Metal Editor Support' is disabled.
- This messages can be ignored, but it's recommended to read it.

Warning Logs (yellow icon color):

There will be several warning messages, most are related to minor issues found in the imported models.
These messages can be ignored, but it's recommended to read through them.

Error Logs (red icon color):

There should be no errors when loading the project for the first time.
If you see an error, close and reopen the project.
If the error persists, please report the issue using one of the following options:
- Create an issue on the associated repository.
- Inform your mentor.
- Email Udacity support at vr-support@udacity.com.