VR or AR, and the player setups

Every lesson lives in its own scene: a file that holds the room, the machines and everything the learner sees. Scene Generation makes a new scene and puts the player setup in it, so the learner's headset, controllers or hands work straight away.

New to Unity? The basic terms (Scene, Hierarchy, Project window, Play mode) are explained in Before you start.

VR or AR?

Decide this first, because it changes what the learner sees around them.

	The learner sees…	Good for
VR	A virtual room. The real world is hidden.	Lessons that take place entirely in the virtual world.
AR	The real room through the headset's cameras (passthrough), with your 3D content added.	Lessons next to a real machine or on a real workbench.

The five player setups

You choose one in the Target XR Mode list:

Option	Mode	Learners use…
VR Controllers	VR	The headset's controllers.
VR Hands	VR	Their hands (hand tracking).
VR Hand Locomotion	VR	Their hands, and can also move around the virtual room.
AR Controllers	AR	The headset's controllers.
AR Hands	AR	Their hands (hand tracking).

In the list, the names may be shown with underscores, for example VR_Controllers.

Where new scenes are saved

New scenes are saved in the Project window under Assets/ALF-Generated/Scenes. The file name is the name you type in the tool.

Choose a good name

If you add the lesson to the main menu, the scene's file name becomes the text on its button. A name like Pump maintenance works better than New Case Scene.

Opening the tool

In Unity's top menu, choose ALF > Scene Generation. The window has two tabs at the top:

• Create New Scene: makes a new lesson scene.
• Update Existing Scene: changes the player setup of a scene you already have.

Not while the scene is playing

The tool doesn't work in Play mode. Stop Play mode first.