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Prebuilt VR Project
Download this 2020 Unity scene, move the folder to your Desktop or working area.
This file is already setup with SteamVR and some other tools. It is missing OpenVR XR Plugin in order to publish WebGL
https://classes.dma.ucla.edu/Winter22/156/projects/template.zip
PC: Right mouse over folder select Extract All...
Rename the template folder. Place it in a new location.
Start the Unity Hub
Select ADD
Locate your renamed project folder
Click on the project to start
Mac Only:
Mac error: Answer SwitchTarget
Add Some Primitives
The nice thing about primitives, the collision boundaries are already set up.
Choose GameObject->3D Object->Sphere etc.
Hand moves the view, Move Tool, Rotate, Scale, Rectangle Select and the Move Rotate Scale Tool.
Add more primitive shapes, place them above the floor.
Add Some Materials
Select Assets->Create->Material.
Double click the material in Assets below.
Change the Albedo color in the Inspector on the right.
Drag and drop the material onto the primitive while in Scene Mode
Scene View Camera
Use the Alt key left mouse to tumble the camera. Alt right mouse to zoom.
Click an axis such as X in with the XYZ axis to look down the X axis.
You can toggle between Persp, Iso and 2D by clicking on the word below the axis.
F for Frame
Select an object, hit f
The camera will adjust the clipping planes and zoom in on the object.
You may notice some objects gradually disappearing, use f to adjust this.
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Try your Project in Simuator mode if you do not have a headset
Hit the Play button to stop and start your game. 
If you are running in Simulator mode use w a s d, q r or the arrow buttons to navigate around the scene, and the right mouse to rotate the camera. Left mouse for interactions.
Ignore this error, this means you do not have a VR headset connected.
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Rigid Bodies and Gravity
You may add physics qualities such as weight and gravity to objects in your scene
The object should have a collider, it is not requited.
Select the object(s) in the Hierarchy
Use Add Component button located in the Inspector at the bottom
Locate Physics->RigidBody
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Throwable Objects
The throwable tool is made by Valve for SteamVR.
Create a cube, GameObject->3D Object->Cube
Select the cube
Use Add Component button located in the Inspector at the bottom.
search for throw select Throwable
Under Interactable Script in the Inspector
Turn off Highlight on Hover
Hit Play and throw your object, view this in the Game tab.
(This tool adds 3 scripts, RigidBody, Thowable and Interactable. Your object needs a collider for this to work.)
Add Velocity
Select the cube, use Add Component
search for vel select VelocityEstimator
Hit Play
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Add a Physics Material to make the objects bouncy
Select the Assets->Create->Physic Material from the menu.
Give the material a name.
Select the Physic Material
Change Bounciness to .4 in the Inspector
Select the object you would like to adjust the bounciness:
In the Inspector tab, under Collider, assign the Material
Hit Play, try adjusting the bounciness.
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Import a new Skybox
Go to the Unity Asset Store on-line.
Type skybox in the search bar, Select Free Assets
select Add to My Assets
You will need to be logged in, Select your account icon
Go to My Assets
Select Open in Unity
The Package Manager will open
Find the skybox you selected
Select Download
Select Import twice
Choose Window->Rendering->Lighting Environment tab
Click the  to change the Skybox Material to the skybox you imported.
You can also make your own.
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Publish to WebGL
You may view your project on a website server and access via the internet
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EXAMPLE
https://classes.dma.ucla.edu/Winter21/156/projects/examples/A_vote_primitives_player
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How to transfer Your Project Between Mac and PC
Move the entire project over to the PC or Mac, keep a backup
Open Unity Hub
Under Projects
Select ADD
Select your folder
Start the project from the list of Projects
If it asks you to SwitchTarget upgrade or downgrade you must answer CONFIRM
(If the versions are close enough it should work.)
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OBS
OBS screen capture VR documentation
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Later install OpenVR XR Plugin to run a VR Headset
This plugin interferes with WebGL publish.
Select File->Build Settings...
Select PC, Mac & Linux Standalone
Select Switch Platform
Download: OpenVR
Click Latest button to download: com.valvesoftware.unity.openvr-1.1.4.tgz tarball file
XR Plug-in called OpenVR Loader or OpenVR XR Plugin.
Under the +, upper left
Select Add package from tarball...
Locate the com.valvesoftware.unity.openvr-1.1.4.tgz tarball file in your downloads folder
Fix Bindings, if there is an error message
Delete the Assets/SteamVR_Input folder in your project.
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