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A Unity Primitives with WebGL


Prebuilt SteamVR Project with Universal Rendering Pipeline & Post Processing
Download this 2020 scene, move the folder to your Desktop or working area.
This file is already setup with SteamVR and some other tools.
https://classes.dma.ucla.edu/Winter22/156/projects/URPtemplate.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.

unity_toolbar
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.
unity_persp_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.   unity_play_arrow

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.
unity_steam_no_VRheadset_error copy



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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

unity_phy_material2

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 unity_dot to c
hange 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
unity_examplea_vote
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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