This document serves as an introduction to Unity, covering its features such as cross-platform support, rapid development tools, and a large community. It guides users through the initial setup, interface components, and how to create a simple game scene, including manipulating 3D objects and adding scripts. Additionally, it provides links to resources for further learning and development in Unity.

1. DES241
2020
Introduction to Unity (06/08/2020)

2. Mixed Reality
Remote Collaboration dSystem
Prasanth Sasikumar

3. Intro To Unity
Prasanth Sasikumar
Empathic Computing Lab

4. 4
Games!

5. 5

6. 6
Unity editor

7. 7
Unity Reel
https://youtu.be/QCqTn3SbfA0

8. 8
Adam - Real Time Movie
https://www.youtube.com/watch?v=INbwoxfSBjQ

9. 9
AR VR Games
https://www.youtube.com/watch?v=zNMlglRyRSo

10. Unity 3D features
● Cross platform
○ Windows, OSX, iOS, Android, Linux, WebGL, etc.
● Fast rapid development
○ Visual scene assembly, rapid prototyping
● Control over rendering pipeline
○ Access to low level graphics, shader programming
● Scripting in multiple coding languages
○ C#, C++, Javascript, etc.
● Asset store with thousands of contributions
○ Models, behaviours, programming tools, etc.
● Very large developer/support community 10
Unity 3D features

11. 11
Download Unity
Download Unity - https://store.unity.com/
Pick version of Unity

12. 12
Unity Business

13. 13
Unity Basics

14. 14
Unity Hub
● Install Unity Hub
○ Download Unity Hub – pick components you want
○ https://unity3d.com/get-unity/download

15. 15
Getting Started
● First time running Unity you’ll be asked to create a
project
● Pick 3D, specify project name and location
Getting Started

16. 16
Unity Interface

17. 17
Customizable Interface

18. 18
Unity Interface
Scene View
● Where the game is constructed
● Visually place all the assets
○ models, cameras, other pieces that
make up the game

19. 19
Unity Interface
Hierarchy Window
● List of all current GameObjects being
used in the application
● GameObjects can be nested
● Can have multiple scenes

20. 20
Unity Interface
Project Window
● Contains at the assets needed for
application
● Drag assets into the hierarchy
window

21. 21
Unity Interface
Inspector View
● Configure any GameObject
• Change properties
• Add components

22. Building Scenes
● Use GameObjects:
○ Containers that hold different components, Eg 3D model, texture, animation
● Use Inspector
○ View and edit object properties and other settings
● Use Scene View
○ Position objects, camera, lights, other GameObjects etc
● Scripting
○ Adding interaction, user input, events, etc
22
Unity 3D features

23. 23
Getting Started
● Every object in Scene is a GameObject
● GameObjects contain Components
• e.g. Transform Component, Camera Component
GameObjects

24. 24
Getting Started
Adding 3D Content
● Create 3D asset using modeling package, or download
○ Fbx, Obj file format for 3D models
● Add file to Assets folder in Project
● Or drag the file into Project View
● Drag mesh from Project View into Hierarchy or Scene View
○ Creates a game object

25. 25
Getting Started
Positioning/Scaling Objects
● Click on object and choose transform

26. 26
Getting Started
Manipulating Objects and Camera
● Panning and scaling

27. 27
Getting Started
Unity Coordinate Frame
● Left handed coordinate system.
● Select axes to translate object

28. 28
Getting Started
Rotation About Axes
● Use rotation tool, select rotation line

29. 29
Unity Asset Store
● Download thousands of models, scripts, animations, etc
● https://assetstore.unity.com/

30. 30
Unity Asset Store

31. 31
Unity Simple Scene

32. Making a Simple Scene
1. Create New Project
2. Create Game Object
3. Moving main camera position
4. Adding lights
5. Adding more objects
6. Adding physics
7. Changing object materials
8. Adding script behaviour
32
Making a Simple Scene

33. 33
Making a Simple Scene
● Create new folder and project
Create Project

34. 34
Making a Simple Scene
● Load a Sphere into the scene
● GameObject -> 3D Object -> Sphere
Create GameObject

35. 35
Making a Simple Scene
● Select Main Camera
● Select translate icon
● Move camera
Moving main camera

36. 36
Making a Simple Scene
● GameObject -> Light -> Directional Light
● Use inspector to modify light properties (colour, intensity)
Add Light

37. 37
Making a Simple Scene
● Select Sphere
● Add Rigidbody component
● Add Component -> Physics -> RigidBody or Component -
> Physics -> RigidBody
● Modify inspector properties (mass, drag, etc)
Add Physics

38. 38
Making a Simple Scene
● Add several cubes
● GameObject -> 3D Object – Cube
● Move cube
● Add Rigid Body component (uncheck gravity)
Add More Objects

39. 39
Making a Simple Scene
● Assets -> Create -> Material
● Click Albedo colour box in inspector
● Select colour
● Drag asset onto object to apply
Add Material

40. 40
Making a Simple Scene
● Assets -> Create -> C# script
● Edit script using Mono/Visual Studio
● Drag script onto Game Object
Add Script

41. 41
Making a Simple Scene
● GameObject Rotation
Example C# Script
using UnityEngine;
using System.Collections;
public class NewBehaviourScript: MonoBehaviour {
// Use this for initialization
void Start () {
}
// Update is called once per frame
void Update () {
this.gameObject.transform.Rotate(Vector3.up*10);
}
}

42. Scripting C# Unity 3D
● void Awake():
○ Is called when the first scene is loaded and the gameobject is active
● void Start():
○ Called on first frame update
● void FixedUpdate():
○ Called before physics calculations are made
● void Update():
○ Called every frame before rendering
● void LateUpdate():
○ Once per frame after update finished
42
Unity 3D features

43. 43
Making a Simple Scene
● Placement

44. 44
Making a Simple Scene
● Final Spinning Cube Scene

45. Resources
● Unity Main site
○ https://unity.com/
● Vuforia
○ https://library.vuforia.com/getting-started/overview.html
● Official Unity Tutorials
○ https://learn.unity.com/
● Unity Coder Blog
○ http://unitycoder.com
45
Unity 3D Resources

46. DES241
2020
Prasanth Sasikumar
psas598@aucklanduni.ac.nz