Mobile AR Lecture6 - Introduction to Unity 3D
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The document provides an overview of a lecture on mobile-based augmented reality development using Unity, covering essential features for getting started with Unity 3D such as the interface, game objects, and scripting in C#. It includes steps for creating a simple scene, adding objects, lights, physics, and materials, as well as examples of C# scripts for manipulating game objects. Additional resources and official Unity tutorials are also mentioned for further learning.
Mobile AR Lecture6 - Introduction to Unity 3D
- 1. LECTURE 6: INTRODUCTION TO UNITY Mark Billinghurst [email protected] Zi Siang See [email protected] November 29th-30th 2015 Mobile-Based Augmented Reality Development
- 3. Unity 3D Game Editor
- 4. What You Need to Learn • Camera • Scene View (trans, rot, scale)/Game View • Position Objects • Load Assets • Scripting – C# • Inspector/Component Properties • Assemble Scene • Loading primitive objects • Easy Materials – creating solid colour/texture • Lights
- 5. SETUP
- 6. Download and Install • Go to unity3d.com/download • Use Download Assistant – pick components you want
- 7. Getting Started • First time running Unity you’ll be asked to create a project • Specify project name and location • Can pick asset packages (pre-made content)
- 8. Unity Interface • Toolbar, Scene, Hierarchy, Project, Inspector
- 10. 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
- 11. GameObjects • Every object in Scene is a GameObject • GameObjects contain Components • Eg Transform Component, Camera Component
- 12. 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 • When project opened 3D model added to Project View • Drag mesh from Project View into Hierarchy or Scene View • Creates a game object
- 13. Positioning/Scaling Objects • Click on object and choose transform
- 14. UNITY BASICS
- 15. 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
- 16. CreateProject • Create new folder and project
- 18. Create GameObject • Load a Sphere into the scene • GameObject -> 3D Object -> Sphere
- 19. Moving main camera • Select Main Camera • Select translate icon • Move camera
- 20. Add Light • GameObject -> Light -> Directional Light • Use inspector to modify light properties (colour, intensity)
- 21. Add Physics • Select Sphere • Add Rigidbody component • Add Component -> RigidBody or Component -> Physics -> RigidBody • Modify inspector properties (mass, drag, etc)
- 22. Add More Objects • Add several cubes • GameObject -> 3D Object – Cube • Move cube • Add Rigid Body component (uncheck gravity)
- 23. Add Material • Assets -> Create -> Material • Click Albedo colour box in inspector • Select colour • Drag asset onto object to apply
- 24. Add Script • Assets -> Create -> C# script • Edit script using Mono • Drag script onto Game Object
- 25. Example C# Script GameObject Rotation using UnityEngine; using System.Collections; public class spin : MonoBehaviour { // Use this for initialization void Start () { } // Update is called once per frame void Update () { this.gameObject.transform.Rotate(Vector3.up*10); } } #
- 26. Scripting C# Unity 3D • void Awake(): • Is called when the first scene is loaded and the game object 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
- 27. Final Spinning Cube Scene
- 28. More Spinning using UnityEngine; using System.Collections; public class Spin : MonoBehaviour { public float speed = 10; // Update is called once per frame void Update () { transform.Rotate (Vector3.up, speed * Time.deltaTime); } }
- 29. Tanks Demo • Explore scripts, assets, objects
- 30. Resources • Unity Main site • http://www.unity3d.com/ • Holistic Development with Unity • http://holistic3d.com • Official Unity Tutorials • http://unity3d.com/learn/tutorials • Unity Coder Blog • http://unitycoder.com