1. Basic Unity Scripting/Programming & Components

2. Scripting/programming

3. Scripting Overview
Scripting inside Unity consists of attaching custom script objects called behaviors to game objects.
In C#, subclass MonoBehaviour (note spelling) to implement behaviors.
Different functions inside the script objects are called for certain events.

4. Scripting Overview
Scripting inside Unity consists of attaching custom script objects called behaviors to game objects.
To make this association, simply drag the script from the Project window to the object in the Hierarchy window. (If a dialog appears that says “Losing prefab” then choose “continue.”)

5. Scripting Overview
Different functions inside the script objects are called on certain events.
Most frequently used (overridden):
void Update ( )
This function is called before rendering a frame. This is where most game behavior code goes, except physics code.
void FixedUpdate ( )
This function is called once for every physics time step. This is the place to do physics-based game behavior.
You can also define (override) event handlers. These all have names starting with On, (i.e. OnCollisionEnter). See MonoBehaviour class documentation.

6. Basic 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 ( ) {
NewBehaviourScript is a subclass of MonoBehaviour.
Class name, NewBehaviourScript, must match file name, NewBehaviourScript.cs.

7. Don’t use ctors!
“Using the constructor when the class inherits from MonoBehaviour, will make the constructor to be called at unwanted times and in many cases might cause Unity to crash.”

8. Basic C# Script
using UnityEngine; using System.Collections; public class NewBehaviourScript : MonoBehaviour { public Vector3 something; // Use this for initialization void Start ( ) { } // Update is called once per frame void Update ( ) {
Public member variables will appear in the Unity UI (once an associate between the script and an object has been made).
Private, protected, and public const do not.

10. Components (http://unity3d. com/support/documentation/Components/index

11. Unity Components Animation components Asset components
Audio components
Physics components
The GameObject
Image effect scripts
Settings managers
Mesh components
Network group
Particle components
Rendering components
Transform component
UnityGUI group
Wizards

12. Animation Components Animation Animation Clip
stores all animation data that can be used for animated characters or simple animations

13. Asset Components
Assets are the models, textures, sounds and all other “content” files from which you make your game.
Audio Clip
Cubemap Texture
Flare
Font
Material
Meshes
Movie Texture
Render Texture
Text Asset
Texture 2D

14. Audio Components These Components implement sound in Unity.
Audio Listener
Add this to a Camera to get 3D positional sound.
Audio Source
Add this Component to a GameObject to make it play a sound.
Audio Effects (PRO only)

15. Physics Components Box Collider Capsule Collider Character Controller
Character Joint
Configurable Joint
Constant Force
Fixed Joint
Hinge Joint
Mesh Collider
Physic Material
Rigidbody
Sphere Collider
Spring Joint
Interactive Cloth
Skinned Cloth
Wheel Collider

16. Physics Components Unity uses the PhysX engine from nvidia.
See for demos, and for developers info.

17. The GameObject GameObjects are containers for all other Components.
All objects in your game are inherently GameObjects.
GameObjects do not add any characteristics to the game by themselves.
They are containers that hold Components, which implement actual functionality. For example, a Light is a Component which is attached to a GameObject.
an empty game object

18. Image Effect Scripts
This group handles all Render Texture-based fullscreen image postprocessing effects.
They add a lot to the look and feel of your game without spending much time on artwork.
But they are only available with Unity Pro!

19. Image Effect Scripts Blur image effect Bloom and flares image effect
Color correction curves image effect
Color correction image effect
Contrast enhance image effect
Contrast stretch image effect
Crease image effect
Depth of field image effect
Edge blur image effect
Edge detection image effect
Edge detect normals image effect
Fisheye image effect
Glow image effect
Grayscale image effect
Motion blur image effect
Noise image effect
Sepia tone image effect
Screen Space Ambient Occlusion (SSAO) image effect
Sun shafts image effect
Twirl image effect
Vignetting image Effect
Vortex image effect

20. Settings Managers Audio Manager Input Manager Network Manager
Physics Manager
Player Settings
Quality Settings
Render Settings
Tag Manager
Time Manager
Most can be accessed via Edit  Project Settings  <manager>.

21. Settings Managers
Audio Manager

22. Settings Managers
Input Manager

23. Settings Managers
Network Manager

24. Settings Managers
Physics Manager

25. Settings Managers Player Settings
Player Settings is where you define various parameters (platform specific) for the final game that you will build in Unity.

26. Settings Managers
Quality Settings

27. Settings Managers
Render Settings
fog off (right), and fog on (below)

28. Settings Managers Tag Manager
The Tag Manager allows you to set up Layers and Tags (Edit->Project Settings->Tags).
Tags are used to quickly find objects from scripts, utilizing the Tag name.
Layers can be used to cast rays, render, or apply lighting to certain groups of objects only.

29. Settings Managers Time Manager Fixed Timestep Maximum Allowed Timestep
A framerate-independent interval that dictates when physics calculations and FixedUpdate() events are performed.
Maximum Allowed Timestep
A framerate-independent interval that caps the worst case scenario when frame-rate is low. Physics calculations and FixedUpdate() events will not be performed for longer time than specified.
Time Scale
The speed at which time progress. Change this value to simulate bullet-time effects. A value of 1 means real-time. A value of .5 means half speed; a value of 2 is double speed.

30. (End settings managers – back to components)

31. Mesh Components
3D Meshes are the main graphics primitive of Unity. Various components exist in Unity to render regular or skinned meshes, trails or 3D lines.
Mesh Filter
Mesh Renderer
Skinned Mesh Renderer
Text Mesh

32. Network Group Network View
Network Views are the gateway to creating networked multiplayer games in Unity.
They are simple to use, but they are extremely powerful.
You can learn and discover the fundamental concepts in the Network Reference Guide.

33. Particle Components
Particle Systems are used to make clouds of smoke, steam, fire and other atmospheric effects.
Particle systems in Unity work by using one or two textures, and drawing them many times, creating a chaotic effect.
They are 2D in Unity.

34. Particle Components Ellipsoid Particle Emitter Line Renderer
Mesh Particle Emitter
Particle Animator
Particle Renderer
Trail Renderer
Particle Collider

35. Particle Components Ellipsoid Particle Emitter
The Ellipsoid Particle Emitter spawns particles inside a sphere.
Use the Ellipsoid property below to scale & stretch the sphere.

36. Particle Components Line Renderer
The Line Renderer takes an array of two or more points in 3D space and draws a straight line between each one. A single Line Renderer Component can thus be used to draw anything from a simple straight line, to a complex spiral. The line is always continuous; if you need to draw two or more completely separate lines, you should use multiple GameObjects, each with its own Line Renderer.
The Line Renderer does not render one pixel thin lines. It renders billboard lines that have width and can be textured. It uses the same algorithm for line rendering as the Trail Renderer.

37. Particle Components Mesh Particle Emitter
The Mesh Particle Emitter emits particles around a mesh. Particles are spawned from the surface of the mesh, which can be necessary when you want to make your particles interact in a complex way with objects.

38. Particle Components Particle Animator
Particle Animators move your particles over time, you use them to apply wind, drag & color cycling to your particle systems.

39. Particle Components Particle Renderer
The Particle Renderer renders the Particle System on screen.

40. Particle Components Trail Renderer
The Trail Renderer is used to make trails behind objects in the scene as they move about.

41. Particle Components Particle Collider
The World Particle Collider is used to collide particles against other Colliders in the scene.

42. Particle Components Once again, they are 2D in Unity.
See for examples of 3D particle systems.
Also see for Intel’s parallel 3D particle systems (2 videos: demo and discussion).

43. Rendering Components
This group contains all Components that have to do with rendering in-game and user interface elements. Lighting and special effects are also included in this group.
Camera
Flare Layer
GUI Layer
GUI Text
GUI Texture
Halo
Halo Layer
Lens Flare
Light
Lightmapping
Projector
Skybox

44. Rendering Components Camera
Cameras are the devices that capture and display the world to the player. By customizing and manipulating cameras, you can make the presentation of your game truly unique. You can have an unlimited number of cameras in a scene. They can be set to render in any order, at any place on the screen, or only certain parts of the screen.

45. Rendering Components Camera
Two-player display created with Normalized Viewport Rectangle

46. Rendering Components Camera
perspective (left) and orthographic/parallel (right)

47. Rendering Components Camera Render texture
This feature is only available for Unity Advanced licenses. It will place the camera's view onto a Texture that can then be applied to another object. This makes it easy to create sports arena video monitors, surveillance cameras, reflections etc.
A Render Texture used to create a live arena-cam below.

48. Rendering Components Flare Layer
The Flare Layer Component can be attached to Cameras to make Lens Flares appear in the image.
By default, Cameras have a Flare Layer already attached.

49. Rendering Components GUI Layer
A GUI Layer Component is attached to a Camera to enable rendering of 2D GUIs.
When a GUI Layer is attached to a Camera it will render all GUI Textures and GUI Texts in the scene. GUI Layers do not affect UnityGUI in any way.
You can enable and disable rendering GUI in a single camera by clicking on the check box of the GUI Layer in the Inspector.

50. Rendering Components GUI Text
GUI Text displays text of any font you import in screen coordinates.

51. Rendering Components GUI Texture
GUI Textures are displayed as flat images in 2D. They are made especially for user interface elements, buttons, or decorations. Their positioning and scaling is performed along the x and y axes only, and they are measured in Screen Coordinates, rather than World Coordinates.

52. Rendering Components Halo
Halos are light areas around light sources, used to give the impression of small dust particles in the air.

53. Rendering Components Halo Layer
The Halo Layer can be attached to Cameras to make Halo objects appear in the image.
It has no properties of its own.

54. Rendering Components Lens Flare
Lens Flares simulate the effect of lights refracting inside camera lens.
They are used to represent really bright lights or, more subtly, just to add a bit more atmosphere to your scene.

55. Rendering Components Light
Lights will bring personality and flavor to your game.
You use lights to illuminate the scenes and objects to create the perfect visual mood.
Lights can be used to simulate the sun, burning match light, flashlights, gun-fire, or explosions, just to name a few.

56. Rendering Components
Light
ex. point light

57. Rendering Components Light
Point lights can have cookies (i.e., a cubemap texture with alpha channel). This Cubemap gets projected out in all directions.

58. Rendering Components Light
Spot lights only shine in one direction, in a cone. They are perfect for flashlights, car headlights or lamp posts. They are the most expensive on the graphics processor.

59. Rendering Components Light
Spot lights can also have cookies - a texture projected down the cone of the light. This is good for creating an effect of light shining through the window.

60. Rendering Components Light
Directional lights are used mainly in outdoor scenes for sun & moonlight. The light affect all surfaces of objects in your scene.
They are the least expensive on the graphics processor.

61. Rendering Components Light
Directional Light projecting a cloud-like cookie texture.
A cookie is a great way to add some quick detail to large outdoor scenes. You can even slide the light slowly over the scene to give the impression of moving clouds.

62. Rendering Components Lightmapping
Advanced features such as bumpmapping and “baked in” or realtime shadows.

63. Rendering Components Projector
Projectors allow you to project an arbitrary Material on all objects that intersect its frustum.
A Projector is used to create a Blob Shadow for this Robot (below).

64. Rendering Components Skybox
Skyboxes are a wrapper around your entire scene that display the vast beyond of your world.

65. Transform Component
This group is for all Components that handle object positioning outside of Physics.
Transform

66. UnityGUI Group
UnityGUI is the GUI creation system built into Unity. It consists of creating different Controls, and defining the content and appearance of those controls.
GUI Skin
GUISkins are a collection of GUIStyles that can be applied to your GUI. Each Control type has its own Style definition. Skins are intended to allow you to apply style to an entire UI, instead of a single Control by itself.
GUI Style
GUI Styles are a collection of custom attributes for use with UnityGUI. A single GUI Style defines the appearance of a single UnityGUI Control.

67. Wizards
Unity has a simple wizard that lets you create your own ragdoll in no time. You simply have to drag the different limbs on the respective properties in the wizard. Then select create and Unity will automatically generate all Colliders, Rigidbodies and Joints that make up the Ragdoll for you.
Ragdoll Wizard