Getting to know unity, special thanks to JUST and my friend Ruba Al-Saa'di and Dr. Natheer. We are waiting for Patented a small request caused a technology revolution.

1. Unity Basics
Dr. Natheer Khasawneh

2. Learning the Interface

3. Project View

4. Project View
• Every Unity project contains an Assets folder.
• The contents of this folder are presented in the
Project View.
• This is where you store all the assets that make
up your game, like scenes, scripts, 3D models,
textures, audio files, and Prefabs.
• If you right-click on any asset in the Project View,
you can choose Reveal in Explorer (Reveal in
Finder on Mac) to actually see the asset itself in
your file system.

5. Project View
• To add assets to your project, you can drag any file
from your OS into the Project View, or use Assets-
>Import New Asset. Your asset is now ready to be used
in your game. More information about working with
assets to be presented later in Asset Workflow.
• Scenes are also stored in the Project View. Think of
these as individual levels. To create a new Scene, use
Control-N. To save the current Scene into the Project
View, use Control-S.
• Some game assets need to be created from within
Unity. To do this, use the Create drop-down, or right
click->Create. (see the image in the next slide)

6. Creating new Asset
This will allow you to add scripts, Prefabs, or folders to keep your project organized. You
can rename any asset/folder by pressing F2 on Windows, or with two paced clicks on the
asset name. If you hold the Alt key while you expand or contract a directory, all
subdirectories will also be expanded or contracted.

7. Hierarchy
• The Hierarchy contains every GameObject in the current Scene.
• GameObject are:
– Direct instances of asset files like 3D models.
– Instances of Prefabs
• As objects are added and removed from the scene, they will appear and
disappear from the Hierarchy as well.

8. Parenting
• Unity uses a concept called Parenting. To make
any GameObject the child of another, drag the
desired child onto the desired parent in the
Hierarchy.
• A child will inherit the movement and rotation
of its parent. You can now expand and
contract the parent to see its children in the
Hierarchy without affecting your game.

9. Parenting
Two unparented objects One object parented to another
We will learn more about Parenting in the Transform Component topic.

10. Toolbar
• The Toolbar consists of five basic controls.
Each relate to different parts of the Editor.

11. Scene View
The Scene View is your interactive sandbox. You will use the Scene View to select and
position environments, the player, the camera, enemies, and all other GameObjects.
Maneuvering and manipulating objects within the Scene View are some of the most
important functions in Unity, so it's important to be able to do them quickly.

12. Scene View Navigation
• See Scene View Navigation for full details on navigating
the scene view. Here's a brief overview of the essentials:
– Hold the right mouse button to enter Flythrough mode. This
turns your mouse and WASD keys (plus Q and E for up and
down) into quick first-person view navigation.
– Select any GameObject and press the F key. This will center
the Scene View and pivot point on the selection.
– Use the arrow keys to move around on the X/Z plane.
– Hold Alt and click-drag to orbit the camera around the current
pivot point.
– Hold Alt and middle click-drag to drag the Scene View camera
around.
– Hold Alt and right click-drag to zoom the Scene View. This is
the same as scrolling with your mouse wheel.

13. Scene View Navigation
You might also find use in the Hand Tool (shortcut: Q), especially if you
are using a one-button mouse. With the Hand tool is selected,
In the upper-right corner of the Scene View is the Scene Gizmo. This displays
the Scene Camera's current orientation, and allows you to quickly modify
the viewing angle.

14. Scene View Control Bar
• The Scene View control bar lets you see the scene
in various view modes - Textured, Wireframe,
RGB, Overdraw, and many others. It will also
enable you to see (and hear) in-game lighting,
game elements, and sound in the Scene View. See
View Modes for all the details.

15. Game View
• The Game View is rendered from the
Camera(s) in your game. It is representative of
your final, published game. You will need to
use one or more Cameras to control what the
player actually sees when they are playing
your game. We will discuss more about
Cameras, in the Camera Component page.

16. Play Mode
• Use the buttons in the Toolbar to control the
Editor Play Mode and see how your published
game will play. While in Play mode, any
changes you make are temporary, and will be
reset when you exit Play mode. The Editor UI
will darken to remind you of this.

17. Game View Control Bar
• The first drop-down on the Game View control bar is the Aspect
Drop-down. Here, you can force the aspect ratio of the Game View
window to different values. It can be used to test how your game
will look on monitors with different aspect ratios.
• Further to the right is the Maximize on Play toggle. While enabled,
the Game View will maximize itself to 100% of your Editor Window
for a nice full-screen preview when you enter Play mode.
• Continuing to the right is the Gizmos toggle. While enabled, all
Gizmos that appear in Scene View will also be drawn in Game View.
This includes Gizmos drawn using any of the Gizmos class functions.
• Finally we have the Stats button. This shows Rendering Statistics
window that is very useful for Optimizing Graphics Performance.

18. Inspector

19. Inspector
• Games in Unity are made up of multiple GameObjects that contain
meshes, scripts, sounds, or other graphical elements like Lights. The
Inspector displays detailed information about your currently
selected GameObject, including all attached Components and their
properties. Here, you modify the functionality of GameObjects in
your scene. Later we will discuss more about about the
GameObject-Component relationship.
• Any property that is displayed in the Inspector can be directly
modified. Even script variables can be changed without modifying
the script itself. You can use the Inspector to change variables at
runtime to experiment and find the magic gameplay for your game.
In a script, if you define a public variable of an object type (like
GameObject or Transform), you can drag and drop a GameObject or
Prefab into the Inspector to make the assignment.

20. Inspector
Assigning script variable in
the inspector window
Click the question mark beside any
Component name in the Inspector to
load its Component Reference page.
Please view the Component Reference
for a complete and detailed guide to all
of Unity's Components.

21. Inspector
• Use the Layer drop-down to assign a rendering Layer to the
GameObject. Use the Tag drop-down to assign a Tag to this
GameObject.

22. Other Views
• The Console shows logs of messages, warnings, and
errors.
• The Animation View can be used to animate objects in
the scene.
• The Profiler can be used to investigate and find the
performance bottle-necks in your game.
• The Asset Server View can be used to manage version
control of the project using Unity's Asset Server.
• The Lightmapping View can be used to manage
lightmaps using Unity's built-in lightmapping.
• The Occlusion Culling View can be used to manage
Occlusion Culling for improved performance.

23. Customizing Your Workspace
You can customize your Layout of Views by click-dragging the Tab of any View to one
of several locations. Dropping a Tab in the Tab Area of an existing window will add the
Tab beside any existing Tabs. Alternatively, dropping a Tab in any Dock Zone will add
the View in a new window.

24. Asset Workflow
• Here we'll explain the steps to use a single
asset with Unity. These steps are general and
are meant only as an overview for basic
actions. For the example, we'll talk about
using a 3D mesh.

25. Create Rough Asset
• Use any supported 3D modeling package to create a rough version of your
asset. Our example will use Maya. Work with the asset until you are ready
to save. For a list of applications that are supported by Unity:
• Maya
• Cinema 4D
• 3ds Max
• Cheetah3D
• Modo
• Lightwave
• Blender
• Other applications: unity can read .FBX, .dae, .3DS, .dxf and .obj files, so if
your program can export to this format you're home free. FBX exporters
for popular 3D packages can be found here. Many packages also have a
Collada exporter available.

26. Import
• When you save your asset initially, you should save it normally to
the Assets folder in your Project folder.
• When you open the Unity project, the asset will be detected and
imported into the project. When you look in the Project View, you'll
see the asset located there, right where you saved it.
• Note that Unity uses the FBX exporter provided by your modeling
package to convert your models to the FBX file format. You will
need to have the FBX exporter of your modeling package available
for Unity to use.
• Alternatively, you can directly export as FBX from your application
and save in the Projects folder. For a list of applications that are
supported by Unity, please see this page.

27. Adding Asset to the Scene
• Simply click and drag the mesh from the
Project View to the Hierarchy or Scene View to
add it to the Scene. When you drag a mesh to
the scene, you are creating a GameObject that
has a Mesh Renderer Component.
• If you are working with a texture or a sound
file, you will have to add it to a GameObject
that already exists in the Scene or Project.

28. Putting Different Assets Together
• Here is a brief description of the relationships
between the most common assets
– A Texture is applied to a Material
– A Material is applied to a GameObject (with a
Mesh Renderer Component)
– An Animation is applied to a GameObject (with an
Animation Component)
– A sound file is applied to a GameObject (with an
Audio Source Component)

29. Creating a Prefab
• Prefabs are a collection of GameObjects & Components
that can be re-used in your scenes. Several identical objects
can be created from a single Prefab, called instancing.
• Take trees for example. Creating a tree Prefab will allow you
to instance several identical trees and place them in your
scene. Because the trees are all linked to the Prefab, any
changes that are made to the Prefab will automatically be
applied to all tree instances. So if you want to change the
mesh, material, or anything else, you just make the change
once in the Prefab and all the other trees inherit the
change. You can also make changes to an instance, and
choose GameObject->Apply Changes to Prefab from the
main menu. This can save you lots of time during setup and
updating of assets.

30. Creating a Prefab
• When you have a GameObject that contains multiple
Components and a hierarchy of child GameObjects,
you can make a Prefab of the top-level GameObject (or
root), and re-use the entire collection of GameObjects.
• Think of a Prefab as a blueprint for a structure of
GameObjects. All the Prefab clones are identical to the
blueprint. Therefore, if the blueprint is updated, so are
all the clones. There are different ways you can update
the Prefab itself by changing one of its clones and
applying those changes to the blueprint. We will
explain more about this in Prefabs page.

31. Creating Prefab
• To create a Prefab from a GameObject in your
scene
• Create a new Prefab in your Project View.
• Name the new Prefab whatever you like.
• Click on the Game Object in the scene that you
want to make into a Prefab. Drag it to the new
Prefab
• You should see the Game Object's name text turn
blue.
• You have now created a re-usable prefab.

32. Updating Assets
• You have imported, instantiated, and linked your asset to a
Prefab.
• Now when you want to edit your source asset, just double-
click it from the Project View.
• The appropriate application will launch, and you can make
any changes you want.
• When you're done updating it, just Save it.
• Then, when you switch back to Unity, the update will be
detected, and the asset will be re-imported.
• The asset's link to the Prefab will also be maintained.
• So the effect you will see is that your Prefab will
update.That's all you have to know to update assets. Just
open it and save!

33. Creating Scenes
• Scenes contain the objects of your game.
• They can be used to create a main menu,
individual levels, and anything else.
• Think of each unique Scene file as a unique
level.
• In each Scene, you will place your
environments, obstacles, and decorations,
essentially designing and building your game
in pieces.

34. Instancing Prefabs
• Once you've created a Prefab, you can quickly
and easily make copies of the Prefab, called an
Instance.
• To create an instance of any Prefab, drag the
Prefab from the Project View to the Hierarchy
or Scene View.
• Now you have a unique instance of your
Prefab to position and tweak as you like.

35. Adding Component & Scripts
• When you have a Prefab or any GameObject highlighted,
you can add additional functionality to it by using
Components.
• Scripts are a type of Component.
• To add a Component, just highlight your GameObject and
select a Component from the Component menu. You will
then see the Component appear in the Inspector of the
GameObject. Scripts are also contained in the Component
menu by default.
• If adding a Component breaks the GameObject's
connection to its Prefab, you can always use GameObject-
>Apply Changes to Prefab from the menu to re-establish
the link.

36. Placing GameObjects
• Once your GameObject is in the scene, you
can use the Transform Tools to position it
wherever you like.
• Additionally, you can use the Transform values
in the Inspector to fine-tune placement and
rotation.

37. Working with Cameras
• You can position, rotate, and parent cameras just like
any other GameObject.
• A camera is just a GameObject with a Camera
Component attached to it.
• Therefore it can do anything a regular GameObject can
do, and then some camera-specific functions too.
• There are also some helpful Camera scripts that are
installed with the standard assets package when you
create a new project. You can find them in
Components->Camera-Control from the menu.

38. Lights
• Except for some very few cases, you will always
need to add Lights to your scene.
• There are three different types of lights, and all of
them behave a little differently from each other.
The important thing is that they add atmosphere
and ambience to your game.
• Different lighting can completely change the
mood of your game, and using lights effectively
will be an important subject to learn.

39. Publishing Builds
• At any time while you are creating your game,
you might want to see how it looks when you
build and run it outside of the editor as a
standalone or web player.
• Next we will explain how to access the Build
Settings and how to create different builds of
your games.

40. Publishing Builds
• File->Build Settings... is the menu item to access the
Build Settings window. It pops up an editable list of the
scenes that will be included when you build your
game.

41. Publishing Builds
• Games developed with unity may be deployed
to:
• Desktop
– Web Player Streaming
– Offline webplayer deployment
– Building standalone players
• Android