Explore the Editor Interface
Review
Add an instance of a prefab to a scene by dragging the prefab from the Project window. Use the Transform component to position a GameObject.
Make a bouncy ball
Review
Add a 3D primitive to a scene. Describe the default characteristics of a primitive. Make a new material in the Project window. Explain the attributes a material adds to a GameObject. Assign a material to a GameObject by dragging it from the Project window into Scene view. Change the basic properties of a material. Add a component to a GameObject via the Inspector window. Explain the attributes that a Rigidbody component adds to a GameObject. Make a new Physics Material in the project window. Explain the attributes a Physics Material adds to a GameObject. Identify specific components in the Inspector window.
Make a tower of prefab blocks
Review
Reset the Transform component to reposition an object at the origin. Scale objects with the Scale tool. Explain how to use prefabs in a scene. Make a new prefab from an existing GameObject in a scene. Identify a prefab instance in the Hierarchy window. Switch the tool handle position of a GameObject between Center and Pivot. Edit a prefab in prefab mode. Assign a material to a GameObject by changing the Mesh Renderer component. Make an empty GameObject as a parent for other GameObjects. Arrange GameObjects in parent-child relationships using the Hierarchy window.
Adjust the lights, background, and camera angle
Review
Position the Main Camera in order to achieve the desired framing of the scene. Adjust the camera’s field of view. Align a camera’s view to the Scene view with a keyboard shortcut. Adjust the Directional Light to convey the time of day. Edit the skybox to change the setting of the scene. Adjust the Play mode tint to make it obvious when Play mode is running.
3D Essentials: More things to try
Review
A vertex (plural: vertices) is a point in where the edges of shapes meet — like a corner. In Unity, vertex snapping is a feature that allows you to perfectly align the vertices of different GameObjects to one another by snapping them together. Hold down the V key on your keyboard while you left-click one of the bottom vertices of a block you want to put on top of another.
Quizz
Question 1
What is a prefab? Select the one correct answer.
| Answers | Correct |
|---|---|
| The Project window displays a list of the files and assets available to use A reusable asset that allows you to store a GameObject complete with components and properties. | True |
| A tool in Unity that allows developers to write and compile scripts directly within the Editor. | False |
| A window layout preset that focuses on editing individual GameObjects. | False |
| A special type of camera in Unity used for rendering 3D environments in a 2D perspective. | False |
Question 2
When you add a primitive 3D shape to your Unity scene, what happens? Select the two correct answers.
| Answers | Correct |
|---|---|
| A primitive 3D shape is added to the scene with a collider component attached, allowing it to interact with other physics objects. | True |
| Each primitive 3D shape automatically includes a Rigidbody component for physics-based movement and interactions. | False |
| The object is placed at the origin of the scene (X=0, Y=0, Z=0). | False |
| The shape appears with a default gray material, giving it a basic appearance until further customization. | True |
Question 3
Which of the following best describes the process for creating a new blue material in Unity? Select the one correct answer.
| Answers | Correct |
|---|---|
| Directly in the Scene view, right-click a GameObject, select Material > New Material, and set its color to blue using the Inspector window. | False |
| Right-click in the Hierarchy window, select Create > Blue Material, and the material is automatically added to your project with the default blue color. | False |
| From the Project window, select Create > Material, then in the Inspector window, use the Color picker (⊙) to change the material’s color to blue. | True |
| Enter Play mode, then generate a new material by pressing Ctrl+M (macOS: Cmd+M). | False |
Question 4
Which of the following are true about Unity’s built-in components? Select the three correct answers.
| Answers | Correct |
|---|---|
| A Mesh collider component matches the shape of the object’s mesh, allowing for detailed collision detection. | True |
| The Mesh Renderer component determines the appearance of a GameObject, but it does not affect the object’s physical properties or interactions. | True |
| The Transform component allows a GameObject to transform into any other GameObject when Spacebar is pressed. It is optional for all GameObjects. | False |
| The Rigidbody component adds physics properties to a GameObject, allowing it to react to forces and collisions within the game environment. | True |
Question 5
What happens when you move and rotate the Directional Light in a scene? Select the one correct answer.
| Answers | Correct |
|---|---|
| Rotating the Directional Light changes the direction of shadows and lighting in the scene, but moving it does not have any effect on the lighting. | True |
| Moving the Directional Light closer to objects makes them brighter, while rotating it affects the color temperature of the scene. | False |
| Moving and rotating the Directional Light will change the color of the light, affecting the mood of the scene. | False |