Getting Started with Unity for Begginer

Getting Started with Unity

Follow Me Name︓Takashi Yoshinaga Twitter︓@Tks_Yoshinaga @Taka_Yoshinaga LinkedIn︓ https://www.linkedin.com /in /tks-yoshinaga /

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Goal Of the Tutorial https://youtu.be/zD0A1vdmQM8

• https://youtu.be/zD0A1vdmQM8

Launch Unity Hub Unity Hub

Create Project (1/6) ①Projects ②New Project

Create Project (2/6) Click here

Create Project (3/6) 2021.3.X

Create Project (4/6) 3D

Create Project (5/6) Project name (e.g., AR_Test) Create Project

Create Project (6/6) Unity Editor is launched.

Overview of Unity Editor Scene Object List Placing objects to design virtual environment List of folders and files in the project

Add Object With nothing selected Right-click on a blank space in the Hierarchy

Add Object ①3D Object ②Cube

Add Object Cube is addec

Add Object Let's check the view from the camera.

Play Play

Play Displayed from the camera's point of view

Stop Click Play button again to stop

注意︕︕ You can edit in Unity while it is running, but if you stop running, all edits will be discarded. Always stop execution before returning to editing!

Next Step Change the position, angle, and size of objects!

Edit Position/Angle/Size of Object① Cube

Edit Position/Angle/Size of Object① Select a mode Move Rotate Scale

Change the viewpoint of the Scene [←][→]: Move Right/Left [↑][↓]: Move Forward/Back Alt/option + Drag: Rotate

Edit Position/Angle/Size of Object② Cube

Edit Position/Angle/Size of Object② Inspector (≒Property of a object)

Edit Position/Angle/Size of Object② Set params as below Position 0 5 0 Rogation 0 0 0 Scale 1 1 1

Edit Position/Angle/Size of Object② Cube may not be visible in some view settings.

Edit Position/Angle/Size of Object② Double Click Cube

Edit Position/Angle/Size of Object② Cube will be shown at the center of scene pane

Edit Position/Angle/Size of Object② Press the [↓] key to observe from a slightly distant viewpoint

Edit Position/Angle/Size of Object② Easier to see the positional relationship between the camera and the object.

Next Step Let's change the color of an object!

⾊の設定について Cube

About Color Settings Inspector See Mesh Renderer

About Color Settings Open Materials Default-Material assigned with default color already set *Unity uses materials to set colors and textures.

About Color Settings Material details can be viewed at the bottom of Inspector, but DefaultMaterial is not editable.

Next Step Let's create editable materials!

Creating Materials Project Assets

Creating Materials Right Click

Creating Materials ①Create ②Material

Creating Materials New Material is created

Applying Material Click Cube

Applying Material MeshRenderer See Default-Material assigned to Materials

Applying Material Drag & drop over Default-Material See New Material (do not click)

Applying Material New Material Click ▷ to see details

Applying Material Click □ at the right of Albedo

Applying Material Select a color as you like (Close the window after color selection)

Next Step Let's add new details about an object e.g.: Apply physical laws

Applying Physical Law Cube Add Component

Applying Physical Law Adding new component allows you to add details that are not set by default

Applying Physical Law Physics

Applying Physical Law Rigidbody

Applying Physical Law Rigidbody is added If Use Gravity is checked, it will be affected by gravity.

Play Play

Applying Physical Law Cube will fall

Stop Click Play again to stop

Next Step Interaction between objects

Adding Object to the Scene Right Click inside Hierarchy

Adding Object to the Scene 3D Object Plane

Adding Object to the Scene Plane is added

Adding Object to the Scene Plane

Adding Object to the Scene Set Position as 0 0 0

Adding Object to the Scene Select Rotate Mode

Adding Object to the Scene Tilt slightly toward the camera.

Play Cube rolls down

Next Step Realize user interactions with C# script! e.g.: Screen click/tap

Mouse Click/Screen Tap Detection Right Click inside Hierarchy

Mouse Click/Screen Tap Detection Create Empty

Mouse Click/Screen Tap Detection Rename to ClickObject *Any name is acceptable.

Mouse Click/Screen Tap Detection Add Component

Mouse Click/Screen Tap Detection Clear text box New script

Mouse Click/Screen Tap Detection Change Script name to ClickScript *Any name is acceptable. Create and Add

Mouse Click/Screen Tap Detection ClickScript is added

Mouse Click/Screen Tap Detection Assets Double click to open ClickScript

Mouse Click/Screen Tap Detection public class ClickScript : MonoBehaviour { // Start is called before the first frame update void Start() { } // Update is called once per frame void Update() { } }

Mouse Click/Screen Tap Detection // Start is called before the first frame update void Start() { } // Update is called once per frame Check for mouse void Update() click every frame { if (Input.GetMouseButtonDown(0)) { Debug.Log("Click!"); } }

Ctrl/Command + S To Save Script

Mouse Click/Screen Tap Detection Console

Play Playボタン

Mouse Click/Screen Tap Detection Click Screen Results are shown

Stop Click Play again to stop

Next Step Let's generate objects dynamically! e.g.: Throwing a Cube by clicking on the screen

Generate Box Dynamically Cube placed in Hierarchy already exists in space → Instead, I want to make it appear in space when the screen is clicked

Generate Box Dynamically Project

Generate Box Dynamically Cube

Generate Box Dynamically Drag & Drop Cube into Assets Folder Assets

Generate Box Dynamically A file with information about Cube with physics applied is created

Generate Box Dynamically Make a Cube appear in space from a script using data described in a file

Generate Box Dynamically // Link variables with Cube file [SerializeField] GameObject cube; void Start() { } // 毎フレーム実⾏される void Update() { if (Input.GetMouseButtonDown(0)) { Debug.Log("Click!"); } }

Generate Box Dynamically
// 毎フレーム実⾏される
void Update()
{
if (Input.GetMouseButtonDown(0))
{
Debug.Log("Click!");
//Generate box in the scene
GameObject obj = GameObject.Instantiate(cube);
//Acquire main camera to use its position
Camera cam = Camera.main;
//Set camera position as default position of the cube
obj.transform.position = cam.transform.position;
//Add force to shoot cube from camera
obj.GetComponent<Rigidbody>().AddForce(
10 * cam.transform.forward, ForceMode.Impulse);
}
}

Ctrl/Command + S To Save the Script

Generate Box Dynamically ClickObject

Generate Box Dynamically Drag & Drop Cube File into the right box of Cube variable Cube File

Play Play

Play Cube can be shoot form camera

Stop Click Play again to stop

Next Step Let's realize delayed processing! e.g.: Delete Cube after 10 seconds

Automatic Deletion of Cube Cube

Automatic Deletion of Cube Add Component

Automatic Deletion of Cube New script

Automatic Deletion of Cube Set script name as AutoDestroy Create and Add

Automatic Deletion of Cube AutoDestroy is added

Automatic Deletion of Cube Double Click AutoDestroy to edit

Cube Destroy Coroutine public class AutoDestroy : MonoBehaviour { void Start() { StartCoroutine(DestroyWithDelay()); } IEnumerator DestroyWithDelay() { // Erase itself after 10 seconds yield return new WaitForSeconds(10); Destroy(gameObject); } } void Update() { }

Ctrl/Command + S To Save the Script

Play Play Button

Play Cube disappears after a certain time.

Stop Click Play again to stop

Complete!