Cube Rotation - MR Tutorial for Nreal light

Sample Repository

• mr-tutorials-for-nreal-light/CubeRotation at main · karad/mr-tutorials-for-nreal-light

Run the sample

1. Clone Sample Repository, Change current directory to CubeRotation. And Open with Unity.
2. (If you don't have NRSDK) Download NRSDK 1.7.0 from https://nreal-public.nreal.ai/download/NRSDKForUnityAndroid_1.7.0.unitypackage
3. Open Build Setting, change Platform to Android
4. Open Project, select Assets > import package > Custom Package and import NRSDKForUnityAndroid_1.7.0.unitypackage.
5. Check Build Settings > Player Settings by referring to Configure Build Settings
6. Press Build form Build Settings panel
7. Install *.apk on Android or DevKit.

Tutorial

1. Setting up the project for Nreal development

1. See Quickstart for Android - NRSDK Documentation and configure the build settings.
2. (If you don't have NRSDK) Download NRSDK 1.7.0 from https://nreal-public.nreal.ai/download/NRSDKForUnityAndroid_1.7.0.unitypackage
3. Open Project, select Assets > import package > Custom Package and import NRSDKForUnityAndroid_1.7.0.unitypackage.

2. Put a Canvas in the scene

1. Put Canvas from Create > UI
2. Set property on Inspector panel
   1. Render Mode : World Space
   2. Pos X : 0 , Pos Y : -0.35 Pos Z : 3
   3. Scale
      1. X : 0.005 , Y : 0.005 , Z : 0.005

3. Put Text in Canvas

1. Put Text as a child of Canvas
   1. Pos X : 0, Pos Y : -30, Pos Z : 3
2. Change Text to “Rotate Cube” on Inspector panel.
3. Change Color to “FFFFFF” on Inspector panel.

4. Create C# Script in Assets

1. Create C# Script in the asset with the file name "RotateButton.cs".
2. Write the code as follows

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;

public class RotateButton : MonoBehaviour, IPointerUpHandler, IPointerDownHandler
{
    /// <summary>
    /// Target Object
    /// </summary>
    public GameObject TargetCube;

    /// <summary>
    /// Rotation Type
    /// </summary>
    public RotationTypeEnum RotationType;

    /// <summary>
    /// Number of rotations at a time
    /// </summary>
    private static readonly int ROTATE = 1;

    /// <summary>
    /// Press flag
    /// </summary>
    private bool isPressed = false;

    /// <summary>
    /// Rotation Type Enum
    /// </summary>
    public enum RotationTypeEnum
    {
        LEFT,
        RIGHT
    }

    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        if (isPressed)
        {
            if (RotationType == RotationTypeEnum.RIGHT)
            {
                TargetCube.transform.Rotate(new Vector3(0, ROTATE, 0));
            }
            else if (RotationType == RotationTypeEnum.LEFT)
            {
                TargetCube.transform.Rotate(new Vector3(0, -ROTATE, 0));
            }
        }
    }

    /// <summary>
    /// Pointer up event handler
    /// </summary>
    /// <param name="eventData"></param>
    public void OnPointerUp(PointerEventData eventData)
    {
        isPressed = false;
    }

    /// <summary>
    ///  Pointer down event handler
    /// </summary>
    /// <param name="eventData"></param>
    public void OnPointerDown(PointerEventData eventData)
    {
        isPressed = true;
    }
}

5. Put Cube in the Scene

1. Put Cube in the Scene
   1. Change name to “RotatableCube”
   2. Pos X : 0, Pos Y : 0, Pos Z : 8

6. Put “Rotate Right” Button in Canvas

1. Put Button as a child of Canvas
   1. Pos X : 60, Pos Y : 0, Pos Z : 0
   2. Width : 100
2. Change Text to “Rotate Right” from nested Text.
3. Attach the RotateButton.cs on Inspector panel.
   1. Set Target Cube to RotatableCube you just created.
   2. Set Rotation Type to RIGHT.

7. Put “Rotate Left” Button in Canvas

1. Put Button as a child of Canvas
   1. Pos X : -60, Pos Y : 0, Pos Z : 0
   2. Width : 100
2. Change Text to “Rotate Left” from nested Text.
3. Attach the RotateButton.cs on Inspector panel.
   1. Set Target Cube to RotatableCube you just created.
   2. Set Rotation Type to LEFT.

8. Build

1. Press Build form Build Settings panel
2. Install *.apk on Android or DevKit.