Creating prototypes

Unity course:

Unity LearnUnity Learn

360° video

1. Create a folder Editor with the script : "InvertedSphere". This sphere will blend a movie inside the sphere.

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


using UnityEditor;

public class InvertedSphere : EditorWindow
{
    private string st = "1.0";

    [MenuItem("GameObject/Create Other/Inverted Sphere...")]
    public static void ShowWindow()
    {
        EditorWindow.GetWindow(typeof(InvertedSphere));
    }

    public void OnGUI()
    {
        GUILayout.Label("Enter sphere size:");
        st = GUILayout.TextField(st);

        float f;
        if (!float.TryParse(st, out f))
            f = 1.0f;
        if (GUILayout.Button("Create Inverted Sphere"))
        {
            CreateInvertedSphere(f);
        }
    }

    private void CreateInvertedSphere(float size)
    {
        GameObject go = GameObject.CreatePrimitive(PrimitiveType.Sphere);
        MeshFilter mf = go.GetComponent<MeshFilter>();
        Mesh mesh = mf.sharedMesh;

        GameObject goNew = new GameObject();
        goNew.name = "Inverted Sphere";
        MeshFilter mfNew = goNew.AddComponent<MeshFilter>();
        mfNew.sharedMesh = new Mesh();


        //Scale the vertices;
        Vector3[] vertices = mesh.vertices;
        for (int i = 0; i < vertices.Length; i++)
            vertices[i] = vertices[i] * size;
        mfNew.sharedMesh.vertices = vertices;

        // Reverse the triangles
        int[] triangles = mesh.triangles;
        for (int i = 0; i < triangles.Length; i += 3)
        {
            int t = triangles[i];
            triangles[i] = triangles[i + 2];
            triangles[i + 2] = t;
        }
        mfNew.sharedMesh.triangles = triangles;

        // Reverse the normals;
        Vector3[] normals = mesh.normals;
        for (int i = 0; i < normals.Length; i++)
            normals[i] = -normals[i];
        mfNew.sharedMesh.normals = normals;


        mfNew.sharedMesh.uv = mesh.uv;
        mfNew.sharedMesh.uv2 = mesh.uv2;
        mfNew.sharedMesh.RecalculateBounds();

        // Add the same material that the original sphere used
        MeshRenderer mr = goNew.AddComponent<MeshRenderer>();
        mr.sharedMaterial = go.GetComponent<Renderer>().sharedMaterial;

        DestroyImmediate(go);
    }
}

1. Create a new material e.g. 360Mat. Use the unlit/transparant shader.

2. Create a render texture with the dimensions of the 360 video (3840 x 2160 )

3. Drag the render texture to the created material

4. Add the material to the inverted sphere

5. Add a videoplayer component to the inverted sphere

Following script measures the vr camera rotation and fires an event when a threshold is reached

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

public class ThresholdReachedEventArgs : EventArgs
{
    public int Threshold { get; set; }
    public DateTime TimeReached { get; set; }
}

public class LookAtInVR : MonoBehaviour
{
    // Start is called before the first frame update
    public event EventHandler<ThresholdReachedEventArgs> ThresholdReached;
    public Camera lookAtCamera;
    private Transform t;
    void Start()
    {              
        lookAtCamera = Camera.main;
        print(lookAtCamera);
    }

    // Update is called once per frame
    void Update()
    {
        print(lookAtCamera.transform.eulerAngles.y);
          if(lookAtCamera.transform.eulerAngles.y > 275 && lookAtCamera.transform.eulerAngles.y < 300)
          {
              print("change video");
              ThresholdReachedEventArgs args = new ThresholdReachedEventArgs();
              args.Threshold = 1;
              args.TimeReached = DateTime.Now;
              OnThresholdReached(args);
          }

    }

    protected virtual void OnThresholdReached(ThresholdReachedEventArgs e)
    {        
        if (ThresholdReached != null)
        {
            ThresholdReached(this, e);
        }
    }
}

Following script will listen to the Threshold-event and takes action. The action is a new video on the inside of the inverted sphere.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Video;

public class VideoChanger : MonoBehaviour
{
    private VideoPlayer video;
    public List<string> videos;
    public VideoClip videoToPlay1;
    public VideoClip videoToPlay2;
    public GameObject sphere1;
    public GameObject sphere2;

    private LookAtInVR lookAtInVr;
    public GameObject Environment;

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

        sphere1.GetComponent<VideoPlayer>().Prepare();
        sphere2.GetComponent<VideoPlayer>().Prepare();

        sphere1.GetComponent<VideoPlayer>().prepareCompleted += VideoChanger_prepareCompleted;
       
        lookAtInVr = Environment.GetComponent<LookAtInVR>();
        lookAtInVr.ThresholdReached += LookAtInVr_ThresholdReached;

    }

    private void VideoChanger_prepareCompleted(VideoPlayer source)
    {
        source.Play();
    }

    private void LookAtInVr_ThresholdReached(object sender, ThresholdReachedEventArgs e)
    {
        print(e);
        sphere2.transform.position = new Vector3(0, 0, 0);
        sphere1.transform.position = new Vector3(0, 0, 10);
        sphere1.GetComponent<VideoPlayer>().Stop();
        sphere2.GetComponent<VideoPlayer>().Play();
    }

    
}

Check grip

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.InputSystem;

public class Grip : MonoBehaviour
{
    public InputActionReference grip;
  
    void Start()
    {
        grip.action.performed += Action_performed;        
    }

    private void Action_performed(InputAction.CallbackContext obj)
    {
        print("press grip");
    }   
}

Assign e.g. the xri lefthand interaction / select to in grip public variable.