how to pin 1 point in video360 Threejs?

How to Pin 1 Point in Video360 Three.js?

If you are working with Video360 in Three.js and want to pin a specific point in the video, you have come to the right place. In this blog post, we will explore different solutions to achieve this goal.

Solution 1: Using CSS Positioning

One way to pin a point in Video360 is by using CSS positioning. You can create an HTML element and position it on top of the video using absolute positioning. Here’s an example:


#video-container {
  position: relative;
}

#pin-point {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background-color: red;
  border-radius: 50%;
}

In this example, we have a video element with an ID of “video” inside a container with an ID of “video-container”. We also have a div element with an ID of “pin-point” that will act as our pinned point. By setting its position to absolute and using top, left, and transform properties, we position it in the center of the video. Feel free to adjust the size, color, and shape of the pin-point as per your requirements.

Solution 2: Using Three.js Raycasting

Another way to pin a point in Video360 is by using Three.js raycasting. This solution requires a bit more code but provides more flexibility. Here’s an example:


// Create a Three.js scene
const scene = new THREE.Scene();

// Create a Three.js camera
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.set(0, 0, 0);

// Create a Three.js renderer
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

// Create a Video360 texture
const video = document.getElementById('video');
const videoTexture = new THREE.VideoTexture(video);
videoTexture.minFilter = THREE.LinearFilter;
videoTexture.magFilter = THREE.LinearFilter;
videoTexture.format = THREE.RGBFormat;

// Create a Video360 material
const material = new THREE.MeshBasicMaterial({ map: videoTexture, side: THREE.DoubleSide });

// Create a Video360 geometry
const geometry = new THREE.SphereGeometry(500, 60, 40);
geometry.scale(-1, 1, 1);

// Create a Video360 mesh
const mesh = new THREE.Mesh(geometry, material);
scene.add(mesh);

// Create a raycaster
const raycaster = new THREE.Raycaster();

// Create a mouse vector
const mouse = new THREE.Vector2();

// Add event listener for mouse move
window.addEventListener('mousemove', onMouseMove, false);

function onMouseMove(event) {
  // Calculate normalized device coordinates
  mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
  mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;

  // Update the raycaster
  raycaster.setFromCamera(mouse, camera);

  // Calculate intersections with the Video360 mesh
  const intersects = raycaster.intersectObject(mesh);

  if (intersects.length > 0) {
    // Get the intersection point
    const intersection = intersects[0].point;

    // Do something with the intersection point
    console.log(intersection);
  }
}

// Render the scene
function animate() {
  requestAnimationFrame(animate);
  renderer.render(scene, camera);
}
animate();

In this example, we create a Three.js scene, camera, and renderer as usual. We then create a Video360 texture using the video element and apply it to a Video360 material. Next, we create a Video360 geometry and mesh using the material. The raycaster is used to detect intersections with the Video360 mesh. When the mouse moves, we calculate the normalized device coordinates and update the raycaster. We then check for intersections and retrieve the intersection point. You can customize the code inside the onMouseMove function to perform any actions with the intersection point.

These are two different solutions to pin a point in Video360 Three.js. Choose the one that best suits your needs and integrate it into your project. Happy coding!

how to pin 1 point in video360 Threejs?