In the scenario where I have two models in my scene, I am able to move the camera to various locations within the scene by clicking a button. This is achieved using the following code snippet:
camera.position.set(0, 100, -350); //sets initial camera orbit rotation
controls.target.set(0, 0, 0); //sets orbit location in world
I am now curious if there exists a three.js function that can simulate camera movement between points instead of directly setting the camera position?
If you're facing this challenge, consider utilizing an animation library such as tween.js to address it effectively. While three.js does offer an internal animation system, its low-level API is primarily designed for asset loading purposes.
Take a look at the sample below created using tween.js. Observe how the camera's position smoothly transitions over two seconds and how the onUpdate() callback assists in focusing the camera on the mesh.
var camera, scene, renderer;
var geometry, material, mesh;
init();
animate();
function init() {
camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.01, 10 );
camera.position.z = 1;
var target = new THREE.Vector3( 1, 0, 1 );
new TWEEN.Tween( camera.position )
.to( { x: target.x, y: target.y, z: target.z }, 2000 )
.onUpdate( () => { camera.lookAt( scene.position ); } )
.start();
scene = new THREE.Scene();
geometry = new THREE.BoxBufferGeometry( 0.2, 0.2, 0.2 );
material = new THREE.MeshNormalMaterial();
mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
}
function animate() {
requestAnimationFrame( animate );
TWEEN.update();
renderer.render( scene, camera );
}<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/110/three.min.js"></script>
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