Disabling Camera Dampening in a 3D Environment Upon Click

Question

Disabling Camera Dampening in a 3D Environment Upon Click

I am currently working on a project that involves implementing a damping effect for the camera when the user stops rotating it using their mouse. While this effect is important, I also want to provide users with the option to disable the damping effect by clicking on the screen.

I attempted the following code to disable and re-enable the controls and damping in the onClick event:

this.control.enabled = false;
this.control.enableDamping = false;
this.control.update();
this.control.enableDamping = true;
this.control.enabled = true;

Unfortunately, this approach did not behave as expected. When the user clicks to cancel the damping effect, the camera abruptly shifts to a different position, almost as if it is trying to catch up with the latest update.

If anyone has suggestions on how to achieve the desired behavior, I would greatly appreciate it. Thank you!

javascript three.js orbitcontrols

Answer 1

Answer №1

To ensure smooth damping, it is important to update the controls within your rendering loop. By checking if damping is enabled and updating the controls conditionally, you can achieve the desired effect.

The code snippet below demonstrates how to toggle damping with a double click:

import * as THREE from 'three'
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js'

const canvas = document.querySelector('canvas.webgl')

const scene = new THREE.Scene()

const geometry = new THREE.BoxGeometry(1, 1, 1)
const material = new THREE.MeshBasicMaterial({ color: 'lightblue' })
const mesh = new THREE.Mesh(geometry, material)
scene.add(mesh)

const width = 800;
const height = 600;

const camera = new THREE.PerspectiveCamera(75, width / height, 0.1, 10)
camera.position.set(1, 1, 3);
scene.add(camera)

const controls = new OrbitControls(camera, canvas)
controls.enableDamping = true

const renderer = new THREE.WebGLRenderer({
    canvas: canvas
});
renderer.setSize(width, height)
renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2))

const renderLoop = () => {
    if (controls.enableDamping) {
        controls.update()
    }

    renderer.render(scene, camera)

    window.requestAnimationFrame(renderLoop)
}

renderLoop()

canvas.addEventListener('dblclick', () => controls.enableDamping = !controls.enableDamping)

Answer 2

To ensure smooth damping, it is important to update the controls within your rendering loop. By checking if damping is enabled and updating the controls conditionally, you can achieve the desired effect.

The code snippet below demonstrates how to toggle damping with a double click:

import * as THREE from 'three'
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js'

const canvas = document.querySelector('canvas.webgl')

const scene = new THREE.Scene()

const geometry = new THREE.BoxGeometry(1, 1, 1)
const material = new THREE.MeshBasicMaterial({ color: 'lightblue' })
const mesh = new THREE.Mesh(geometry, material)
scene.add(mesh)

const width = 800;
const height = 600;

const camera = new THREE.PerspectiveCamera(75, width / height, 0.1, 10)
camera.position.set(1, 1, 3);
scene.add(camera)

const controls = new OrbitControls(camera, canvas)
controls.enableDamping = true

const renderer = new THREE.WebGLRenderer({
    canvas: canvas
});
renderer.setSize(width, height)
renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2))

const renderLoop = () => {
    if (controls.enableDamping) {
        controls.update()
    }

    renderer.render(scene, camera)

    window.requestAnimationFrame(renderLoop)
}

renderLoop()

canvas.addEventListener('dblclick', () => controls.enableDamping = !controls.enableDamping)

Disabling Camera Dampening in a 3D Environment Upon Click

Answer №1

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