使用 VRControls 时无法更改相机位置

本文介绍了使用 VRControls 时无法更改相机位置的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我有以下代码:

...
camera = new THREE.PerspectiveCamera(75, screenRatio, 1, 10000 );
camera.position.z = -10; // position.set(0, 0, -10) also not working.
controls = new THREE.VRControls( camera );
effect = new THREE.VREffect( renderer );
effect.setSize( window.innerWidth, window.innerHeight );
...

VRControls 与加速度计同步工作，但我无法更改相机位置.它似乎卡在原点(0,0,0).在应用 VRControls 和 VREffect 之前，它运行良好.

VRControls are working in sync with the accelerometer, but I can't change the cameras position. It seems stuck in the origin point (0,0,0). It was working just fine before applying VRControls and VREffect.

推荐答案

从 在 Sechelt 演示中找到了解决方案Mozilla VR 团队演示.我会在这里放一段代码供其他 VR 初学者参考.

Found the solution inside Sechelt demo from Mozilla VR Team demos. I'll put here a code snippet as reference for other VR beginners.

将摄像机添加到组而不是直接更新摄像机位置是移动摄像机的方式.

Adding the camera to a group instead of updating the camera position directly is the way to move the camera.

var scene, renderer, cameraRatio, camera, controls, effect, dolly;

function init() {
    scene = new THREE.Scene();

    renderer = new THREE.WebGLRenderer({ antialias: true });
    renderer.setSize( window.innerWidth, window.innerHeight );
    document.body.appendChild( renderer.domElement );

    cameraRatio = window.innerWidth / window.innerHeight;
    camera = new THREE.PerspectiveCamera( 75, cameraRatio, 1, 1000 );       

    controls = new THREE.VRControls( camera );
    effect = new THREE.VREffect( renderer );
    effect.setSize( window.innerWidth, window.innerHeight );

    // This helps move the camera
    dolly = new THREE.Group();
    dolly.position.set( 0, 0, 0 );
    scene.add( dolly );
    dolly.add( camera );

    ...
    // Of course, there should be lights, objects, etc
}

function animate() {
    dolly.position.x += 0.1;
    controls.update();
    effect.render( scene, camera );
}

init();
animate();

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