如何在threejs中添加相机的datgui控件？

Question

我想在本页的基本threejs示例中为threejs相机启用dat-gui控件:

https://github.com/mrdoob/three.js/

var camera, scene, renderer;
var geometry, material, mesh;

init();
animate();

function init() {

    camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 1, 10000 );
    camera.position.z = 1000;

    scene = new THREE.Scene();

    geometry = new THREE.CubeGeometry( 200, 200, 200 );
    material = new THREE.MeshBasicMaterial( { color: 0xff0000, wireframe: true } );

    mesh = new THREE.Mesh( geometry, material );
    scene.add( mesh );

    renderer = new THREE.CanvasRenderer();
    renderer.setSize( window.innerWidth, window.innerHeight );

    document.body.appendChild( renderer.domElement );

}

function animate() {

    // note: three.js includes requestAnimationFrame shim
    requestAnimationFrame( animate );

    mesh.rotation.x += 0.01;
    mesh.rotation.y += 0.02;

    renderer.render( scene, camera );

}

我试过以下代码:

var params = {
    z: 100
}

var gui = new dat.GUI();

gui.add(params, 'z', -500,500).step(5).onChange(function(value){
        changeCameraZ(value);
    });
function changeCameraZ(value){
    camera.position.z = value;
}

哪个有效,但这意味着我必须编写一个新函数: changeBlah();

对于每个three.js变量,我希望从GUI更改.是否有更好,更清洁的方法来实现这一目标？

Answer 1

您还可以使用DAT.gui如何使用引用.

gui.add( camera.position , 'z', -500, 500 ).step(5)

和一个例子

http://jsfiddle.net/2WKqL/2/