![](/img/trans.png)
[英]load obj and mtl file by three.js OBJMTLLoader.js causes memory leak after multi-times load
[英]Rotating .obj file OBJMTLLoader three.js
我将OBJMTLLoader类用于一个obj文件,并且通过使用object.rotation.y -= 0.5
围绕对象上的固定点进行了很好的旋转。 使用相同的代码(减去更改摄像机的位置),我用另一个替换了.obj文件,并且旋转现在以圆周运动进行,就像围绕摄像机而不是固定在原地。 任何想法为什么当我使用相同的代码?
谢谢
编辑:
var OBJLoaded;
function init()
{
container = document.getElementById('player');
camera = new THREE.PerspectiveCamera(45, window.innerWidth/window.innerHeight, 1, 2000);
camera.position.x = 110;
camera.position.z = -160;
camera.position.y = 15;
// camera.position.z = 40;
// camera.position.y = 2;
//scene
scene = new THREE.Scene();
var ambient = new THREE.AmbientLight( 0x444444 );
scene.add( ambient );
var directionalLight = new THREE.DirectionalLight( 0xffffff );
directionalLight.position.set( 100, 90, 200 );
scene.add( directionalLight );
//model
var loader = new THREE.OBJMTLLoader();
//loader.load('./assets/Stereo_LowPoly.obj', './assets/Stereo_LowPoly.mtl', function(object)
loader.load('./assets/studio_beats.obj', './assets/studio_beats.mtl', function(object)
{
OBJLoaded = object;
console.log(object);
scene.add( object );
});
renderer = new THREE.WebGLRenderer({alpha: true});
renderer.setClearColor(0x000000, 0);
renderer.setSize($('#player').width(), $('#player').height());
container.appendChild(renderer.domElement);
scene.add(camera);
}
function animateBoombox()
{
requestAnimationFrame(animateBoombox);
render();
}
function render()
{
var rotSpeed = 0.004;
if (OBJLoaded)
{
OBJLoaded.rotation.y -= rotSpeed;
}
renderer.render(scene, camera);
}
注释的零件(相机和对象加载)适用于先前加载的对象。 效果很好,但未注释的部分效果不同。
您加载的对象有一个来自模型创建器软件的枢轴点...您需要先更改对象的枢轴点,然后再用three.js加载它。
如果不能,则应像我在加载程序回调中一样:
var loader = new THREE.OBJMTLLoader();
loader.load('your_file.obj', 'your_file.mtl', function (object) {
object.traverse(function (child) {
child.centroid = new THREE.Vector3();
for (var i = 0, l = child.geometry.vertices.length; i < l; i++) {
child.centroid.add(child.geometry.vertices[i].clone());
}
child.centroid.divideScalar(child.geometry.vertices.length);
var offset = child.centroid.clone();
child.geometry.applyMatrix(new THREE.Matrix4().makeTranslation(-offset.x, -offset.y, -offset.z));
child.position.copy(child.centroid);
child.geometry.computeBoundingBox();
});
});
然后旋转你的物体...
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.