3D obj Three js 在任何轴上的循环旋转 [英] Loop Rotation on any axis for a 3D obj Three js
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问题描述
我试图制作一个导入的 3d 对象,使其在任何轴上连续旋转,如经典立方体、球体等.但它不起作用,根本不动,我不明白为什么.代码如下:
I trying to make a an imported 3d object to rotate continuously on any axis like a classic cube, sphere etc.. But it don't work, not moving at all and I don't understand why. Here is the code:
var scene6, camera6, renderer6, light, shipMtl, shipObj;
function init() {
scene6 = new THREE.Scene();
camera6 = new THREE.PerspectiveCamera(35, 1, 1, 1000);
camera6.position.z = 400;
//LIGHTS
light = new THREE.PointLight(0xffffff, 2, 0);
light.position.set(200, 100, 300);
scene6.add(light);
//3D MODEL
shipMtl = new THREE.MTLLoader();
shipMtl.load('../models/spaceCraft1.mtl', function(materials) {
materials.preload();
shipObj = new THREE.OBJLoader();
shipObj.setMaterials(materials);
shipObj.load('../models/spaceCraft1.obj', function(object) {
object.scale.set(10, 10, 10);
object.rotation.x += .01;
scene6.add(object);
});
});
renderer6 = new THREE.WebGLRenderer({ canvas: document.getElementById('model'), antialias: true });
renderer6.setClearColor(0x000000);
renderer6.setPixelRatio(window.devicePixelRatio);
animate6();
}
function animate6() {
requestAnimationFrame(animate6);
renderer6.render(scene6, camera6);
}
window.onload = init;
感谢您的帮助.
推荐答案
对象的旋转仅更改一次:加载模型时.
The rotation of your object is only changed once : when the model is loaded.
如果你想连续旋转它,你需要更新它的旋转每一帧.因此,您应该在 animate()
函数内移动 object.rotation.x += 0.01
行.
If you want to continuously rotate it, you need to update its rotation every frame. Therefore, you should move the object.rotation.x += 0.01
line inside the animate()
function.
var scene6, camera6, renderer6, light, shipMtl, shipObj;
var obj; // global reference to your model, once loaded
function init() {
scene6 = new THREE.Scene();
camera6 = new THREE.PerspectiveCamera(35, 1, 1, 1000);
camera6.position.z = 400;
//LIGHTS
light = new THREE.PointLight(0xffffff, 2, 0);
light.position.set(200, 100, 300);
scene6.add(light);
//3D MODEL
shipMtl = new THREE.MTLLoader();
shipMtl.load('../models/spaceCraft1.mtl', function(materials) {
materials.preload();
shipObj = new THREE.OBJLoader();
shipObj.setMaterials(materials);
shipObj.load('../models/spaceCraft1.obj', function(object) {
object.scale.set(10, 10, 10);
// no need to change the rotation here
obj = object; // put your object as global
scene6.add(object);
});
});
renderer6 = new THREE.WebGLRenderer({ canvas: document.getElementById('model'), antialias: true });
renderer6.setClearColor(0x000000);
renderer6.setPixelRatio(window.devicePixelRatio);
animate6();
}
function animate6() {
requestAnimationFrame(animate6);
obj.rotation.x += 0.01;
renderer6.render(scene6, camera6);
}
window.onload = init;
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