這是一個JS Fiddle,它顯示了我目前的狀態。我想添加一個文字3D/2D並不重要。文本應該隨着白色圓圈的旋轉一起旋轉。只要獲得預期的結果,任何方法都是優選的。這是代碼。將文字添加到three.js中的對象(白色圓圈)
three.js所代碼提前
var SCREEN_WIDTH = window.innerWidth,
SCREEN_HEIGHT = window.innerHeight,
mouseX = 0,
mouseY = 0,
windowHalfX = window.innerWidth/2,
windowHalfY = window.innerHeight/2,
SEPARATION = 200,
AMOUNTX = 100,
AMOUNTY = 10,
camera, scene, renderer;
init();
animate();
function init() {
var container, separation = 100,
amountX = 50,
amountY = 50,
particles, particle;
container = document.createElement('div');
document.body.appendChild(container);
camera = new THREE.PerspectiveCamera(75, SCREEN_WIDTH/SCREEN_HEIGHT, 1, 10000);
camera.position.y = 5800;
camera.position.z = 1000;
scene = new THREE.Scene();
renderer = new THREE.CanvasRenderer({
alpha: true
});
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);
container.appendChild(renderer.domElement);
// particles
var PI2 = Math.PI * 2;
var material = new THREE.SpriteCanvasMaterial({
color: 0xffffff,
program: function (context) {
context.beginPath();
context.arc(0, 0, 9.5, 0, PI2, true);
context.fill();
}
});
for (var i = 0; i < 1000; i++) {
particle = new THREE.Sprite(material);
particle.position.x = Math.random() * 2 - 1;
particle.position.y = Math.random() * 2 - 1;
particle.position.z = Math.random() * 2 - 1;
particle.position.normalize();
particle.position.multiplyScalar(Math.random() * 10 + 450);
particle.scale.multiplyScalar(10);
scene.add(particle);
}
// lines
for (var i = 0; i < 300; i++) {
var geometry = new THREE.Geometry();
var vertex = new THREE.Vector3(Math.random() * 2 - 1, Math.random() * 2 - 1, Math.random() * 2 - 1);
vertex.normalize();
vertex.multiplyScalar(1850);
geometry.vertices.push(vertex);
var vertex2 = vertex.clone();
vertex2.multiplyScalar(Math.random() * 0.3 + 1);
geometry.vertices.push(vertex2);
var line = new THREE.Line(geometry, new THREE.LineBasicMaterial({
color: 0xffffff,
opacity: Math.random()
}));
scene.add(line);
}
document.addEventListener('mousemove', onDocumentMouseMove, false);
document.addEventListener('touchstart', onDocumentTouchStart, false);
document.addEventListener('touchmove', onDocumentTouchMove, false);
//
window.addEventListener('resize', onWindowResize, false);
}
function onWindowResize() {
windowHalfX = window.innerWidth/2;
windowHalfY = window.innerHeight/2;
camera.aspect = window.innerWidth/window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
//
function onDocumentMouseMove(event) {
mouseX = event.clientX - windowHalfX;
mouseY = event.clientY - windowHalfY;
}
function onDocumentTouchStart(event) {
if (event.touches.length > 1) {
event.preventDefault();
mouseX = event.touches[0].pageX - windowHalfX;
mouseY = event.touches[0].pageY - windowHalfY;
}
}
function onDocumentTouchMove(event) {
if (event.touches.length == 1) {
event.preventDefault();
mouseX = event.touches[0].pageX - windowHalfX;
mouseY = event.touches[0].pageY - windowHalfY;
}
}
//
function animate() {
requestAnimationFrame(animate);
render();
}
function render() {
camera.position.x += (mouseX - camera.position.x) * .05;
camera.position.y += (-mouseY + 200 - camera.position.y) * .05;
camera.lookAt(scene.position);
renderer.render(scene, camera);
}
感謝。
「我想補充一個3D/2D文本無關緊要。「 - 這沒有意義 –
:P我是新手,如果聽起來很有趣,我只想在那裏添加一些文字「Hello World」。 –