[英]three.js pointLight changes from r.67 to r.68
點光源與飛機之間的相互作用似乎已從r.67更改為r.68
我正在嘗試學習一歲的一本書,來學習three.js。 我已將教程示例簡化為一個平面,一個立方體和一個點光源,並且當我使用r.68(即光效果教程的重點)時,平面上的燈光的“發光”效果消失了。 我猜想它現在一定與平面的材料反射率有關嗎?
我沒有獲得任何線索來了解three.js github修訂說明或功能源代碼的歷史或類似的當前three.js示例,但我的three.js新秀狀態可能使我無法尋找所需信息。
如果有人可以解釋發生了什么變化以及為什么它不起作用,我很樂意將此破損的教程變成一種學習體驗。
編輯以添加示例替代源
這是r.68:
http://jsfiddle.net/nnu3qnq8/5/
這是r.67:
http://jsfiddle.net/nnu3qnq8/4/
碼:
$(function () {
var stats = initStats();
// create a scene, that will hold all our elements such as objects, cameras and lights.
var scene = new THREE.Scene();
// create a camera, which defines where we're looking at.
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
// create a render and set the size
var renderer = new THREE.WebGLRenderer();
renderer.setClearColorHex(0xEEEEEE, 1.0);
renderer.setSize(window.innerWidth, window.innerHeight);
// create the ground plane
var planeGeometry = new THREE.PlaneGeometry(60, 20, 1, 1);
var planeMaterial = new THREE.MeshLambertMaterial({color: 0xffffff});
var plane = new THREE.Mesh(planeGeometry, planeMaterial);
// rotate and position the plane
plane.rotation.x = -0.5 * Math.PI;
plane.position.x = 15
plane.position.y = 0
plane.position.z = 0
// add the plane to the scene
scene.add(plane);
// create a cube
var cubeGeometry = new THREE.BoxGeometry(4, 4, 4);
var cubeMaterial = new THREE.MeshLambertMaterial({color: 0xff7777});
var cube = new THREE.Mesh(cubeGeometry, cubeMaterial);
cube.castShadow = true;
// position the cube
cube.position.x = -4;
cube.position.y = 3;
cube.position.z = 0;
// add the cube to the scene
scene.add(cube);
// position and point the camera to the center of the scene
camera.position.x = -25;
camera.position.y = 30;
camera.position.z = 25;
camera.lookAt(new THREE.Vector3(10, 0, 0));
// add subtle ambient lighting
var ambiColor = "#0c0c0c";
var ambientLight = new THREE.AmbientLight(ambiColor);
scene.add(ambientLight);
// add spotlight for the shadows
// add spotlight for the shadows
var spotLight = new THREE.SpotLight(0xffffff);
spotLight.position.set(-40, 60, -10);
spotLight.castShadow = true;
// scene.add( spotLight );
var pointColor = "#ccffcc";
var pointLight = new THREE.PointLight(pointColor);
pointLight.distance = 100;
pointLight.position = new THREE.Vector3(3, 5, 3);
scene.add(pointLight);
// add the output of the renderer to the html element
$("#WebGL-output").append(renderer.domElement);
// call the render function
var step = 0;
// used to determine the switch point for the light animation
var invert = 1;
var phase = 0;
var controls = new function () {
this.rotationSpeed = 0.03;
this.ambientColor = ambiColor;
this.pointColor = pointColor;
this.intensity = 1;
this.distance = 100;
}
var gui = new dat.GUI();
gui.addColor(controls, 'ambientColor').onChange(function (e) {
ambientLight.color = new THREE.Color(e);
});
gui.addColor(controls, 'pointColor').onChange(function (e) {
pointLight.color = new THREE.Color(e);
});
gui.add(controls, 'intensity', 0, 3).onChange(function (e) {
pointLight.intensity = e;
});
gui.add(controls, 'distance', 0, 100).onChange(function (e) {
pointLight.distance = e;
});
render();
function render() {
stats.update();
// move the light simulation
if (phase > 2 * Math.PI) {
invert = invert * -1;
phase -= 2 * Math.PI;
} else {
phase += controls.rotationSpeed;
}
pointLight.position.z = +(7 * (Math.sin(phase)));
pointLight.position.x = +(14 * (Math.cos(phase)));
if (invert < 0) {
var pivot = 14;
pointLight.position.x = (invert * (pointLight.position.x - pivot)) + pivot;
}
// render using requestAnimationFrame
requestAnimationFrame(render);
renderer.render(scene, camera);
}
function initStats() {
var stats = new Stats();
stats.setMode(0); // 0: fps, 1: ms
// Align top-left
stats.domElement.style.position = 'absolute';
stats.domElement.style.left = '0px';
stats.domElement.style.top = '0px';
$("#Stats-output").append(stats.domElement);
return stats;
}
});
您正在使用不再受支持的模式。
pointLight.position = new THREE.Vector3( 3, 5, 3 );
不要創建新對象。 而是這樣做:
pointLight.position.set( 3, 5, 3 );
three.js r.68
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.