【发布时间】：2021-07-26 22:29:57
【问题描述】：
我正在潜入threejs 的世界。我采用了其中一个示例项目并对其进行了修改。我刚刚添加了一些带有颜色的立方体几何图形。问题是，立方体几何显示没有边缘。你无法区分脸在哪里结束，它都被漂白了。不知道是灯光问题还是材质问题。我的代码如下。
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - cloth simulation</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="main.css">
<style>
body {
background-color: #cce0ff;
color: #000;
}
a {
color: #080;
}
</style>
</head>
<body>
<div id="info">Simple Cabinet Box in 3D Space<br/>
</div>
<script type="module">
import * as THREE from '../build/three.module.js';
//import Stats from './jsm/libs/stats.module.js';
import { GUI } from './jsm/libs/dat.gui.module.js';
import { OrbitControls } from './jsm/controls/OrbitControls.js';
function plane( width, height )
{
return function ( u, v, target )
{
const x = ( u - 0.5 ) * width;
const y = ( v + 0.5 ) * height;
const z = 0;
target.set( x, y, z );
};
}
let container;
let camera, scene, renderer;
init();
animate( 0 );
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
// scene
scene = new THREE.Scene();
scene.background = new THREE.Color( 0xffffff );
// camera
camera = new THREE.PerspectiveCamera( 30, window.innerWidth / window.innerHeight, 1, 10000 );
camera.position.set( 0, 0, 100 );
// lights
//scene.add( new THREE.AmbientLight( 0x666666 ) );
const light = new THREE.DirectionalLight( 0xdfebff, 1 );
light.position.set( 50, 200, 100 );
light.position.multiplyScalar( 1.3 );
light.castShadow = true;
light.shadow.mapSize.width = 1024;
light.shadow.mapSize.height = 1024;
const d = 300;
light.shadow.camera.left = - d;
light.shadow.camera.right = d;
light.shadow.camera.top = d;
light.shadow.camera.bottom = - d;
light.shadow.camera.far = 1000;
scene.add( light );
//cabinet properties
const c_width = 24;
const c_height = 34.5;
const c_depth = 23.125;
const c_left_side_thickness = 0.75;
//Left End
const geometry = new THREE.BoxGeometry( c_left_side_thickness, c_height, c_depth);
const material = new THREE.MeshBasicMaterial( { color: 0xC2B8B6 } );
const left_side = new THREE.Mesh( geometry, material );
left_side.position.set((c_width/2)*-1 + c_left_side_thickness/2,0,0);
const right_side = new THREE.Mesh( geometry, material );
right_side.position.set(c_width/2 - c_left_side_thickness/2,0,0);
const geometry2 = new THREE.BoxGeometry( c_width - c_left_side_thickness * 2, c_left_side_thickness, c_depth);
const bottom = new THREE.Mesh( geometry2, material );
bottom.position.set(0,(c_height/2)*-1 + c_left_side_thickness/2,0);
const top = new THREE.Mesh( geometry2, material );
top.position.set(0,c_height / 2 - c_left_side_thickness/2,0);
const cabinet = new THREE.Group();
cabinet.add( left_side );
cabinet.add( right_side );
cabinet.add( bottom );
cabinet.add( top );
scene.add( cabinet );
//
// const geometry2 = new THREE.BoxGeometry( 10, 10, 10 );
// const edges = new THREE.EdgesGeometry( geometry2 );
// const line = new THREE.LineSegments( edges, new THREE.LineBasicMaterial( { color: 0xffffff } ) );
// line.position.set(0,100,0);
// scene.add( line );
// ground
const loader = new THREE.TextureLoader();
const groundTexture = loader.load( 'textures/terrain/grasslight-big.jpg' );
groundTexture.wrapS = groundTexture.wrapT = THREE.RepeatWrapping;
groundTexture.repeat.set( 25, 25 );
groundTexture.anisotropy = 16;
groundTexture.encoding = THREE.sRGBEncoding;
const groundMaterial = new THREE.MeshLambertMaterial( { map: groundTexture } );
let mesh = new THREE.Mesh( new THREE.PlaneGeometry( 20000, 20000 ), groundMaterial );
mesh.position.y = - 250;
mesh.rotation.x = - Math.PI / 2;
mesh.receiveShadow = true;
scene.add( mesh );
// renderer
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.shadowMap.enabled = true;
// controls
const controls = new OrbitControls( camera, renderer.domElement );
controls.maxPolarAngle = Math.PI * 0.5;
controls.minDistance = 100;
controls.maxDistance = 500;
window.addEventListener( 'resize', onWindowResize );
if ( typeof TESTING !== 'undefined' )
{
for ( let i = 0; i < 50; i ++ )
{
simulate( 500 - 10 * i );
}
}
}
function onWindowResize()
{
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function animate( now )
{
requestAnimationFrame( animate );
render();
}
function render()
{
renderer.render( scene, camera );
}
</script>
</body>
【问题讨论】：
标签： three.js