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yuxi521

V2EX 第 472807 号会员，加入于 2020-02-27 18:23:07 +08:00

今日活跃度排名 11121

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1 天前

回复了 yuxi521 创建的主题 › 程序员 › 求助帖.Three.js

@LyleRockkk
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - 2/OBJLoader verification</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">

<style>
body {
font-family: Monospace;
background-color: #F5F5F5;
color: #fff;
margin: 0 0 0 0;
padding: 0 0 0 0;
border: none;
cursor: default;
}
#info {
color: #fff;
position: absolute;
top: 10px;
width: 100%;
text-align: center;
z-index: 100;
display:block;
}
#info a {
color: #f00;
font-weight: bold;
text-decoration: underline;
cursor: pointer
}
#glFullscreen {
width: 100%;
height: 100vh;
min-width: 640px;
min-height: 360px;
position: relative;
overflow: hidden;
z-index: 0;
}
#example {
width: 100%;
height: 100%;
top: 0;
left: 0;
background-color: #555555;
}
#feedback {
color: darkorange;
}
#dat {
user-select: none;
position: absolute;
left: 0;
top: 0;
z-Index: 200;
}
</style>
</head>

<body>
<div id="glFullscreen">
<canvas id="example"></canvas>
</div>
<div id="dat">

</div>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - OBJLoader2/OBJLoader verification
<div id="feedback"></div>
</div>

<script type="module">

'use strict';

import {
AmbientLight,
DirectionalLight,
GridHelper,
PerspectiveCamera,
Scene,
Vector3,
WebGLRenderer
} from "../../../../build/three.module.js";

import { TrackballControls } from "../../../jsm/controls/TrackballControls.js";

import { MTLLoader } from "../../../jsm/loaders/MTLLoader.js";
import { MtlObjBridge } from "../../../jsm/loaders/obj2/bridge/MtlObjBridge.js";
import { OBJLoader } from "../../../jsm/loaders/OBJLoader.js";
import { OBJLoader2 } from "../../../jsm/loaders/OBJLoader2.js";

const OBJLoaderVerify = function ( elementToBindTo ) {
this.renderer = null;
this.canvas = elementToBindTo;
this.aspectRatio = 1;
this.recalcAspectRatio();

this.scene = null;
this.cameraDefaults = {
posCamera: new Vector3( 0.0, 175.0, 500.0 ),
posCameraTarget: new Vector3( 0, 0, 0 ),
near: 0.1,
far: 10000,
fov: 45
};
this.camera = null;
this.cameraTarget = this.cameraDefaults.posCameraTarget;

this.controls = null;
};

OBJLoaderVerify.prototype = {

constructor: OBJLoaderVerify,

initGL: function () {
this.renderer = new WebGLRenderer( {
canvas: this.canvas,
antialias: true,
autoClear: true
} );
this.renderer.setClearColor( 0x050505 );

this.scene = new Scene();

this.camera = new PerspectiveCamera( this.cameraDefaults.fov, this.aspectRatio, this.cameraDefaults.near, this.cameraDefaults.far );
this.resetCamera();
this.controls = new TrackballControls( this.camera, this.renderer.domElement );

let ambientLight = new AmbientLight( 0x404040 );
let directionalLight1 = new DirectionalLight( 0xC0C090 );
let directionalLight2 = new DirectionalLight( 0xC0C090 );

directionalLight1.position.set( -100, -50, 100 );
directionalLight2.position.set( 100, 50, -100 );

this.scene.add( directionalLight1 );
this.scene.add( directionalLight2 );
this.scene.add( ambientLight );

let helper = new GridHelper( 1200, 60, 0xFF4444, 0x404040 );
this.scene.add( helper );
},

initContent: function () {
let modelName = 'verificationCubes';
this._reportProgress( { detail: { text: 'Loading: ' + modelName } } );

let objLoader = new OBJLoader();

let objLoader2 = new OBJLoader2();
objLoader2.setModelName( modelName );
objLoader2.setLogging( true, false );
objLoader2.setUseOAsMesh( true );

let scope = this;
let callbackOnLoad = function ( object3d ) {
scope.scene.add( object3d );
console.log( 'Loading complete: ' + modelName );
scope._reportProgress( { detail: { text: '' } } );
};
let onLoadMtl = function ( mtlParseResult ) {
objLoader.setMaterials( mtlParseResult );
objLoader.load( './mod1.obj', function ( object ) {
object.position.y = -100;
scope.scene.add( object );
} );

objLoader2.addMaterials( MtlObjBridge.addMaterialsFromMtlLoader( mtlParseResult ) );
objLoader2.load( './mod1.obj', callbackOnLoad, null, null, null );
};

let mtlLoader = new MTLLoader();
mtlLoader.load( './mod1.mtl', onLoadMtl );
},

_reportProgress: function( event ) {
let output = ( event.detail !== undefined && event.detail !== null && event.detail.text !== undefined && event.detail.text !== null ) ? event.detail.text : '';
console.log( 'Progress: ' + output );
document.getElementById( 'feedback' ).innerHTML = output;
},

resizeDisplayGL: function () {
this.controls.handleResize();

this.recalcAspectRatio();
this.renderer.setSize( this.canvas.offsetWidth, this.canvas.offsetHeight, false );

this.updateCamera();
},

recalcAspectRatio: function () {
this.aspectRatio = ( this.canvas.offsetHeight === 0 ) ? 1 : this.canvas.offsetWidth / this.canvas.offsetHeight;
},

resetCamera: function () {
this.camera.position.copy( this.cameraDefaults.posCamera );
this.cameraTarget.copy( this.cameraDefaults.posCameraTarget );

this.updateCamera();
},

updateCamera: function () {
this.camera.aspect = this.aspectRatio;
this.camera.lookAt( this.cameraTarget );
this.camera.updateProjectionMatrix();
},

render: function () {
if ( ! this.renderer.autoClear ) this.renderer.clear();
this.controls.update();
this.renderer.render( this.scene, this.camera );
}
};

let app = new OBJLoaderVerify( document.getElementById( 'example' ) );

let resizeWindow = function () {
app.resizeDisplayGL();
};

let render = function () {
requestAnimationFrame( render );
app.render();
};

window.addEventListener( 'resize', resizeWindow, false );

console.log( 'Starting initialisation phase...' );
app.initGL();
app.resizeDisplayGL();
app.initContent();

render();

</script>
</body>
</html>

2 天前

回复了 yuxi521 创建的主题 › 程序员 › 求助帖.Three.js

@lhx880619 仅仅是加载下模型展示出来也不知道难度,公司没这方面技术的同事,领导就派我上了,哎

11 天前

回复了 yuxi521 创建的主题 › 问与答 › 遇到一个自己完全没有接触过的技术该怎么办

@whileFalse 已经说了领导说让我慢慢学...

21 天前

回复了 zzqims9527q 创建的主题 › 推广 › 优惠售自家苹果和猕猴桃，抽奖送苹果

分母

23 天前

回复了 caowei922 创建的主题 › 推广 › 时隔一年，我又有来送苹果了！

我是分母