three.js/envMap.html at master · rkweb/three.js · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
	<title>threejs == webGL == reflection</title>
	<style>
		body {
			background:#000;
			color:#fff;
			padding:0;
			margin:0;
			overflow:hidden;
			font-family:georgia;
			text-align:center;
		}
		a { color:skyblue; text-decoration:none }
		#info {
			position: absolute;
			width: 100%;
		}
	</style>
</head>
<body>


    <script src="js/three.min.js"></script>
    <script src="js/OrbitControls.js"></script>
    <script>


	    var camear, scene, renderer, ambient;

	    var material, sphereMaterial, textureCube;

	    var cubeMesh, sphereMesh;

	    var controls;

	    var cameraCube, sceneCube;

	    init();
	    animate();

	    function init(){

	        //相机
	        camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 100000 );
	        camera.position.set(0, 0, 1000);
	        cameraCube = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 100000 );

	        controls = new THREE.OrbitControls( camera );
	        controls.minDistance = 500;
			controls.maxDistance = 2500;


			//场景
	        scene = new THREE.Scene();
	        sceneCube = new THREE.Scene();


	        //灯光
	       ambient = new THREE.AmbientLight( 0xffffff );
		   scene.add( ambient );

		   //Textures
		   var imgArr = [
		   		'img/cube/posx.jpg',
		   		'img/cube/negx.jpg',
		   		'img/cube/posy.jpg',
		   		'img/cube/negy.jpg',
		   		'img/cube/posz.jpg',
		   		'img/cube/negz.jpg'
		   ];

		    textureCube = new THREE.CubeTextureLoader().load( imgArr );
		    textureCube.format = THREE.RGBFormat;
			textureCube.mapping = THREE.CubeReflectionMapping;

		    var cubeShader = THREE.ShaderLib[ "cube" ];
		    material = new THREE.ShaderMaterial( {
				fragmentShader: cubeShader.fragmentShader,
				vertexShader: cubeShader.vertexShader,
				uniforms: cubeShader.uniforms,
				depthWrite: false,
				side: THREE.BackSide
			} );
			material.uniforms[ "tCube" ].value = textureCube;


			cubeMesh = new THREE.Mesh( new THREE.BoxGeometry( 100, 100, 100 ), material );
			sceneCube.add( cubeMesh );


			var geometry = new THREE.SphereGeometry( 300, 24, 24 );
			sphereMaterial = new THREE.MeshLambertMaterial( { envMap: textureCube } );
			sphereMesh = new THREE.Mesh( geometry, sphereMaterial );
			// sphereMesh.position.set(0, 0, -50);
			scene.add( sphereMesh );


			//渲染器
	        renderer = new THREE.WebGLRenderer();
	        //设置canvas背景色和背景色透明度
	        renderer.setClearColor(0x000000,0);
	        //
	        renderer.autoClear = false;
			renderer.setPixelRatio( window.devicePixelRatio );
	        renderer.setSize( window.innerWidth, window.innerHeight );
	        renderer.setFaceCulling( THREE.CullFaceNone );
	        document.body.appendChild( renderer.domElement );


	    }

	    function animate() {

	    	requestAnimationFrame(animate);

	    	render();

	    	controls.update();

	    }


	    function render() {

	        camera.lookAt( scene.position );
	        cameraCube.rotation.copy( camera.rotation );

	        renderer.render(sceneCube, cameraCube);
	        renderer.render(scene, camera);

	    }


    </script>

</body>
</html>