<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - materials - lightmap</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 {
background:#fff;
padding:0;
margin:0;
overflow:hidden;
font-family:georgia;
text-align:center;
}
h1 { }
a { color:skyblue }
#stats { position: absolute; top:0; left: 0 }
#stats #fps { background: transparent !important }
#stats #fps #fpsText { color: #abc !important }
#stats #fps #fpsGraph { display: none }
</style>
</head>
<body>
<script src="../build/three.min.js"></script>
<script src="js/controls/OrbitControls.js"></script>
<script src="js/Detector.js"></script>
<script src="js/libs/stats.min.js"></script>
<script type="x-shader/x-vertex" id="vertexShader">
varying vec3 vWorldPosition;
void main() {
vec4 worldPosition = modelMatrix * vec4( position, 1.0 );
vWorldPosition = worldPosition.xyz;
gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
}
</script>
<script type="x-shader/x-fragment" id="fragmentShader">
uniform vec3 topColor;
uniform vec3 bottomColor;
uniform float offset;
uniform float exponent;
varying vec3 vWorldPosition;
void main() {
float h = normalize( vWorldPosition + offset ).y;
gl_FragColor = vec4( mix( bottomColor, topColor, max( pow( max( h, 0.0 ), exponent ), 0.0 ) ), 1.0 );
}
</script>
<script>
var SCREEN_WIDTH = window.innerWidth;
var SCREEN_HEIGHT = window.innerHeight;
var container,stats;
var camera, scene, renderer;
var clock = new THREE.Clock();
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
// CAMERA
camera = new THREE.PerspectiveCamera( 40, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 10000 );
camera.position.x = 700;
camera.position.z = -500;
camera.position.y = 180;
// SCENE
scene = new THREE.Scene();
scene.fog = new THREE.Fog( 0xffffff, 1000, 10000 );
// CONTROLS
controls = new THREE.OrbitControls( camera );
// LIGHTS
var directionalLight = new THREE.DirectionalLight( 0x333333, 2 );
directionalLight.position.set( 100, 100, -100 );
scene.add( directionalLight );
var hemiLight = new THREE.HemisphereLight( 0xaabbff, 0x040404, 1 );
hemiLight.position.y = 500;
scene.add( hemiLight );
// SKYDOME
var vertexShader = document.getElementById( 'vertexShader' ).textContent;
var fragmentShader = document.getElementById( 'fragmentShader' ).textContent;
var uniforms = {
topColor: { type: "c", value: new THREE.Color( 0x0077ff ) },
bottomColor: { type: "c", value: new THREE.Color( 0xffffff ) },
offset: { type: "f", value: 400 },
exponent: { type: "f", value: 0.6 }
}
uniforms.topColor.value.copy( hemiLight.color );
scene.fog.color.copy( uniforms.bottomColor.value );
var skyGeo = new THREE.SphereGeometry( 4000, 32, 15 );
var skyMat = new THREE.ShaderMaterial( {
uniforms: uniforms,
vertexShader: vertexShader,
fragmentShader: fragmentShader,
side: THREE.BackSide
} );
var sky = new THREE.Mesh( skyGeo, skyMat );
scene.add( sky );
// RENDERER
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setClearColor( scene.fog.color );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
renderer.domElement.style.position = "relative";
container.appendChild( renderer.domElement );
renderer.gammaInput = true;
renderer.gammaOutput = true;
// STATS
stats = new Stats();
container.appendChild( stats.domElement );
// MODEL
var loader = new THREE.JSONLoader();
loader.load( "obj/lightmap/lightmap.js", function ( geometry, materials ) {
var mesh = new THREE.Mesh( geometry, new THREE.MeshFaceMaterial( materials ) );
mesh.scale.multiplyScalar( 100 );
scene.add( mesh );
} );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
//
function animate() {
requestAnimationFrame( animate );
renderer.render( scene, camera );
stats.update();
}
</script>
</body>
</html>