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提交 d8c3c92f 编写于 作者: A alteredq
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Added dynamic particles demo.

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examples/webgl_particles_dynamic.html 0 → 100644
浏览文件 @ d8c3c92f
<!DOCTYPE HTML>
<html lang="en">
<head>
<title>three.js webgl - particles - dynamic - postprocessing</title>
<meta charset="utf-8">
<style type="text/css">
body {
color: #fff;
font-family:Monospace;
font-size:13px;
text-align:center;
font-weight: bold;
background-color: #000;
margin: 0px;
overflow: hidden;
}
#info {
color:#fff;
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a { color: red; }
</style>
</head>
<body>
<div id="container"></div>
<div id="info">
<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - webgl dynamic particles + postprocessing
- models by <a href="http://sketchup.google.com/3dwarehouse/details?mid=2c6fd128fca34052adc5f5b98d513da1" target="_blank">Reallusion</a>
<a href="http://sketchup.google.com/3dwarehouse/details?mid=f526cc4abf7cb68d76cab47c765b7255" target="_blank">iClone</a>,
<a href="http://artist-3d.com/free_3d_models/dnm/model_disp.php?uid=1129" target="_blank">Troyano</a>
</div>
<script type="text/javascript" src="../build/Three.js"></script>
<script type="text/javascript" src="js/Stats.js"></script>
<script type="text/javascript" src="js/Detector.js"></script>
<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
<script type="text/javascript">
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var SCREEN_HEIGHT = window.innerHeight;
var SCREEN_WIDTH = window.innerWidth;
var container, stats;
var camera, scene, renderer, mesh, directionalLight;
var parent,
meshes = [], clonemeshes = [];
var p;
var aloader, bloader;
var total = 0, totaln = 0;
var postprocessing1 = {};
var postprocessing2 = {};
init();
animate();
function init() {
container = document.getElementById( 'container' );
camera = new THREE.Camera( 20, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 50000 );
camera.position.z = 7000;
camera.position.y = 700;
scene = new THREE.Scene();
scene.fog = new THREE.FogExp2( 0x000104, 0.0000675 );
directionalLight = new THREE.DirectionalLight( 0xffffff );
directionalLight.position.set( 0, 0, 1 );
directionalLight.position.normalize();
scene.addLight( directionalLight );
initPostprocessingBloom( postprocessing1 );
initPostprocessingFocus( postprocessing2 );
aloader = new THREE.JSONLoader( );
bloader = new THREE.BinaryLoader( true );
document.body.appendChild( bloader.statusDomElement );
aloader.load( { model: "obj/terrain.js", callback: function( geometry ) {
createMesh( geometry, scene, 16.8, -11000, -200, -5000, 0x00ff44, false );
createMesh( geometry, scene, 16.8, 11000, -200, -15000, 0x00ff33, false );
createMesh( geometry, scene, 16.8, 0, -200, -15000, 0x00ff33, false );
createMesh( geometry, scene, 16.8, 0, -200, 15000, 0x00ff33, false );
createMesh( geometry, scene, 16.8, 11000, -200, 15000, 0x00ff22, false );
createMesh( geometry, scene, 16.8, -11000, -200, 5000, 0x00ff11, false );
createMesh( geometry, scene, 16.8, 13000, -200, 5000, 0x00ff55, false );
createMesh( geometry, scene, 16.8, 13000, -200, -5000, 0x00ff66, false );
} } );
bloader.load( { model: "obj/veyron/VeyronNoUv_bin.js", callback: function( geometry ) { createMesh( geometry, scene, 6.8, 2200, -200, -100, 0x0055ff, false ) } } );
bloader.load( { model: "obj/female02/Female02_bin.js", callback: function( geometry ) {
createMesh( geometry, scene, 4.05, -1000, -350, 0, 0xffdd44, true );
createMesh( geometry, scene, 4.05, 0, -350, 0, 0xffffff, true );
createMesh( geometry, scene, 4.05, 1000, -350, 400, 0xff4422, true );
createMesh( geometry, scene, 4.05, 250, -350, 1500, 0xff9955, true );
createMesh( geometry, scene, 4.05, 250, -350, 2500, 0xff77dd, true );
} } );
bloader.load( { model: "obj/male02/Male02_bin.js", callback: function( geometry ) {
createMesh( geometry, scene, 4.05, -500, -350, 600, 0xff7744, true );
createMesh( geometry, scene, 4.05, 500, -350, 0, 0xff5522, true );
createMesh( geometry, scene, 4.05, -250, -350, 1500, 0xff9922, true );
createMesh( geometry, scene, 4.05, -250, -350, -1500, 0xff99ff, true );
} } );
renderer = new THREE.WebGLRenderer( { clearColor: 0x000000, clearAlpha: 1, antialias: false } );
renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
renderer.autoClear = false;
renderer.sortObjects = false;
container.appendChild( renderer.domElement );
renderer.setClearColor( scene.fog.color, 1 );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
//container.appendChild( stats.domElement );
parent = new THREE.Object3D();
scene.addObject( parent );
var grid = new THREE.ParticleSystem( new THREE.Plane( 15000, 15000, 64, 64 ), new THREE.ParticleBasicMaterial( { color: 0xff0000, size: 10 } ) );
grid.rotation.x = 1.57;
grid.position.y = -400;
parent.addChild( grid );
totaln += 1;
total += grid.geometry.vertices.length;
}
function createMesh( originalGeometry, scene, scale, x, y, z, color, dynamic ) {
var i, c;
var vertices = originalGeometry.vertices;
var vl = vertices.length;
var geometry = new THREE.Geometry();
var vertices_tmp = [];
for( i = 0; i < vl; i++ ) {
p = vertices[ i ].position;
geometry.vertices[ i ] = new THREE.Vertex( p.clone() );
vertices_tmp[ i ] = [ p.x, p.y, p.z, 0, 0 ];
}
var clones = [
[ 6000, 0, -4000 ],
[ 5000, 0, 0 ],
[ 1000, 0, 5000 ],
[ 1000, 0, -5000 ],
[ 4000, 0, 2000 ],
[ -4000, 0, 1000 ],
[ -5000, 0, -5000 ],
[ 0, 0, 0 ]
];
if ( dynamic ) {
for( i = 0; i < clones.length; i++ ) {
c = ( i < clones.length -1 ) ? 0x252525 : color;
mesh = new THREE.ParticleSystem( geometry, new THREE.ParticleBasicMaterial( { size: 3, color: c } ) );
mesh.scale.x = mesh.scale.y = mesh.scale.z = scale;
mesh.position.x = x + clones[ i ][ 0 ];
mesh.position.y = y + clones[ i ][ 1 ];
mesh.position.z = z + clones[ i ][ 2 ];
parent.addChild( mesh );
clonemeshes.push( { mesh: mesh, speed: 0.5 + Math.random() } );
}
totaln += clones.length;
total += clones.length * vl;
} else {
mesh = new THREE.ParticleSystem( geometry, new THREE.ParticleBasicMaterial( { size: 3, color: color } ) );
mesh.scale.x = mesh.scale.y = mesh.scale.z = scale;
mesh.position.x = x;
mesh.position.y = y;
mesh.position.z = z;
parent.addChild( mesh );
totaln += 1;
total += vl;
}
bloader.statusDomElement.style.display = "none";
meshes.push( { mesh: mesh, vertices: geometry.vertices, vertices_tmp: vertices_tmp, vl: vl,
down: 0, up: 0, direction: 0, speed: 35, delay: Math.floor( 200 + 200 * Math.random() ),
started: false, start: Math.floor( 100 + 200 * Math.random() ),
dynamic: dynamic,
bb: geometry.boundingBox } );
console.log( total, totaln );
}
function initPostprocessingFocus( effect ) {
effect.type = "focus";
effect.scene = new THREE.Scene();
effect.camera = new THREE.Camera();
effect.camera.projectionMatrix = THREE.Matrix4.makeOrtho( SCREEN_WIDTH / - 2, SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2, SCREEN_HEIGHT / - 2, -10000, 10000 );
effect.camera.position.z = 100;
effect.texture = new THREE.WebGLRenderTarget( SCREEN_WIDTH, SCREEN_HEIGHT, { minFilter: THREE.LinearFilter, magFilter: THREE.NearestFilter, format: THREE.RGBFormat } );
var heatUniforms = {
"map": { type: "t", value:0, texture: effect.texture },
"screenWidth": { type: "f", value: SCREEN_WIDTH },
"screenHeight": { type: "f", value: SCREEN_HEIGHT },
"sampleDistance": { type: "f", value: 0.94 },
"waveFactor": { type: "f", value: 0.00125 }
};
effect.materialHeat = new THREE.MeshShaderMaterial( {
uniforms: heatUniforms,
vertexShader: [
"varying vec2 vUv;",
"void main() {",
"vUv = vec2( uv.x, 1.0 - uv.y );",
"gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
"}"
].join("\n"),
fragmentShader: [
"uniform float screenWidth;",
"uniform float screenHeight;",
"uniform float sampleDistance;",
"uniform float waveFactor;",
"uniform sampler2D map;",
"varying vec2 vUv;",
"void main() {",
"vec4 color, org, tmp, add;",
"float sample_dist, f;",
"vec2 vin;",
"vec2 uv = vUv;",
"add += color = org = texture2D( map, uv );",
"vin = ( uv - vec2( 0.5 ) ) * vec2( 1.4 );",
"sample_dist = dot( vin, vin ) * 2.0;",
"f = ( waveFactor * 100.0 + sample_dist ) * sampleDistance * 4.0;",
"vec2 sampleSize = vec2( 1.0 / screenWidth, 1.0 / screenHeight ) * vec2(f);",
"add += tmp = texture2D( map, uv + vec2(0.111964, 0.993712) * sampleSize );",
"if( tmp.b < color.b ) color = tmp;",
"add += tmp = texture2D( map, uv + vec2(0.846724, 0.532032) * sampleSize );",
"if( tmp.b < color.b ) color = tmp;",
"add += tmp = texture2D( map, uv + vec2(0.943883, -0.330279) * sampleSize );",
"if( tmp.b < color.b ) color = tmp;",
"add += tmp = texture2D( map, uv + vec2(0.330279, -0.943883) * sampleSize );",
"if( tmp.b < color.b ) color = tmp;",
"add += tmp = texture2D( map, uv + vec2(-0.532032, -0.846724) * sampleSize );",
"if( tmp.b < color.b ) color = tmp;",
"add += tmp = texture2D( map, uv + vec2(-0.993712, -0.111964) * sampleSize );",
"if( tmp.b < color.b ) color = tmp;",
"add += tmp = texture2D( map, uv + vec2(-0.707107, 0.707107) * sampleSize );",
"if( tmp.b < color.b ) color = tmp;",
"color = color * vec4( 2.0 ) - ( add / vec4( 8.0 ) );",
"color = color + ( add / vec4(8.0) - color ) * ( vec4(1.0) - vec4(sample_dist * 0.5) );",
"gl_FragColor = vec4( color.rgb * color.rgb * vec3( 0.95 ) + color.rgb, 1.0 );",
"}"
].join("\n")
} );
effect.quad = new THREE.Mesh( new THREE.Plane( SCREEN_WIDTH, SCREEN_HEIGHT ), effect.materialHeat );
effect.quad.position.z = -500;
effect.scene.addObject( effect.quad );
}
function initPostprocessingBloom( effect ) {
effect.type = "bloomnoise";
effect.scene = new THREE.Scene();
effect.camera = new THREE.Camera();
effect.camera.projectionMatrix = THREE.Matrix4.makeOrtho( SCREEN_WIDTH / - 2, SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2, SCREEN_HEIGHT / - 2, -10000, 10000 );
effect.camera.position.z = 100;
var pars = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBFormat };
effect.rtTexture1 = new THREE.WebGLRenderTarget( SCREEN_WIDTH, SCREEN_HEIGHT, pars );
effect.rtTexture2 = new THREE.WebGLRenderTarget( 256, 512, pars );
effect.rtTexture3 = new THREE.WebGLRenderTarget( 512, 256, pars );
var screen_shader = THREE.ShaderUtils.lib["screen"];
var screen_uniforms = THREE.UniformsUtils.clone( screen_shader.uniforms );
screen_uniforms["tDiffuse"].texture = effect.rtTexture3;
screen_uniforms["opacity"].value = 0.75;
effect.materialScreen = new THREE.MeshShaderMaterial( {
uniforms: screen_uniforms,
vertexShader: screen_shader.vertexShader,
fragmentShader: screen_shader.fragmentShader,
blending: THREE.AdditiveBlending,
transparent: true
} );
var convolution_shader = THREE.ShaderUtils.lib["convolution"];
var convolution_uniforms = THREE.UniformsUtils.clone( convolution_shader.uniforms );
effect.blurx = new THREE.Vector2( 0.001953125, 0.0 ),
effect.blury = new THREE.Vector2( 0.0, 0.001953125 );
convolution_uniforms["tDiffuse"].texture = effect.rtTexture1;
convolution_uniforms["uImageIncrement"].value = effect.blurx;
convolution_uniforms["cKernel"].value = THREE.ShaderUtils.buildKernel( 4.0 );
effect.materialConvolution = new THREE.MeshShaderMaterial( {
uniforms: convolution_uniforms,
vertexShader: "#define KERNEL_SIZE 25.0\n" + convolution_shader.vertexShader,
fragmentShader: "#define KERNEL_SIZE 25\n" + convolution_shader.fragmentShader
} );
var film_shader = THREE.ShaderUtils.lib["film"];
var film_uniforms = THREE.UniformsUtils.clone( film_shader.uniforms );
film_uniforms["tDiffuse"].texture = effect.rtTexture1;
effect.materialFilm = new THREE.MeshShaderMaterial( { uniforms: film_uniforms, vertexShader: film_shader.vertexShader, fragmentShader: film_shader.fragmentShader } );
effect.materialFilm.uniforms.grayscale.value = 0;
effect.materialFilm.uniforms.nIntensity.value = 0.5;
effect.materialFilm.uniforms.sIntensity.value = 0.5;
effect.materialFilm.uniforms.sCount.value = 1448;
effect.quad = new THREE.Mesh( new THREE.Plane( SCREEN_WIDTH, SCREEN_HEIGHT ), effect.materialConvolution );
effect.quad.position.z = -500;
effect.scene.addObject( effect.quad );
}
var j, jl, cm, data, vertices, vertices_tmp, vl, d, vt,
time, oldTime, delta;
function animate() {
requestAnimationFrame( animate );
render();
//stats.update();
}
function render() {
if ( ! oldTime ) {
oldTime = new Date().getTime();
}
time = new Date().getTime();
delta = 0.01 * ( time - oldTime );
oldTime = time;
delta = delta < 2 ? delta : 2;
parent.rotation.y += -0.02 * delta;
for( j = 0, jl = clonemeshes.length; j < jl; j++ ) {
cm = clonemeshes[ j ];
cm.mesh.rotation.y += -0.1 * delta * cm.speed;
}
for( j = 0, jl = meshes.length; j < jl; j++ ) {
data = meshes[ j ];
mesh = data.mesh;
vertices = data.vertices;
vertices_tmp = data.vertices_tmp;
vl = data.vl;
if ( ! data.dynamic ) continue;
if ( data.start > 0 ) {
data.start -= 1;
} else {
if ( !data.started ) {
data.direction = -1;
data.started = true;
}
}
for ( i = 0; i < vl; i ++ ) {
p = vertices[ i ].position;
vt = vertices_tmp[ i ];
// falling down
if ( data.direction < 0 ) {
// var d = Math.abs( p.x - vertices_tmp[ i ][ 0 ] ) + Math.abs( p.y - vertices_tmp[ i ][ 1 ] ) + Math.abs( p.z - vertices_tmp[ i ][ 2 ] );
// if ( d < 200 ) {
if ( p.y > 0 ) {
// p.y += data.direction * data.speed * delta;
p.x += 1.5 * ( 0.50 - Math.random() ) * data.speed * delta;
p.y += 3.0 * ( 0.25 - Math.random() ) * data.speed * delta;
p.z += 1.5 * ( 0.50 - Math.random() ) * data.speed * delta;
} else {
if ( ! vt[ 3 ] ) {
vt[ 3 ] = 1;
data.down += 1;
}
}
}
// rising up
if ( data.direction > 0 ) {
//if ( p.y < vertices_tmp[ i ][ 1 ] ) {
// p.y += data.direction * data.speed * delta;
d = Math.abs( p.x - vt[ 0 ] ) + Math.abs( p.y - vt[ 1 ] ) + Math.abs( p.z - vt[ 2 ] );
if ( d > 1 ) {
p.x += - ( p.x - vt[ 0 ] ) / d * data.speed * delta * ( 0.85 - Math.random() );
p.y += - ( p.y - vt[ 1 ] ) / d * data.speed * delta * ( 1 + Math.random() );
p.z += - ( p.z - vt[ 2 ] ) / d * data.speed * delta * ( 0.85 - Math.random() );
} else {
if ( ! vt[ 4 ] ) {
vt[ 4 ] = 1;
data.up += 1;
}
}
}
}
// all down
if ( data.down == vl ) {
if ( data.delay == 0 ) {
data.direction = 1;
data.speed = 10;
data.down = 0;
data.delay = 320;
for ( i = 0; i < vl; i ++ ) {
vertices_tmp[ i ][ 3 ] = 0;
}
} else {
data.delay -= 1;
}
}
// all up
if ( data.up == vl ) {
if ( data.delay == 0 ) {
data.direction = -1;
data.speed = 35;
data.up = 0;
data.delay = 120;
for ( i = 0; i < vl; i ++ ) {
vertices_tmp[ i ][ 4 ] = 0;
}
} else {
data.delay -= 1;
}
}
mesh.geometry.__dirtyVertices = true;
}
renderer.clear();
// BLOOM
// Render scene into texture
renderer.render( scene, camera, postprocessing1.rtTexture1, true );
// Render quad with blured scene into texture (convolution pass 1)
postprocessing1.quad.materials[ 0 ] = postprocessing1.materialConvolution;
postprocessing1.materialConvolution.uniforms.tDiffuse.texture = postprocessing1.rtTexture1;
postprocessing1.materialConvolution.uniforms.uImageIncrement.value = postprocessing1.blurx;
renderer.render( postprocessing1.scene, postprocessing1.camera, postprocessing1.rtTexture2, true );
// Render quad with blured scene into texture (convolution pass 2)
postprocessing1.materialConvolution.uniforms.tDiffuse.texture = postprocessing1.rtTexture2;
postprocessing1.materialConvolution.uniforms.uImageIncrement.value = postprocessing1.blury;
renderer.render( postprocessing1.scene, postprocessing1.camera, postprocessing1.rtTexture3, true );
// Render original scene with superimposed blur to texture
postprocessing1.quad.materials[ 0 ] = postprocessing1.materialScreen;
renderer.render( postprocessing1.scene, postprocessing1.camera, postprocessing1.rtTexture1, false );
// NOISE + SCANLINES
postprocessing1.materialFilm.uniforms.time.value += 0.01;
postprocessing1.quad.materials[ 0 ] = postprocessing1.materialFilm;
renderer.render( postprocessing1.scene, postprocessing1.camera, postprocessing2.texture, true );
// FOCUS
renderer.render( postprocessing2.scene, postprocessing2.camera );
}
</script>
</body>
</html>
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