mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 13:06:01 +10:00
Mr.doob
76e7ea3461
WebGLRenderer antialias is off by default (considering Firefox doesn't support it...) Formatting clean up here and there
370 lines
10 KiB
HTML
370 lines
10 KiB
HTML
<!DOCTYPE HTML>
|
|
<html lang="en">
|
|
<head>
|
|
<title>three.js webgl - ribbons</title>
|
|
<meta charset="utf-8">
|
|
<style type="text/css">
|
|
body {
|
|
background-color: #000000;
|
|
margin: 0px;
|
|
overflow: hidden;
|
|
font-family:Monospace;
|
|
font-size:13px;
|
|
text-align:center;
|
|
font-weight: bold;
|
|
text-align:center;
|
|
}
|
|
|
|
a {
|
|
color:#0078ff;
|
|
}
|
|
|
|
#info {
|
|
color:#fff;
|
|
position: absolute;
|
|
top: 0px; width: 100%;
|
|
padding: 5px;
|
|
z-index:100;
|
|
}
|
|
</style>
|
|
</head>
|
|
|
|
<body>
|
|
|
|
<script type="text/javascript" src="../build/Three.js"></script>
|
|
|
|
<script type="text/javascript" src="js/Detector.js"></script>
|
|
<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
|
|
<script type="text/javascript" src="js/Stats.js"></script>
|
|
|
|
<div id="info">
|
|
<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - webgl ribbons example
|
|
</div>
|
|
|
|
|
|
<script type="text/javascript">
|
|
|
|
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
|
|
|
|
var container, stats;
|
|
var camera, scene, renderer, ribbon, geometry, geometry2, materials = [], ribbons = [],
|
|
parameters, i, i2, h, color, x, y, z, z2, s, n, n2, nribbons, grid;
|
|
|
|
var mouseX = 0, mouseY = 0;
|
|
|
|
var windowHalfX = window.innerWidth / 2;
|
|
var windowHalfY = window.innerHeight / 2;
|
|
|
|
var postprocessing = { enabled : true };
|
|
|
|
init();
|
|
animate();
|
|
|
|
function init() {
|
|
|
|
container = document.createElement( 'div' );
|
|
document.body.appendChild( container );
|
|
|
|
camera = new THREE.Camera( 70, window.innerWidth / window.innerHeight, 1, 3000 );
|
|
camera.position.z = 1200;
|
|
|
|
scene = new THREE.Scene();
|
|
scene.fog = new THREE.FogExp2( 0x000000, 0.0016 );
|
|
|
|
renderer = new THREE.WebGLRenderer( { antialias: false } );
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
container.appendChild( renderer.domElement );
|
|
|
|
renderer.setClearColor( scene.fog.color, 1 );
|
|
|
|
geometry = new THREE.Geometry();
|
|
geometry2 = new THREE.Geometry();
|
|
|
|
n = 1000;
|
|
n2 = 2 * n;
|
|
|
|
for ( i = -n; i < n; i++ ) {
|
|
|
|
i2 = i + n;
|
|
|
|
x = i * 1.175;
|
|
y = ( i2 % 2 ) * 5;
|
|
|
|
if ( i2 % 2 ) {
|
|
|
|
z = 10 * Math.sin( i2 * 0.3 ) * Math.cos( i2 * 0.1 );
|
|
|
|
}
|
|
|
|
vector = new THREE.Vector3( x, y, z );
|
|
geometry.vertices.push( new THREE.Vertex( vector ) );
|
|
|
|
|
|
vector = new THREE.Vector3( x, y, z );
|
|
geometry2.vertices.push( new THREE.Vertex( vector ) );
|
|
|
|
h = i2%2 ? 1 : 0.15;
|
|
if( i2%4 <= 2 ) h -= 0.15;
|
|
|
|
color = new THREE.Color( 0xffffff );
|
|
color.setHSV( 0.1 , 0, h );
|
|
geometry.colors.push( color );
|
|
geometry2.colors.push( color );
|
|
|
|
}
|
|
|
|
var tmpRot = new THREE.Matrix4();
|
|
tmpRot.setRotationAxis( new THREE.Vector3( 1, 0, 0 ), 1.57 );
|
|
|
|
var material_base = new THREE.MeshBasicMaterial( { color:0xffffff, vertexColors:true } );
|
|
|
|
renderer.initMaterial( material_base, scene.lights, scene.fog );
|
|
|
|
xgrid = 34;
|
|
ygrid = 15;
|
|
nribbons = xgrid * ygrid;
|
|
|
|
c = 0;
|
|
for ( i = 0; i < xgrid; i++ )
|
|
for ( j = 0; j < ygrid; j++ ) {
|
|
|
|
materials[c] = new THREE.MeshBasicMaterial( { color:0xffffff, vertexColors:true } );
|
|
//materials[c].program = material_base.program;
|
|
|
|
ribbon = new THREE.Ribbon( i % 2 ? geometry : geometry2, materials[c] );
|
|
ribbon.rotation.x = 0;
|
|
ribbon.rotation.y = 1.57;
|
|
ribbon.rotation.z = 3.14;
|
|
|
|
x = 40 * ( i - xgrid/2 );
|
|
y = 40 * ( j - ygrid/2 );
|
|
z = 0;
|
|
ribbon.position.set( x, y, z );
|
|
|
|
materials[c].color.setHSV( i/xgrid, 0.3 + 0.7*j/ygrid, 1 );
|
|
|
|
ribbon.doubleSided = true;
|
|
ribbon.matrixAutoUpdate = false;
|
|
|
|
// manually create local matrix
|
|
|
|
ribbon.matrix.setPosition( ribbon.position );
|
|
ribbon.matrixRotationWorld.setRotationFromEuler( ribbon.rotation );
|
|
|
|
ribbon.matrix.n11 = ribbon.matrixRotationWorld.n11;
|
|
ribbon.matrix.n12 = ribbon.matrixRotationWorld.n12;
|
|
ribbon.matrix.n13 = ribbon.matrixRotationWorld.n13;
|
|
|
|
ribbon.matrix.n21 = ribbon.matrixRotationWorld.n21;
|
|
ribbon.matrix.n22 = ribbon.matrixRotationWorld.n22;
|
|
ribbon.matrix.n23 = ribbon.matrixRotationWorld.n23;
|
|
|
|
ribbon.matrix.n31 = ribbon.matrixRotationWorld.n31;
|
|
ribbon.matrix.n32 = ribbon.matrixRotationWorld.n32;
|
|
ribbon.matrix.n33 = ribbon.matrixRotationWorld.n33;
|
|
|
|
ribbon.matrix.multiplySelf( tmpRot );
|
|
|
|
ribbon.matrix.scale( ribbon.scale );
|
|
ribbon.boundRadiusScale = Math.max( ribbon.scale.x, Math.max( ribbon.scale.y, ribbon.scale.z ) );
|
|
|
|
ribbons.push( ribbon );
|
|
scene.addObject( ribbon );
|
|
|
|
c++;
|
|
|
|
}
|
|
|
|
scene.matrixAutoUpdate = false;
|
|
|
|
initPostprocessing();
|
|
renderer.autoClear = false;
|
|
|
|
stats = new Stats();
|
|
stats.domElement.style.position = 'absolute';
|
|
stats.domElement.style.top = '0px';
|
|
container.appendChild( stats.domElement );
|
|
|
|
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
|
|
document.addEventListener( 'touchstart', onDocumentTouchStart, false );
|
|
document.addEventListener( 'touchmove', onDocumentTouchMove, false );
|
|
|
|
}
|
|
|
|
function onDocumentMouseMove( event ) {
|
|
|
|
mouseX = event.clientX - windowHalfX;
|
|
mouseY = event.clientY - windowHalfY;
|
|
|
|
}
|
|
|
|
function onDocumentTouchStart( event ) {
|
|
|
|
if ( event.touches.length == 1 ) {
|
|
|
|
event.preventDefault();
|
|
|
|
mouseX = event.touches[ 0 ].pageX - windowHalfX;
|
|
mouseY = event.touches[ 0 ].pageY - windowHalfY;
|
|
|
|
}
|
|
}
|
|
|
|
function onDocumentTouchMove( event ) {
|
|
|
|
if ( event.touches.length == 1 ) {
|
|
|
|
event.preventDefault();
|
|
|
|
mouseX = event.touches[ 0 ].pageX - windowHalfX;
|
|
mouseY = event.touches[ 0 ].pageY - windowHalfY;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function initPostprocessing() {
|
|
|
|
postprocessing.scene = new THREE.Scene();
|
|
|
|
postprocessing.camera = new THREE.Camera();
|
|
postprocessing.camera.projectionMatrix = THREE.Matrix4.makeOrtho( window.innerWidth / - 2, window.innerWidth / 2, window.innerHeight / 2, window.innerHeight / - 2, -10000, 10000 );
|
|
postprocessing.camera.position.z = 100;
|
|
|
|
var pars = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBFormat };
|
|
postprocessing.rtTexture1 = new THREE.WebGLRenderTarget( window.innerWidth, window.innerHeight, pars );
|
|
postprocessing.rtTexture2 = new THREE.WebGLRenderTarget( 512, 512, pars );
|
|
postprocessing.rtTexture3 = new THREE.WebGLRenderTarget( 512, 512, pars );
|
|
|
|
var screen_shader = THREE.ShaderUtils.lib["screen"];
|
|
var screen_uniforms = THREE.UniformsUtils.clone( screen_shader.uniforms );
|
|
|
|
screen_uniforms["tDiffuse"].texture = postprocessing.rtTexture1;
|
|
screen_uniforms["opacity"].value = 1.0;
|
|
|
|
postprocessing.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 );
|
|
|
|
postprocessing.blurx = new THREE.Vector2( 0.001953125, 0.0 ),
|
|
postprocessing.blury = new THREE.Vector2( 0.0, 0.001953125 );
|
|
|
|
convolution_uniforms["tDiffuse"].texture = postprocessing.rtTexture1;
|
|
convolution_uniforms["uImageIncrement"].value = postprocessing.blurx;
|
|
convolution_uniforms["cKernel"].value = THREE.ShaderUtils.buildKernel( 4.0 );
|
|
|
|
postprocessing.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
|
|
|
|
} );
|
|
|
|
postprocessing.quad = new THREE.Mesh( new THREE.Plane( window.innerWidth, window.innerHeight ), postprocessing.materialConvolution );
|
|
postprocessing.quad.position.z = -500;
|
|
postprocessing.scene.addObject( postprocessing.quad );
|
|
|
|
}
|
|
|
|
//
|
|
|
|
function animate() {
|
|
|
|
requestAnimationFrame( animate );
|
|
|
|
render();
|
|
stats.update();
|
|
|
|
}
|
|
|
|
function render() {
|
|
|
|
var time = new Date().getTime() * 0.00005;
|
|
|
|
camera.position.x += ( mouseX - camera.position.x ) * 0.036;
|
|
camera.position.y += ( - (mouseY) - camera.position.y ) * 0.036;
|
|
|
|
for ( i = -n; i < n; i++ ) {
|
|
|
|
i2 = i + n;
|
|
|
|
z = 10 * Math.sin( i2 * 0.1 + time*30 );
|
|
z2 = 20 * Math.cos( Math.sin( i2 * 0.1 + time * 20 ) );
|
|
|
|
geometry.vertices[i2].position.z = z;
|
|
geometry2.vertices[i2].position.z = z2;
|
|
|
|
}
|
|
|
|
geometry.__dirtyVertices = true;
|
|
geometry2.__dirtyVertices = true;
|
|
|
|
|
|
for( i = 0; i < nribbons; i++ ) {
|
|
|
|
h = ( 360 * ( i/nribbons + time ) % 360 ) / 360;
|
|
materials[i].color.setHSV( h, 0.5+0.5*(i%20/20), 1 );
|
|
|
|
}
|
|
|
|
if ( postprocessing.enabled ) {
|
|
|
|
renderer.clear();
|
|
|
|
// Render scene into texture
|
|
|
|
renderer.render( scene, camera, postprocessing.rtTexture1, true );
|
|
|
|
// Render quad with blured scene into texture (convolution pass 1)
|
|
|
|
postprocessing.quad.materials = [ postprocessing.materialConvolution ];
|
|
|
|
postprocessing.materialConvolution.uniforms.tDiffuse.texture = postprocessing.rtTexture1;
|
|
postprocessing.materialConvolution.uniforms.uImageIncrement.value = postprocessing.blurx;
|
|
|
|
renderer.render( postprocessing.scene, postprocessing.camera, postprocessing.rtTexture2, true );
|
|
|
|
// Render quad with blured scene into texture (convolution pass 2)
|
|
|
|
postprocessing.materialConvolution.uniforms.tDiffuse.texture = postprocessing.rtTexture2;
|
|
postprocessing.materialConvolution.uniforms.uImageIncrement.value = postprocessing.blury;
|
|
|
|
renderer.render( postprocessing.scene, postprocessing.camera, postprocessing.rtTexture3, true );
|
|
|
|
// Render original scene with superimposed blur to texture
|
|
|
|
postprocessing.quad.materials = [ postprocessing.materialScreen ];
|
|
|
|
postprocessing.materialScreen.uniforms.tDiffuse.texture = postprocessing.rtTexture3;
|
|
postprocessing.materialScreen.uniforms.opacity.value = 1.2;
|
|
|
|
renderer.render( postprocessing.scene, postprocessing.camera, postprocessing.rtTexture1, false );
|
|
|
|
// Render to screen
|
|
|
|
postprocessing.materialScreen.uniforms.tDiffuse.texture = postprocessing.rtTexture1;
|
|
renderer.render( postprocessing.scene, postprocessing.camera );
|
|
|
|
} else {
|
|
|
|
renderer.clear();
|
|
renderer.render( scene, camera );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
</script>
|
|
</body>
|
|
</html>
|