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example_sketchy.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>crayon.js - Loose and Sketchy</title>
<meta charset="utf-8">
<style>
body {
margin: 0px;
background-color: #000000;
overflow: hidden;
color: #fff;
font-family: monospace;
}
a {
color: #fff;
}
#info {
position: absolute;
top: 10px;
width: 100%;
z-index: 10;
text-align: center;
}
</style>
</head>
<body>
<script src="three.min.js"></script>
<script src="stats.min.js"></script>
<script src="js/TrackballControls.js"></script>
<div id="info">
NPR Horse.<br/>
Loosely based on a "<a href="http://otherthings.com/uw/loose/">Loose and Sketchy</a>" rendering <a href="http://www.researchgate.net/publication/4195948_A_mediated_reality_environment_using_a_loose_and_sketchy_rendering_technique/file/79e41509828a147ea3.pdf">approach</a>.<br/>
Built with <a href="https://github.com/zz85/crayon.js/tree/dev">crayon.js</a> and <a href="http://threejs.org">three.js</a> by <a href="http://twitter.com/blurspline">@blurspline</a>
<br/>
Credits: <a href="http://dl-stockandresources.deviantart.com/art/Hard-Paper-Texture-334738384">Paper Texture</a>, Horse from <a href="http://ro.me">Ro.me</a>, Art color grading <a href="https://github.com/spite/Wagner">Wagner</a>
</div>
<script type="x-shader/x-vertex" id="particle-brush-vs">
uniform float time;
uniform sampler2D texture;
uniform sampler2D brush;
uniform sampler2D color;
attribute float size;
// varying vec3 vColor;
varying float vEdge;
float rand(vec2 co){
return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453123);
}
void main() {
vec2 uv = vec2( (position.xy + 1.) / 2. ) ;
// vColor = texture2D( color, uv ).xyz;
vEdge = texture2D( texture, uv ).x;
float t = time * 0.002;
// vec3 offset = vec3(0.);
vec3 offset = vec3(0.);
// offset = vec3(sin(t + uv.y * 64.132), cos(t + uv.x * 63. ), 0.) / 198.;
// vec3(rand(uv.yx * 10. + t), rand(uv.xy + t), 0.) / 20.;
// modelViewMatrix *
vec4 mvPosition = vec4( position + offset, 1.0 );
gl_PointSize = size;
if (vEdge < 0.01) gl_PointSize = 0.; // Optimization Trick for faster FPS
// gl_PointSize = 10.0;
// Screen space point
gl_Position = projectionMatrix * mvPosition;
}
</script>
<script type="x-shader/x-fragment" id="particle-brush-fs">
uniform sampler2D texture;
uniform sampler2D brush;
uniform sampler2D color;
varying vec3 vColor;
varying float vEdge;
void main() {
if (vEdge < 0.1 ) discard;
gl_FragColor = vec4(texture2D( brush, gl_PointCoord ).xyz , vEdge * 0.2 + 0.8);
}
</script>
<script src="ThreeUtils2.js"></script>
<script src="crayon.js"></script>
<script>
CRAYON.extends( 'ArtNode', CRAYON.PostProcessNode, {
init: function() {
var options = {
uniforms: {
"tDiffuse": { type: "t", value: null },
"resolution": { type: "v2", value: new THREE.Vector2() }
},
vertexShader: getShaderCode('art-vs'),
fragmentShader: getShaderCode('art-fs')
}
var shaderMaterial = new THREE.ShaderMaterial( options );
shaderMaterial.uniforms.resolution.value.set( width, height );
CRAYON.PostProcessNode.call( this, renderer, shaderMaterial );
this.inputs.requires('tDiffuse');
}
} );
</script>
<script>
var camera, scene, renderer;
var mesh;
var stats;
var meshAnim;
init();
animate();
function init() {
renderer = new THREE.WebGLRenderer({
devicePixelRatio: 1
});
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
//
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
document.body.appendChild( stats.domElement );
//
CRAYON.extends( 'SceneNode', CRAYON.ShaderNode, {
init: function() {
CRAYON.ShaderNode.call( this );
// Renders scene to Render Target
camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.x = 400;
// camera.position.y = 150;
camera.position.z = -500;
controls = new THREE.TrackballControls( camera );
scene = new THREE.Scene();
// renderer.setClearColor( 0xffffff );
// renderer.setClearColor( 0x003300 );
var geometry = new THREE.CubeGeometry( 200, 200, 200 );
function phongMaterial(ambient, diffuse, shiny, power) {
return new THREE.MeshPhongMaterial({
emissive : ambient,
color : diffuse,
specular : shiny,
shininess: power
});
}
function directionalLight(x, y, z, color) {
var light = new THREE.DirectionalLight(color);
light.position.set(x,y,z).normalize();
return light;
}
scene.add(new THREE.AmbientLight(0x131313));
var material = new THREE.MeshPhongMaterial( { // MeshPhongMaterial MeshLambertMaterial
color: 0xfa9204,
// shading: THREE.FlatShading
} );
scene.add(directionalLight(.2,.2,-.4, 0xe0e0e0));
scene2 = new THREE.Object3D();
scene.add(scene2);
var loader = new THREE.JSONLoader( true );
loader.load( "models/horse.js", function( geometry ) {
// mesh = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: 0x606060, morphTargets: true } ) );
// mesh.scale.set( 1.5, 1.5, 1.5 );
// scene.add( mesh );
// mesh.position.y = -150;
var material = new THREE.MeshLambertMaterial( { color: 0xffaa55, morphTargets: true, vertexColors: THREE.FaceColors } );
// var material = new THREE.MeshBasicMaterial( { color: 0xffaa55, morphTargets: true, vertexColors: THREE.FaceColors } );
meshAnim = new THREE.MorphAnimMesh( geometry, material );
meshAnim.speed = 550;
meshAnim.duration = 1000;
meshAnim.time = 600 * Math.random();
meshAnim.position.y = -150;
meshAnim.scale.set( 1.5, 1.5, 1.5 );
scene2.add(meshAnim);
// meshAnim.castShadow = true;
// meshAnim.receiveShadow = true;
} );
var material = new THREE.MeshPhongMaterial( { color: 0xe0e0e0 } );
var geometry = new THREE.PlaneGeometry( 6000, 6000 );
plane = new THREE.Mesh( geometry, material );
plane.position.y = - 200;
plane.rotation.x = - Math.PI / 2;
scene2.add( plane );
var skyGeo = new THREE.SphereGeometry( 1000, 20, 15 );
var skyMat = new THREE.MeshPhongMaterial( { wireframe: !true, color: 0xfa9204, side: THREE.BackSide,
emissive: 0x232323 } );
scene2.add( new THREE.Mesh( skyGeo, skyMat ) );
},
render: function() {
controls.update();
delta = 1000 / 60;
if (meshAnim) {
meshAnim.updateAnimation( delta );
meshAnim.position.y = -150 + Math.sin( Date.now() * 0.005) * 60;
scene2.position.y = Math.sin( Date.now() * 0.004) * 76;
}
// cube.rotation.y = timer * 0.0005;
// sphere.position.y = Math.abs( Math.sin( timer * 0.002 ) ) * 150;
// sphere.rotation.x = timer * 0.0003;
// sphere.rotation.z = timer * 0.0002;
// sphere2.position.y = Math.abs( Math.sin( timer * 0.004 ) ) * 100;
// sphere2.rotation.x = timer * 0.0013;
// sphere2.rotation.z = timer * 0.0002;
// mesh.rotation.x += 0.005;
// mesh.rotation.y += 0.01;
// renderer.clear();
renderer.render( scene, camera, this.renderTarget );
}
} );
THREE.MultiplyNode = {
uniforms: {
"texture1": { type: "t", value: null },
"texture2": { type: "t", value: null },
"texture3": { type: "t", value: null },
"resolution": { type: "v2", value: new THREE.Vector2( 512, 512 ) },
},
vertexShader: [
"varying vec2 vUv;",
"void main() {",
"vUv = uv;",
"gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
"}"
].join("\n"),
fragmentShader: [
"uniform sampler2D texture1;",
"uniform sampler2D texture2;",
"uniform sampler2D texture3;",
"varying vec2 vUv;",
"uniform vec2 resolution;",
"void main(void)",
"{",
"vec3 c1 = texture2D( texture1, vUv ).rgb;",
"vec3 c2 = texture2D( texture2, vUv ).rgb;",
"vec3 c3 = texture2D( texture3, vUv / vec2(1., resolution.x / resolution.y) ).rgb;",
// "gl_FragColor = vec4((1. - (1. - c1) * (1. - c2)), 1.0);",
// "gl_FragColor = vec4(c1 * c2, 1.0);",
// "gl_FragColor = vec4(1.-c2 , 1.0);",
"gl_FragColor = vec4(c1 * (1. - c2) * c3, 1.0);",
// "gl_FragColor = vec4(c1 * (1.-c2), 1.0);",
"} ",
].join("\n")
};
//
sceneNode = new CRAYON.SceneNode();
sceneDepthNode = new CRAYON.SceneDepthNode( sceneNode );
screenNode = new CRAYON.RenderToScreenNode( renderer );
edgeNode = new CRAYON.EdgeFilterNode( renderer );
multiplyNode = new CRAYON.MultiplyNode( renderer );
executorNode = new CRAYON.ExecutorNode( renderer );
particleNode = new CRAYON.ParticleRendererNode( renderer, "textures/circle.png" );
// spark1.png circle.png snowflake7_alpha.png
artNode = new CRAYON.ArtNode( renderer );
blurNode = new CRAYON.BlurNode( renderer, 2, 4 );
// 0210-2.jpg 0210-4.jpg beige-paper-texture.jpg *
// hard_paper.jpg* moleskine_page.jpg paper_texture_by_knightfall_stock.jpg
// Paper_texture_v5_by_bashcorpo.jpg
var paper = THREE.ImageUtils.loadTexture( "textures/hard_paper.jpg" );
multiplyNode.material.uniforms.texture3.value = paper;
/*
sceneNode.connect(edgeNode, 'texture');
// sceneNode.connect(sceneDepthNode, 'fake');
// sceneDepthNode.connect(edgeNode, 'texture');
edgeNode.connect(particleNode, 'texture');
sceneNode.connect(particleNode, 'color');
particleNode.connect(screenNode, 'texture');
screenNode.connect(executorNode, 'texture');
*/
/**/
// Debug Depth
// sceneNode.connect(sceneDepthNode, 'texture');
// sceneDepthNode.connect(screenNode, 'texture');
// screenNode.connect(executorNode, 'texture');
/*
// Debug SCene
sceneNode.connect(screenNode, 'texture');
screenNode.connect(executorNode, 'texture');
*/
/**/
sceneNode.connect(sceneDepthNode);
sceneDepthNode.connect(edgeNode, 'texture');
sceneNode.connect(artNode);
artNode.connect(blurNode);
// sceneNode.connect(blurNode)
edgeNode.connect(particleNode, 'texture');
sceneNode.connect(particleNode, 'color');
particleNode.connect(multiplyNode, 'texture2');
// edgeNode.connect(multiplyNode, 'texture2');
blurNode.connect(multiplyNode, 'texture1');
multiplyNode.connect(screenNode, 'texture');
// particleNode.connect(screenNode);
screenNode.connect(executorNode, 'texture');
// window.addEventListener( 'resize', onWindowResize, false );
// gl = renderer.getContext('2d');
// meh = gl.getExtension( "WEBGL_depth_texture" )
// console.log(meh);
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function animate() {
requestAnimationFrame( animate );
executorNode.renderAll();
stats.update();
}
</script>
</body>
</html>