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Jungle-Birds.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Jungle Birds</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
</head>
<body>
<div id="container"></div>
<div id="info"><a href="http://uwc.graphics" target="_blank">CGPP</a> Swoopin and Loopin</div>
<div id="progressBar">
<div id="bar"></div>
</div>
<script src="js/MobileAndTabletCheck.js"></script>
<script src="js/three.js"></script>
<script src="js/dat.gui.min.js"></script>
<script src="js/Detector.js"></script>
<script src="js/stats.min.js"></script>
<script src="js/OrbitControls.js"></script>
<script id="vertexShader" type="x-shader/x-vertex" src=>
precision mediump float;
precision mediump int;
uniform mat4 modelViewMatrix; // optional
uniform mat4 projectionMatrix; // optional
uniform float time;
uniform vec2 mouse;
uniform vec3 cameraPos;
uniform float pSize;
attribute vec3 position;
attribute vec3 normal;
attribute vec4 colors;
varying vec3 vPosition;
varying vec4 vColor;
void main() {
vPosition = position;
vColor = colors;
vec3 p = position;
gl_Position =
projectionMatrix * modelViewMatrix * vec4( p, 1.0 );
//float d = distance(p, cameraPos);
//gl_PointSize = pSize/(d);//4.0;//pointSize;
}
</script>
<script id="fragmentShader" type="x-shader/x-fragment">
precision mediump float;
precision mediump int;
uniform float time;
varying vec3 vPosition;
varying vec4 vColor;
void main() {
vec4 col = vColor;
//col.g = 0.0;
gl_FragColor = vec4( col );
}
</script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var container, stats;
var camera, scene, renderer, controls;
var pointLight, skyBox, plane;
var gui, params;
var sound, playAudio, volume, geometry,
material, mouse, noiseShape, noiseGeometry;
//var monkeys = WebMonkeys();
init();
console.log(scene.children[0]);
gui.closed = true;
animate();
function init() {
container = document.getElementById( 'container' );
camera = new THREE.PerspectiveCamera( 50,
window.innerWidth / window.innerHeight, 0.5, 1800 );
camera.position.set(20, -100, 30);
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
mouse = new THREE.Vector2();
renderer = new THREE.WebGLRenderer({
antialias : true,
preserveDrawingBuffer : true,
});
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.autoClear = false;
container.appendChild( renderer.domElement );
controls = new THREE.OrbitControls( camera, renderer.domElement );
controls.enableDamping = true;
controls.dampingFactor = 0.9;
controls.zoomSpeed = 0.12;
controls.rotateSpeed = 0.15;
controls.maxDistance = 5000;
controls.minDistance = 5
initGui();
var dim = 12;
var spacing = 4;
vertCount = dim*dim*dim;
geometry = new THREE.BufferGeometry();
var paddedSize = vertCount*3;
// Create cube of particles
verts = new Float32Array(paddedSize);
for (var i=0; i<vertCount; i++) {
verts[3*i+0] = spacing*(i%dim-dim/2);
verts[3*i+1] = spacing*Math.floor(i/dim)%dim-dim/2;
verts[3*i+2] = spacing*Math.floor(i/(dim*dim))-dim/2;
}
vels = new Float32Array(paddedSize);
for (i of vels) i = 0.0;
// Random initial colors (these are overriden after first frame)
colors = new Float32Array(vertCount*4*4);
for (var i=0; i<vertCount*4; i++) {
colors[4+i+0] = Math.random();
colors[4+i+1] = Math.random();
colors[4+i+2] = Math.random();
colors[4*i+3] = 1.0;
}
geometry.addAttribute( "position",
new THREE.BufferAttribute(verts, 3) );
geometry.addAttribute( "colors",
new THREE.BufferAttribute(colors, 4));
material = new THREE.RawShaderMaterial( {
uniforms: {
time: { value: 1.0 },
cameraPos : {value: camera.position},
// pSize: {value : params.pointSize},
mouse : {value : mouse }
},
vertexShader:
document.getElementById( 'vertexShader' ).textContent,
fragmentShader:
document.getElementById( 'fragmentShader' ).textContent,
side: THREE.DoubleSide,
transparent: false,
depthTest: false
} );
points = new THREE.Mesh( geometry, material );
scene = new THREE.Scene();
scene.add(points);
plane = new THREE.Mesh(
new THREE.PlaneGeometry( 700, 700, 8,8 ),
new THREE.MeshBasicMaterial( {
transparent: true,
opacity: 0.005,
color: 0x000000 } ) );
plane.position.z = -120;
camera.add(plane);
scene.add(camera);
stats = new Stats();
container.appendChild( stats.dom );
window.addEventListener( 'resize', onWindowResize, false );
}
function initGui() {
params = {
Energy: 2.0,
Momentum: 0.6,
Loopiness: 10.0,
pointSize: 140.0,
Fade: 0.2,
};
gui = new dat.GUI();
gui.add(params, "Energy", 0.0, 10.5);
gui.add(params, "Momentum", 0.0, 0.995);
gui.add(params, "Loopiness", 1.0, 80.0);
//gui.add(params, "pointSize", 50, 250);
gui.add(params, "Fade", 0.0, 0.4)
}
function onDocumentMouseMove(event) {
mouse.x = ( event.clientX / window.innerWidth );
mouse.y = ( event.clientY / window.innerHeight );
}
function onWindowResize( event ) {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
var time = 0.005*performance.now();
plane.material.opacity = params.Fade*params.Fade;
plane.material.color.r = 2*Math.sin(time*0.008)+1;
plane.material.color.g = 2*Math.sin(time*0.008)+1;
plane.material.color.b = 2*Math.sin(time*0.008)+1;
points.material.uniforms.time.value = time;
points.material.uniforms.cameraPos.value = camera.position;
//points.material.uniforms.pSize.value = params.pointSize;
var rForce = params.Energy*params.Energy;
var pos = points.geometry.attributes.position.array;
var cols = points.geometry.attributes.colors.array;
for (var i=0; i <vertCount; i++) {
var a = 3*i;
var b = 3*((i+1)%vertCount);
// Get x,y,z delta between two particles
dx = pos[a+0] - pos[b+0];
dy = pos[a+1] - pos[b+1];
dz = pos[a+2] - pos[b+2];
// Calculate distance between the two
var dist = dx*dx+dy*dy+dz*dz+params.Loopiness;
// Update velocity based on force between the two
vels[a+0] -= rForce*dx/dist;
vels[a+1] -= rForce*dy/dist;
vels[a+2] -= rForce*dz/dist;
// Drag
vels[a+0] *= params.Momentum;
vels[a+1] *= params.Momentum;
vels[a+2] *= params.Momentum;
// xyz velocity vector is used as RGB color
var c = 4*i;
cols[c+0] = 10.0*vels[a+0];
cols[c+1] = 10.0*vels[a+1];
cols[c+2] = 10.0*vels[a+2];
// Update particle position
pos[a+0] += vels[a+0];
pos[a+1] += vels[a+1];
pos[a+2] += vels[a+2];
}
// Let threejs know to send updated particles to gpu
points.geometry.attributes.position.needsUpdate = true;
points.geometry.attributes.colors.needsUpdate = true;
//renderer.clear(true, false, false);
renderer.render( scene, camera );
}
</script>
</body>
</html>