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demo.html
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demo.html
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<!doctype html>
<html lang="en">
<head>
<title>Voxels liquid</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 {
font-family: Monospace;
background-color: #f0f0f0;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 0px; width: 100%;
padding: 5px;
text-align:center;
}
</style>
</head>
<body>
<div style="text-align:center;clear:both">
<script src="/gg_bd_ad_720x90.js" type="text/javascript"></script>
<script src="/follow.js" type="text/javascript"></script>
</div>
<script src="Detector.js"></script>
<script src="RequestAnimationFrame.js"></script>
<script src="Stats.js"></script>
<script src="Three.js"></script>
<script>
var size = 10, res = 32, sizeres = size * res, halfsizeres = sizeres / 2;
var buffer1 = [], buffer2 = [], temp;
var grid = [], plane;
var scene, camera, light, renderer;
var geometry, material;
var mouse, projector, ray, intersects = [];
var stats;
if ( Detector.webgl ) {
init();
animate();
} else {
document.body.appendChild( Detector.getWebGLErrorMessage() );
}
function init() {
var container = document.createElement( 'div' );
document.body.appendChild( container );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
// container.appendChild( stats.domElement );
for ( var i = 0, l = res * res; i < l; i ++ ) {
buffer1[ i ] = 0;
buffer2[ i ] = 0;
}
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.x = 100 + sizeres;
camera.position.y = 200;
camera.position.z = 100 + sizeres;
camera.lookAt( new THREE.Vector3( halfsizeres, - 50, halfsizeres ) );
scene.add( camera );
scene.add( new THREE.AmbientLight( 0x808080 ) );
light = new THREE.SpotLight( 0xffffff, 1.25 );
light.position.set( - 500, 900, 600 );
light.target.position.set( halfsizeres, 0, halfsizeres );
light.castShadow = true;
scene.add( light );
geometry = new THREE.CubeGeometry( size, size, size );
geometry.applyMatrix( new THREE.Matrix4().setTranslation( 0, size / 2, 0 ) );
material = new THREE.MeshLambertMaterial( { color: 0xd0d0d0 } );
for ( var i = 0, l = res * res; i < l; i ++ ) {
cube = new THREE.Mesh( geometry, material );
cube.position.x = size + ( ( i % res ) * 10 );
cube.position.z = size + ( Math.floor( i / res ) * 10 );
cube.castShadow = true;
cube.receiveShadow = true;
scene.add( cube );
grid.push( cube );
}
geometry = new THREE.PlaneGeometry( sizeres, sizeres );
plane = new THREE.Mesh( geometry, material );
plane.position.x = halfsizeres;
plane.position.z = halfsizeres;
plane.rotation.x = - 90 * Math.PI / 180;
plane.visible = false;
scene.add( plane );
renderer = new THREE.WebGLRenderer();
renderer.shadowMapEnabled = true;
renderer.shadowMapSoft = true;
renderer.shadowCameraNear = 3;
renderer.shadowCameraFar = camera.far;
renderer.shadowCameraFov = 50;
renderer.shadowMapBias = 0.0039;
renderer.shadowMapDarkness = 0.5;
renderer.shadowMapWidth = 512;
renderer.shadowMapHeight = 512;
var devicePixelRatio = window.devicePixelRatio || 1;
renderer.setSize( window.innerWidth * devicePixelRatio, window.innerHeight * devicePixelRatio );
renderer.domElement.style.width = window.innerWidth + 'px';
renderer.domElement.style.height = window.innerHeight + 'px';
container.appendChild( renderer.domElement );
mouse = new THREE.Vector3( 0, 0, 1 );
projector = new THREE.Projector();
ray = new THREE.Ray( camera.position );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
}
function onDocumentMouseMove( event ) {
mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
ray.direction = projector.unprojectVector( mouse.clone(), camera );
ray.direction.subSelf( camera.position ).normalize();
intersects = ray.intersectObject( plane );
}
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
if ( intersects.length ) {
var point = intersects[ 0 ].point;
var x = Math.floor( point.x / size );
var y = Math.floor( point.z / size );
buffer1[ x + y * res ] = 10;
}
var bottom = res * res - res;
// update buffers
for ( var i = 0, l = res * res; i < l; i ++ ) {
var x1, x2, y1, y2;
if ( i % res == 0 ) {
// left edge
x1 = 0;
x2 = buffer1[ i + 1 ];
} else if ( i % res == res - 1 ) {
// right edge
x1 = buffer1[ i - 1 ];
x2 = 0;
} else {
x1 = buffer1[ i - 1 ];
x2 = buffer1[ i + 1 ];
}
if ( i < res ) {
// top edge
y1 = 0;
y2 = buffer1[ i + res ];
} else if ( i > l - res - 1 ) {
// bottom edge
y1 = buffer1[ i - res ];
y2 = 0;
} else {
y1 = buffer1[ i - res ];
y2 = buffer1[ i + res ];
}
buffer2[ i ] = ( x1 + x2 + y1 + y2 ) / 1.9 - buffer2[ i ];
buffer2[ i ] -= buffer2[ i ] / 10;
}
temp = buffer1;
buffer1 = buffer2;
buffer2 = temp;
// update grid
for ( var i = 0, l = res * res; i < l; i ++ ) {
grid[ i ].scale.y += ( Math.max( 0.1, 0.1 + buffer2[ i ] ) - grid[ i ].scale.y ) * 0.1;
}
renderer.render( scene, camera );
}
</script>
</body>
</html>