threex
Version:
Game Extensions for three.js http://www.threejsgames.com/extensions/
150 lines (132 loc) • 5.15 kB
HTML
<script src='../../../vendor/three.js/build/three.min.js'></script>
<script src="../../../vendor/require.js/require.js"></script>
<body style='margin: 0px; background-color: #000; overflow: hidden;'><script>
require([ '../../threex.effectcomposer/package.require.js'
], function(){
var renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
var updateFcts = [];
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.01, 100 );
camera.position.z = 5;
//////////////////////////////////////////////////////////////////////////////////
// comment //
//////////////////////////////////////////////////////////////////////////////////
var displaceMin = 0.01
// from http://krazydad.com/bestiary/bestiary_lightning.html
function drawLightning(vertices, point1, point2,displace){
if( displace < displaceMin ){
if( vertices.length === 0 ) vertices.push(point1)
vertices.push(point2)
} else {
var middle = point1.clone().add(point2).multiplyScalar(0.5)
middle.x += (Math.random()-0.5)*displace;
middle.y += (Math.random()-0.5)*displace;
drawLightning(vertices, point1, middle, displace/2);
drawLightning(vertices, middle, point2, displace/2);
}
}
var positionBeg = new THREE.Vector3(-2,0,0)
var positionEnd = new THREE.Vector3( 2,0,0)
for(var i = 0; i < 1; i++){
(function(){
// build geometry
var geometry = new THREE.Geometry();
var lastTime = null
var period = -1;
updateFcts.push(function(delta, now){
// rate limiter
lastTime = lastTime !== null ? lastTime : now
if( now - lastTime < period ) return;
lastTime = now
period = 0.3 + Math.random() * 0.2
// update vertices
geometry.vertices = []
drawLightning(geometry.vertices, positionBeg, positionEnd, 2)
geometry.verticesNeedUpdate = true;
material.color.setHSL(Math.random(), 1.0, 0.5)
})
// build the rest of the lines
var material = new THREE.LineBasicMaterial({
linewidth : 8,
color : 'cyan',
//blending : THREE.MultiplyBlending,
//transparent : true,
});
var line = new THREE.Line(geometry, material, THREE.LineStrip);
scene.add(line)
})()
}
//////////////////////////////////////////////////////////////////////////////////
// pilons //
//////////////////////////////////////////////////////////////////////////////////
var piloneL = new THREE.Object3D()
piloneL.position.copy(positionBeg.clone().add(new THREE.Vector3(-0.5, 0, 0)))
scene.add(piloneL)
var geometry = new THREE.SphereGeometry(0.5, 32, 16)
var material = new THREE.MeshNormalMaterial()
var mesh = new THREE.Mesh(geometry, material)
piloneL.add(mesh)
var geometry = new THREE.CylinderGeometry(0.1, 0.1, 3)
var material = new THREE.MeshNormalMaterial()
var mesh = new THREE.Mesh(geometry, material)
mesh.position.y = (-3 / 2)
piloneL.add(mesh)
var piloneR = new THREE.Object3D()
piloneR.position.copy(positionEnd.clone().add(new THREE.Vector3(+0.5, 0, 0)))
scene.add(piloneR)
var geometry = new THREE.SphereGeometry(0.5, 32, 16)
var material = new THREE.MeshNormalMaterial()
var mesh = new THREE.Mesh(geometry, material)
piloneR.add(mesh)
var geometry = new THREE.CylinderGeometry(0.1, 0.1, 3)
var material = new THREE.MeshNormalMaterial()
var mesh = new THREE.Mesh(geometry, material)
mesh.position.y = (-3 / 2)
piloneR.add(mesh)
//////////////////////////////////////////////////////////////////////////////////
// Camera Controls //
//////////////////////////////////////////////////////////////////////////////////
var mouse = {x : 0, y : 0}
document.addEventListener('mousemove', function(event){
mouse.x = (event.clientX / window.innerWidth ) - 0.5
mouse.y = (event.clientY / window.innerHeight) - 0.5
}, false)
updateFcts.push(function(delta, now){
camera.position.x += (mouse.x*5 - camera.position.x) * (delta*3)
camera.position.y += (mouse.y*5 - camera.position.y) * (delta*3)
camera.lookAt( scene.position )
})
//////////////////////////////////////////////////////////////////////////////////
// render the scene //
//////////////////////////////////////////////////////////////////////////////////
var composer = new THREEx.EffectComposer(renderer)
.renderPass(scene, camera)
.motionBlur(0.8)
.bloom(5)
.bleachbypass(0.99)
.copy()
.finish()
updateFcts.push(function(delta, now){
composer.update(delta);
})
//////////////////////////////////////////////////////////////////////////////////
// loop runner //
//////////////////////////////////////////////////////////////////////////////////
var lastTimeMsec= null
requestAnimationFrame(function animate(nowMsec){
// keep looping
requestAnimationFrame( animate );
// measure time
lastTimeMsec = lastTimeMsec || nowMsec-1000/60
var deltaMsec = Math.min(200, nowMsec - lastTimeMsec)
lastTimeMsec = nowMsec
// call each update function
updateFcts.forEach(function(updateFn){
updateFn(deltaMsec/1000, nowMsec/1000)
})
})
})
</script></body>