source/threejs/test1.js.coffee

window.delay = (ms, fn)-> setTimeout(fn, ms)
window.timer = (ms, fn)-> setInterval(fn, ms)

window.$options =
  startupCows: true
  trampolineShader: true
  postProcessing: true

t = THREE
scene = new t.Scene
camera = new t.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
renderer = new t.WebGLRenderer {antialias: true}
renderer.setSize window.innerWidth, window.innerHeight
document.body.appendChild renderer.domElement

cow = new BouncingCows scene, =>
  return unless $options.startupCows
  cow.addParticle {x: 0.0, y: 1.0, z: 3.0}, {x:0, y:3, z:0}
  for x in [1..10]
    cow.addParticle {x: Math.random() * 10 - 5, y:  Math.random() * 4 + 0.5, z: Math.random() * 10 - 5}, {x:  Math.random() * 3 - 1.5, y:Math.random() * 3 - 1.5, z:Math.random() * 3 - 1.5}, false
trampoline = new Trampoline(scene, $options)
cow.trampoline = trampoline

camera.position.z = 5
camera.position.y = 5
camera.rotation.y = -0.2
originalCameraPosition = camera.position
controls = new THREE.TrackballControls( camera );

controls.rotateSpeed = 10.0;
controls.zoomSpeed = 1.2;
controls.panSpeed = 0.8;

controls.noZoom = false;
controls.noPan = false;

controls.staticMoving = true;
controls.dynamicDampingFactor = 0.3;

controls.keys = [ 65, 83, 68 ];

controls.addEventListener( 'change', -> render );

ufo = new Ufo(scene, cow, camera)

pointLight = new t.PointLight 0xFFeeee
pointLight.position.x = 0
pointLight.position.y = 0.5
pointLight.position.z = 15
scene.add pointLight

light = new t.AmbientLight 0x444444
scene.add light


# Background
texture = THREE.ImageUtils.loadTexture( 'farm.png' );
backgroundMesh = new THREE.Mesh(
    new THREE.PlaneGeometry(2, 2, 0),
    new THREE.MeshBasicMaterial({
        map: texture
    }));

backgroundMesh .material.depthTest = false;
backgroundMesh .material.depthWrite = false;

# Create your background scene
backgroundScene = new THREE.Scene();
backgroundCamera = new THREE.Camera();
backgroundScene.add(backgroundCamera );
backgroundScene.add(backgroundMesh );

window.addEventListener 'resize', ->
  camera.aspect = window.innerWidth / window.innerHeight
  camera.updateProjectionMatrix()
  renderer.setSize( window.innerWidth, window.innerHeight )
  controls.handleResize()

# postprocessing
width = window.innerWidth || 1;
height = window.innerHeight || 1;
parameters = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBAFormat, stencilBuffer: false };

renderTarget = new THREE.WebGLRenderTarget( width, height, parameters );

composer = new THREE.EffectComposer( renderer, renderTarget );
composer.addPass( new THREE.RenderPass( backgroundScene, backgroundCamera ) );
composer.addPass( new THREE.RenderPass( scene, camera ) );

effect = new THREE.ShaderPass( THREE.BGCopyShader );
effect.uniforms["background"].value = texture;
composer.addPass( effect );

effect = new THREE.ShaderPass( THREE.VignetteShader );
effect.uniforms[ "offset" ].value = 0.95;
effect.uniforms[ "darkness" ].value = 1.6;
composer.addPass( effect ) if $options.postProcessing

effect = new THREE.ShaderPass( THREE.FXAAShader );
effect.uniforms["resolution"].value = new THREE.Vector2(1.0 / window.innerWidth, 1.0 / window.innerHeight)
composer.addPass(effect) if $options.postProcessing

effect = new THREE.ShaderPass( THREE.CopyShader );
effect.renderToScreen = true;
composer.addPass( effect );
# effect = new THREE.ShaderPass( THREE.RGBShiftShader );
# effect.uniforms[ 'amount' ].value = 0.0015;
# composer.addPass( effect );


lastTime = Date.now()
render = ->
  requestAnimationFrame render
  timestep = Math.min((Date.now() - lastTime), 50) * 0.001
  lastTime = Date.now()
  cow.update(timestep)
  trampoline.update(timestep)
  ufo.update(timestep)
  controls.update()
  renderer.autoClear = false
  renderer.clear()
  # renderer.render backgroundScene, backgroundCamera
  # renderer.render scene, camera
  composer.render scene, camera

render()

document.addEventListener "keydown", (event) ->
  ufo.handleKey(event)

document.addEventListener "keyup", (event) ->
  switch event.which
    when 101 then controls.reset()
    else ufo.handleKey(event)

window.$scene = scene
window.$ufo = ufo
window.$cow = cow