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Webruby code vs JavaScript code, both use three.js
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// The original JS code for WebGL geometries example in three.js repository | |
// I only changed the order of the functions for better comparison | |
// with the Ruby version. | |
// You can still find the original version inline at http://mrdoob.github.com/three.js/examples/webgl_geometries.html | |
var container, stats; | |
var camera, scene, renderer; | |
if ( ! Detector.webgl ) Detector.addGetWebGLMessage(); | |
function onWindowResize() { | |
camera.aspect = window.innerWidth / window.innerHeight; | |
camera.updateProjectionMatrix(); | |
renderer.setSize( window.innerWidth, window.innerHeight ); | |
} | |
function init() { | |
container = document.createElement( 'div' ); | |
document.body.appendChild( container ); | |
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 ); | |
camera.position.y = 400; | |
scene = new THREE.Scene(); | |
var light, object, object2, materials; | |
scene.add( new THREE.AmbientLight( 0x404040 ) ); | |
light = new THREE.DirectionalLight( 0xffffff ); | |
light.position.set( 0, 1, 0 ); | |
scene.add( light ); | |
var map = THREE.ImageUtils.loadTexture( 'textures/ash_uvgrid01.jpg' ); | |
map.wrapS = map.wrapT = THREE.RepeatWrapping; | |
map.anisotropy = 16; | |
materials = [ | |
new THREE.MeshLambertMaterial( { ambient: 0xbbbbbb, map: map, side: THREE.DoubleSide } ), | |
new THREE.MeshBasicMaterial( { color: 0xffffff, wireframe: true, transparent: true, opacity: 0.1, side: THREE.DoubleSide } ) | |
]; | |
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.CubeGeometry( 100, 100, 100, 4, 4, 4 ), materials ); | |
object.position.set( -200, 0, 400 ); | |
scene.add( object ); | |
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.CylinderGeometry( 25, 75, 100, 40, 5 ), materials ); | |
object.position.set( 0, 0, 400 ); | |
scene.add( object ); | |
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.IcosahedronGeometry( 75, 1 ), materials ); | |
object.position.set( -200, 0, 200 ); | |
scene.add( object ); | |
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.OctahedronGeometry( 75, 2 ), materials ); | |
object.position.set( 0, 0, 200 ); | |
scene.add( object ); | |
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.TetrahedronGeometry( 75, 0 ), materials ); | |
object.position.set( 200, 0, 200 ); | |
scene.add( object ); | |
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.PlaneGeometry( 100, 100, 4, 4 ), materials ); | |
object.position.set( -200, 0, 0 ); | |
scene.add( object ); | |
object2 = THREE.SceneUtils.createMultiMaterialObject( new THREE.CircleGeometry( 50, 10, 0, Math.PI ), materials ); | |
object2.rotation.x = Math.PI/2; | |
object.add( object2 ); | |
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.SphereGeometry( 75, 20, 10 ), materials ); | |
object.position.set( 0, 0, 0 ); | |
scene.add( object ); | |
var points = []; | |
for ( var i = 0; i < 50; i ++ ) { | |
points.push( new THREE.Vector3( Math.sin( i * 0.2 ) * 15 + 50, 0, ( i - 5 ) * 2 ) ); | |
} | |
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.LatheGeometry( points, 20 ), materials ); | |
object.position.set( 200, 0, 0 ); | |
scene.add( object ); | |
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.TorusGeometry( 50, 20, 20, 20 ), materials ); | |
object.position.set( -200, 0, -200 ); | |
scene.add( object ); | |
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.TorusKnotGeometry( 50, 10, 50, 20 ), materials ); | |
object.position.set( 0, 0, -200 ); | |
scene.add( object ); | |
object = new THREE.AxisHelper( 50 ); | |
object.position.set( 200, 0, -200 ); | |
scene.add( object ); | |
object = new THREE.ArrowHelper( new THREE.Vector3( 0, 1, 0 ), new THREE.Vector3( 0, 0, 0 ), 50 ); | |
object.position.set( 200, 0, 400 ); | |
scene.add( object ); | |
renderer = new THREE.WebGLRenderer( { antialias: true } ); | |
renderer.setSize( window.innerWidth, window.innerHeight ); | |
container.appendChild( renderer.domElement ); | |
stats = new Stats(); | |
stats.domElement.style.position = 'absolute'; | |
stats.domElement.style.top = '0px'; | |
container.appendChild( stats.domElement ); | |
window.addEventListener( 'resize', onWindowResize, false ); | |
} | |
function render() { | |
var timer = Date.now() * 0.0001; | |
camera.position.x = Math.cos( timer ) * 800; | |
camera.position.z = Math.sin( timer ) * 800; | |
camera.lookAt( scene.position ); | |
for ( var i = 0, l = scene.children.length; i < l; i ++ ) { | |
var object = scene.children[ i ]; | |
object.rotation.x = timer * 5; | |
object.rotation.y = timer * 2.5; | |
} | |
renderer.render( scene, camera ); | |
} | |
function animate() { | |
requestAnimationFrame( animate ); | |
render(); | |
stats.update(); | |
} | |
init(); | |
animate(); |
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# WebGL example powered by three.js | |
# This example is originated from http://mrdoob.github.com/three.js/examples/webgl_geometries.html | |
$window = MrubyJs::get_root_object | |
$document = $window.document | |
$three = $window.THREE | |
$container = $stats = nil | |
$camera = $scene = $renderer = nil | |
unless $window.Detector.webgl | |
$window.Detector.addGetWebGLMessage[] | |
end | |
def onWindowResize | |
if $camera | |
$camera.aspect = $window.innerWidth / $window.innerHeight | |
$camera.updateProjectionMatrix[] | |
end | |
if $renderer | |
$renderer.setSize($window.innerWidth, $window.innerHeight) | |
end | |
end | |
def init | |
$container = $document.createElement('div') | |
$document.body.appendChild($container) | |
$camera = $three.PerspectiveCamera.invoke_new( | |
45, $window.innerWidth / $window.innerHeight, 1, 2000) | |
$camera.position.y = 400 | |
$scene = $three.Scene.invoke_new | |
$scene.add($three.AmbientLight.invoke_new(0x404040)) | |
light = $three.DirectionalLight.invoke_new(0xffffff) | |
light.position.call(:set, 0, 1, 0) | |
$scene.add(light) | |
map = $three.ImageUtils.loadTexture("textures/ash_uvgrid01.jpg") | |
map.wrapS = map.wrapT = $three.RepeatWrapping | |
map.anisotropy = 16 | |
materials = [$three.MeshLambertMaterial.invoke_new({ambient: 0xbbbbbb, map: map, side: $three.DoubleSide}), | |
$three.MeshBasicMaterial.invoke_new({color: 0xffffff, wireframe: true, transparent: true, opacity: 0.1, side: $three.DoubleSide})] | |
object_create_func = $three.SceneUtils.createMultiMaterialObject | |
object = object_create_func[$three.CubeGeometry.invoke_new(100, 100, 100, 4, 4, 4), materials] | |
object.position.call(:set, -200, 0, 400) | |
$scene.add(object) | |
object = object_create_func[$three.CylinderGeometry.invoke_new(25, 75, 100, 40, 5), materials] | |
object.position.call(:set, 0, 0, 400) | |
$scene.add(object) | |
object = object_create_func[$three.IcosahedronGeometry.invoke_new(75, 1), materials] | |
object.position.call(:set, -200, 0, 200) | |
$scene.add(object) | |
object = object_create_func[$three.OctahedronGeometry.invoke_new(75, 2), materials] | |
object.position.call(:set, 0, 0, 200) | |
$scene.add(object) | |
object = object_create_func[$three.TetrahedronGeometry.invoke_new(75, 0), materials] | |
object.position.call(:set, 200, 0, 200) | |
$scene.add(object) | |
object = object_create_func[$three.PlaneGeometry.invoke_new(100, 100, 4, 4), materials] | |
object.position.call(:set, -200, 0, 0) | |
$scene.add(object) | |
object2 = object_create_func[$three.CircleGeometry.invoke_new(50, 10, 0, Math::PI), materials] | |
object2.rotation["x"] = Math::PI / 2 | |
object.add(object2) | |
object = object_create_func[$three.SphereGeometry.invoke_new(75, 20, 10), materials] | |
object.position.call(:set, 0, 0, 0) | |
$scene.add(object) | |
points = [] | |
vector3_func = $three.Vector3 | |
50.times do |i| | |
points << vector3_func.invoke_new(Math.sin(i * 0.2) * 15 + 50, 0, (i - 5) * 2) | |
end | |
object = object_create_func[$three.LatheGeometry.invoke_new(points, 20), materials] | |
object.position.call(:set, 200, 0, 0) | |
$scene.add(object) | |
object = object_create_func[$three.TorusGeometry.invoke_new(50, 20, 20, 20), materials] | |
object.position.call(:set, -200, 0, -200) | |
$scene.add(object) | |
object = object_create_func[$three.TorusKnotGeometry.invoke_new(50, 10, 50, 20), materials] | |
object.position.call(:set, 0, 0, -200) | |
$scene.add(object) | |
object = $three.AxisHelper.invoke_new(50) | |
object.position.call(:set, 200, 0, -200) | |
$scene.add(object) | |
object = $three.ArrowHelper.invoke_new(vector3_func.invoke_new(0, 1, 0), | |
vector3_func.invoke_new(0, 0, 0), 50) | |
object.position.call(:set, 200, 0, 400) | |
$scene.add(object) | |
$renderer = $three.WebGLRenderer.invoke_new({antialias: true}) | |
$renderer.setSize($window.innerWidth, $window.innerHeight) | |
$container.appendChild($renderer.domElement) | |
$stats = $window.Stats.invoke_new | |
$stats.domElement.style.position = 'absolute' | |
$stats.domElement.style.top = '0px' | |
$container.appendChild( $stats.domElement ) | |
$window.addEventListener('resize', :onWindowResize.to_proc, false) | |
end | |
def do_render | |
t = Time.now | |
timer = t.sec * 0.1 + t.usec * 0.0000001 | |
$camera.position.x = Math.cos(timer) * 800 | |
$camera.position.z = Math.sin(timer) * 800 | |
$camera.lookAt( $scene.position ) | |
$scene.children.each do |object| | |
object.rotation.x = timer * 5 | |
object.rotation.y = timer * 2.5 | |
end | |
$renderer.render($scene, $camera) | |
end | |
def animate | |
$window.requestAnimationFrame(:animate.to_proc) | |
do_render | |
$stats.update[] | |
end | |
init | |
animate |
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