This is the O3D source tree's initial commit to the Chromium tree. It

is not built or referenced at all by the chrome build yet, and doesn't yet build in it's new home. We'll change that shortly. git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17035 0039d316-1c4b-4281-b951-d872f2087c98
author: gspencer@google.com <gspencer@google.com@0039d316-1c4b-4281-b951-d872f2087c98> 2009-05-27 23:15:42 +0000
committer: gspencer@google.com <gspencer@google.com@0039d316-1c4b-4281-b951-d872f2087c98> 2009-05-27 23:15:42 +0000
commit: 05b47f7a8c5451f858dc220df0e3a97542edace6 (patch)
tree: a2273d619f0625c9d44d40842845ccce2eac1045 /o3d/samples/particles.html
parent: 5cdc8bdb4c847cefe7f4542bd10c9880c2c557a0 (diff)
download: chromium_src-05b47f7a8c5451f858dc220df0e3a97542edace6.zip
chromium_src-05b47f7a8c5451f858dc220df0e3a97542edace6.tar.gz
chromium_src-05b47f7a8c5451f858dc220df0e3a97542edace6.tar.bz2
1 files changed, 497 insertions, 0 deletions
diff --git a/o3d/samples/particles.html b/o3d/samples/particles.html
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+<!--
+Copyright 2009, Google Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+    * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+-->
+
+<!--
+Particles.
+
+This example shows using the javascript particle library.
+-->
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+  "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>
+Particles.
+</title>
+<!-- Include sample javascript library functions-->
+<script type="text/javascript" src="o3djs/base.js"></script>
+
+<!-- Our javascript code -->
+<script type="text/javascript">
+o3djs.require('o3djs.util');
+o3djs.require('o3djs.math');
+o3djs.require('o3djs.quaternions');
+o3djs.require('o3djs.rendergraph');
+o3djs.require('o3djs.particles');
+o3djs.require('o3djs.loader');
+
+// global variables
+var g_o3d;
+var g_math;
+var g_client;
+var g_viewInfo;
+var g_pack;
+var g_particleSystem;
+var g_clockParam;
+var g_textures = [];
+var g_emitters = [];  // so we can find in the debugger to edit in real time.
+
+/**
+ * Loads a texture.
+ * @param {!o3djs.loader.Loader} loader Loader to use to load texture.
+ * @param {string} url relativel url of texture.
+ * @param {number} index Index at which to record texture.
+ */
+function loadTexture(loader, url, index) {
+  loader.loadTexture(
+      g_pack,
+      o3djs.util.getAbsoluteURI(url),
+      function(texture, exception) {
+        if (exception) {
+          alert(exception);
+        } else {
+          g_textures[index] = texture;
+        }
+      });
+}
+
+/**
+ * Returns a deterministic pseudorandom number bewteen 0 and 1
+ * @return {number} a random number between 0 and 1
+ */
+var g_randSeed = 0;
+var g_randRange = Math.pow(2, 32);
+function pseudoRandom() {
+  return (g_randSeed = (134775813 * g_randSeed + 1) % g_randRange) /
+         g_randRange;
+}
+
+/**
+ * Creates the client area.
+ */
+function init() {
+  // These are here so they are shared by both V8 and the browser.
+  window.g_finished = false;  // for selenium
+  window.g_timeMult = 1;
+  window.g_clock = 0;
+
+  // Comment out the line below to run the sample in the browser JavaScript
+  // engine. This may be helpful for debugging.
+  o3djs.util.setMainEngine(o3djs.util.Engine.V8);
+
+  o3djs.util.makeClients(initStep2);
+}
+
+/**
+ * Initializes O3D and creates one shape.
+ * @param {Array} clientElements Array of o3d object elements.
+ */
+function initStep2(clientElements) {
+  // Initializes global variables and libraries.
+  var o3dElement = clientElements[0];
+  g_o3d = o3dElement.o3d;
+  g_math = o3djs.math;
+  window.g_client = g_client = o3dElement.client;
+
+  // Creates a pack to manage our resources/assets
+  g_pack = g_client.createPack();
+
+  g_viewInfo = o3djs.rendergraph.createBasicView(
+      g_pack,
+      g_client.root,
+      g_client.renderGraphRoot);
+
+  g_viewInfo.drawContext.projection = g_math.matrix4.perspective(
+      g_math.degToRad(30), // 30 degree fov.
+      g_client.width / g_client.height,
+      0.1,                // Near plane.
+      5000);              // Far plane.
+
+  g_viewInfo.drawContext.view = g_math.matrix4.lookAt(
+      [500, 1000, 1000], // eye
+      [0, 200, 0],   // target
+      [0, 1, 0]);  // up
+
+
+
+  // Load textures. This happens asynchronously.
+  var loader = o3djs.loader.createLoader(initStep3);
+  loadTexture(loader, 'assets/particle-anim.png', 0);
+  loadTexture(loader, 'assets/ripple.png', 1);
+  loader.finish();
+}
+
+function initStep3() {
+  // Normally we wouldn't pass in a clock and the particle system would handle
+  // this for me but for selenium testing we need to be able to control the
+  // clock so we're passing in our own clock param.
+  var paramObject = g_pack.createObject('ParamObject');
+  g_clockParam = paramObject.createParam('clock', 'ParamFloat');
+
+  // Normally we wouldn't pass in a random function but for selenium we need
+  // the particle system to produce the exact same results each time so
+  // we're passing in a predictable random function.
+  g_particleSystem = o3djs.particles.createParticleSystem(g_pack,
+                                                          g_viewInfo,
+                                                          g_clockParam,
+                                                          pseudoRandom);
+  setupFlame();
+  setupNaturalGasFlame();
+  setupSmoke();
+  setupWhiteEnergy();
+  setupGoogle();
+  setupRain();
+  setupRipples();
+  setupAnim();
+  setupBall();
+  setupCube();
+
+  // Setup an onrender callback for animation.
+  g_client.setRenderCallback(onrender);
+
+  window.g_finished = true;  // for selenium testing.
+}
+
+function setupFlame() {
+  var transform = g_pack.createObject('Transform');
+  transform.parent = g_client.root;
+  transform.translate(-300, 0, 0);
+
+  var emitter = g_particleSystem.createParticleEmitter();
+  g_emitters.push(emitter);
+  emitter.setState(o3djs.particles.ParticleStateIds.ADD);
+  emitter.setColorRamp(
+      [1, 1, 0, 1,
+       1, 0, 0, 1,
+       0, 0, 0, 1,
+       0, 0, 0, 0.5,
+       0, 0, 0, 0]);
+  emitter.setParameters({
+    numParticles: 20,
+    lifeTime: 2,
+    timeRange: 2,
+    startSize: 50,
+    endSize: 90,
+    velocity:[0, 60, 0], velocityRange: [15, 15, 15],
+    worldAcceleration: [0, -20, 0],
+    spinSpeedRange: 4});
+  transform.addShape(emitter.shape);
+}
+
+function setupNaturalGasFlame() {
+  var transform = g_pack.createObject('Transform');
+  transform.parent = g_client.root;
+  transform.translate(-200, 0, 0);
+
+  var emitter = g_particleSystem.createParticleEmitter();
+  g_emitters.push(emitter);
+  emitter.setState(o3djs.particles.ParticleStateIds.ADD);
+  emitter.setColorRamp(
+      [0.2, 0.2, 1, 1,
+       0, 0, 1, 1,
+       0, 0, 1, 0.5,
+       0, 0, 1, 0]);
+  emitter.setParameters({
+    numParticles: 20,
+    lifeTime: 2,
+    timeRange: 2,
+    startSize: 50,
+    endSize: 20,
+    velocity:[0, 60, 0],
+    worldAcceleration: [0, -20, 0],
+    spinSpeedRange: 4});
+  transform.addShape(emitter.shape);
+}
+
+function setupSmoke() {
+  var transform = g_pack.createObject('Transform');
+  transform.parent = g_client.root;
+  transform.translate(-100, 0, 0);
+
+  var emitter = g_particleSystem.createParticleEmitter();
+  g_emitters.push(emitter);
+  emitter.setState(o3djs.particles.ParticleStateIds.BLEND);
+  emitter.setColorRamp(
+      [0, 0, 0, 1,
+       0, 0, 0, 0]);
+  emitter.setParameters({
+    numParticles: 20,
+    lifeTime: 2,
+    timeRange: 2,
+    startSize: 100,
+    endSize: 150,
+    velocity: [0, 200, 0], velocityRange: [20, 0, 20],
+    worldAcceleration: [0, -25, 0],
+    spinSpeedRange: 4});
+  transform.addShape(emitter.shape);
+}
+
+function setupWhiteEnergy() {
+  var transform = g_pack.createObject('Transform');
+  transform.parent = g_client.root;
+  transform.translate(0, 0, 0);
+
+  var emitter = g_particleSystem.createParticleEmitter();
+  g_emitters.push(emitter);
+  emitter.setState(o3djs.particles.ParticleStateIds.ADD);
+  emitter.setColorRamp(
+      [1, 1, 1, 1,
+       1, 1, 1, 0]);
+  emitter.setParameters({
+    numParticles: 80,
+    lifeTime: 2,
+    timeRange: 2,
+    startSize: 100,
+    endSize: 100,
+    positionRange: [100, 0, 100],
+    velocityRange: [20, 0, 20]});
+  transform.addShape(emitter.shape);
+}
+
+function setupRipples() {
+  var transform = g_pack.createObject('Transform');
+  transform.parent = g_client.root;
+  transform.translate(-200, 0, 300);
+
+  var emitter = g_particleSystem.createParticleEmitter(g_textures[1]);
+  g_emitters.push(emitter);
+  emitter.setState(o3djs.particles.ParticleStateIds.BLEND);
+  emitter.setColorRamp(
+      [0.7, 0.8, 1, 1,
+       1, 1, 1, 0]);
+  emitter.setParameters({
+    numParticles: 20,
+    lifeTime: 2,
+    timeRange: 2,
+    startSize: 50,
+    endSize: 200,
+    positionRange: [100, 0, 100],
+    billboard: false});
+  transform.addShape(emitter.shape);
+}
+
+function setupGoogle() {
+  var image = [
+    '.XXXX...XXXXX...XXXXX.',
+    'X....X.......X..X....X',
+    'X....X...XXXXX..X....X',
+    'X....X.......X..X....X',
+    '.XXXX...XXXXX...XXXXX.'];
+  var height = image.length;
+  var width = image[0].length;
+
+  // Make an array of positions based on the text image.
+  var positions = [];
+    for (var yy = 0; yy < height; ++yy) {
+        for (var xx = 0; xx < width; ++xx) {
+      if (image[yy].substring(xx, xx + 1) == 'X') {
+        positions.push([(xx - width * 0.5) * 10,
+                       -(yy - height * 0.5) * 10]);
+      }
+    }
+  }
+  var transform = g_pack.createObject('Transform');
+  transform.parent = g_client.root;
+  transform.translate(100, 200, 0);
+
+  var emitter = g_particleSystem.createParticleEmitter();
+  g_emitters.push(emitter);
+  emitter.setState(o3djs.particles.ParticleStateIds.ADD);
+  emitter.setColorRamp(
+      [1, 0, 0, 1,
+       0, 1, 0, 1,
+       0, 0, 1, 1,
+       1, 1, 0, 0]);
+  emitter.setParameters({
+    numParticles: positions.length * 4,
+    lifeTime: 2,
+    timeRange: 2,
+    startSize: 25,
+    endSize: 50,
+    positionRange: [2, 0, 2],
+    velocity: [1, 0, 1]},
+    function(particleIndex, parameters) {
+      //var index = particleIndex;
+      var index = Math.floor(pseudoRandom() * positions.length);
+      index = Math.min(index, positions.length - 1);
+      parameters.position[0] = positions[index][0];
+      parameters.position[1] = positions[index][1];
+    });
+  transform.addShape(emitter.shape);
+}
+
+function setupRain() {
+  var transform = g_pack.createObject('Transform');
+  transform.parent = g_client.root;
+  transform.translate(200, 200, 0);
+
+  var emitter = g_particleSystem.createParticleEmitter();
+  g_emitters.push(emitter);
+  emitter.setState(o3djs.particles.ParticleStateIds.BLEND);
+  emitter.setColorRamp(
+      [0.2, 0.2, 1, 1]);
+  emitter.setParameters({
+    numParticles: 80,
+    lifeTime: 2,
+    timeRange: 2,
+    startSize: 5,
+    endSize: 5,
+    positionRange: [100, 0, 100],
+    velocity: [0,-150,0]});
+  transform.addShape(emitter.shape);
+}
+
+function setupAnim(texture) {
+  var transform = g_pack.createObject('Transform');
+  transform.parent = g_client.root;
+  transform.translate(300, 0, 0);
+
+  var emitter = g_particleSystem.createParticleEmitter(g_textures[0]);
+  g_emitters.push(emitter);
+  emitter.setColorRamp(
+      [1, 1, 1, 1,
+       1, 1, 1, 1,
+       1, 1, 1, 0]);
+  emitter.setParameters({
+    numParticles: 20,
+    numFrames: 8,
+    frameDuration: 0.25,
+    frameStartRange: 8,
+    lifeTime: 2,
+    timeRange: 2,
+    startSize: 50,
+    endSize: 90,
+    positionRange: [10, 10, 10],
+    velocity:[0, 200, 0], velocityRange: [75, 15, 75],
+    acceleration: [0, -150, 0],
+    spinSpeedRange: 1});
+  transform.addShape(emitter.shape);
+}
+
+function setupBall() {
+  var transform = g_pack.createObject('Transform');
+  transform.parent = g_client.root;
+  transform.translate(-400, 0, -200);
+
+  var emitter = g_particleSystem.createParticleEmitter(g_textures[1]);
+  g_emitters.push(emitter);
+  emitter.setState(o3djs.particles.ParticleStateIds.BLEND);
+  emitter.setColorRamp(
+      [1, 1, 1, 1,
+       1, 1, 1, 0]);
+  emitter.setParameters({
+    numParticles: 300,
+    lifeTime: 2,
+    timeRange: 2,
+    startSize: 10,
+    endSize: 50,
+    colorMult: [1, 1, 0.5, 1], colorMultRange: [0, 0, 0.5, 0],
+    billboard: false},
+    function(particleIndex, parameters) {
+      var matrix = g_math.matrix4.rotationY(pseudoRandom() * Math.PI * 2);
+      g_math.matrix4.rotateX(matrix, pseudoRandom() * Math.PI);
+      var position = g_math.matrix4.transformDirection(matrix, [0, 100, 0]);
+      parameters.position = position;
+      parameters.orientation = o3djs.quaternions.rotationToQuaternion(matrix);
+    });
+  transform.addShape(emitter.shape);
+}
+
+function setupCube() {
+  var transform = g_pack.createObject('Transform');
+  transform.parent = g_client.root;
+  transform.translate(200, 0, -300);
+
+  var emitter = g_particleSystem.createParticleEmitter(g_textures[1]);
+  g_emitters.push(emitter);
+  emitter.setState(o3djs.particles.ParticleStateIds.ADD);
+  emitter.setColorRamp(
+      [1, 1, 1, 1,
+       0, 0, 1, 1,
+       1, 1, 1, 0]);
+  emitter.setParameters({
+    numParticles: 300,
+    lifeTime: 2,
+    timeRange: 2,
+    startSize: 10,
+    endSize: 50,
+    colorMult: [0.8, 0.9, 1, 1],
+    billboard: false},
+    function(particleIndex, parameters) {
+      var matrix = g_math.matrix4.rotationY(
+          Math.floor(pseudoRandom() * 4) * Math.PI * 0.5);
+      g_math.matrix4.rotateX(matrix,
+                             Math.floor(pseudoRandom() * 3) * Math.PI * 0.5);
+      parameters.orientation = o3djs.quaternions.rotationToQuaternion(matrix);
+      var position = g_math.matrix4.transformDirection(
+          matrix,
+          [pseudoRandom() * 200 - 100, 100, pseudoRandom() * 200 - 100]);
+      parameters.position = position;
+    });
+  transform.addShape(emitter.shape);
+}
+
+/**
+ * Called every frame.
+ * @param {!o3d.RenderEvent} renderEvent Rendering Information.
+ */
+function onrender(renderEvent) {
+  var elapsedTime = renderEvent.elapsedTime;
+  window.g_clock += elapsedTime * window.g_timeMult;
+
+  var cameraClock = window.g_clock * 0.3;
+  g_viewInfo.drawContext.view = g_math.matrix4.lookAt(
+      [Math.sin(cameraClock) * 1500, 500, Math.cos(cameraClock) * 1500], // eye
+      [0, 100, 0],   // target
+      [0, 1, 0]);  // up
+
+  g_clockParam.value = window.g_clock;
+}
+
+/**
+ * Remove any callbacks so they don't get called after the page has unloaded.
+ */
+function unload() {
+  if (g_client) {
+    g_client.cleanup();
+  }
+}
+</script>
+</head>
+<body onload="init();" onunload="unload();">
+<h1>Particles</h1>
+<br/>
+<!-- Start of O3D plugin -->
+<div id="o3d" style="width: 800px; height: 600px;"></div>
+<!-- End of O3D plugin -->
+</body>
+</html>
author	gspencer@google.com <gspencer@google.com@0039d316-1c4b-4281-b951-d872f2087c98>	2009-05-27 23:15:42 +0000
committer	gspencer@google.com <gspencer@google.com@0039d316-1c4b-4281-b951-d872f2087c98>	2009-05-27 23:15:42 +0000
commit	05b47f7a8c5451f858dc220df0e3a97542edace6 (patch)
tree	a2273d619f0625c9d44d40842845ccce2eac1045 /o3d/samples/particles.html
parent	5cdc8bdb4c847cefe7f4542bd10c9880c2c557a0 (diff)
download	chromium_src-05b47f7a8c5451f858dc220df0e3a97542edace6.zip chromium_src-05b47f7a8c5451f858dc220df0e3a97542edace6.tar.gz chromium_src-05b47f7a8c5451f858dc220df0e3a97542edace6.tar.bz2