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authorgspencer@google.com <gspencer@google.com@0039d316-1c4b-4281-b951-d872f2087c98>2009-05-27 23:15:42 +0000
committergspencer@google.com <gspencer@google.com@0039d316-1c4b-4281-b951-d872f2087c98>2009-05-27 23:15:42 +0000
commit05b47f7a8c5451f858dc220df0e3a97542edace6 (patch)
treea2273d619f0625c9d44d40842845ccce2eac1045 /o3d/samples/instance-override.html
parent5cdc8bdb4c847cefe7f4542bd10c9880c2c557a0 (diff)
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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
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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.
+-->
+
+<!--
+O3D Instancing Override example.
+
+Display a single instanced object but change some shader parameters for each
+instance by putting them on the transform.
+-->
+<!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>
+Instancing with Overrides.
+</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.rendergraph');
+o3djs.require('o3djs.primitives');
+o3djs.require('o3djs.effect');
+
+// Events
+// init() once the page has finished loading.
+// unload() when the page is unloaded.
+window.onload = init;
+window.onunload = unload;
+
+// global variables
+var g_o3d;
+var g_math;
+var g_client;
+var g_viewInfo;
+var g_pack;
+var g_clock = 0;
+var g_timeMult = 1;
+var g_finished = false; // for selenium testing.
+
+function createInstances(pack, shape) {
+ // make a grid of transforms and put a teapot instance on each one
+ for (var x = 0; x < 10; x++) {
+ for (var y = 0; y < 10; y++) {
+ for (var z = 0; z < 10; z++) {
+ var transform = pack.createObject('Transform');
+ transform.parent = g_client.root;
+ transform.addShape(shape);
+ transform.translate((x - 4.5) * 100,
+ (y - 4.5) * 100,
+ (z - 4.5) * 100);
+ transform.createParam('colorMult', 'ParamFloat4').value = [
+ x * 0.1,
+ y * 0.1,
+ z * 0.1,
+ 1.0];
+ }
+ }
+ }
+}
+
+/**
+ * Creates the client area.
+ */
+function init() {
+ o3djs.util.makeClients(initStep2);
+}
+
+/**
+ * Initializes O3D and creates a sphere.
+ * @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;
+ g_client = o3dElement.client;
+
+ // Creates a pack to manage our resources/assets
+ g_pack = g_client.createPack();
+
+ // Create the render graph for a view.
+ g_viewInfo = o3djs.rendergraph.createBasicView(
+ g_pack,
+ g_client.root,
+ g_client.renderGraphRoot);
+
+ // Create our projection matrix, with a vertical field of view of 45 degrees
+ // a near clipping plane of 0.1 and far clipping plane of 10000.
+ g_viewInfo.drawContext.projection = g_math.matrix4.perspective(
+ g_math.degToRad(45),
+ g_client.width / g_client.height,
+ 0.1,
+ 10000);
+
+ // Create and load the effect.
+ var effect = g_pack.createObject('Effect');
+ o3djs.effect.loadEffect(effect, 'shaders/phong-with-colormult.shader');
+
+ // Create a Material for the effect.
+ var material = g_pack.createObject('Material');
+
+ // Apply our effect to this material.
+ material.effect = effect;
+
+ // Set the material's drawList.
+ material.drawList = g_viewInfo.performanceDrawList;
+
+ // Create the params the effect needs on the material.
+ effect.createUniformParameters(material);
+
+ // Set the material parameters.
+ material.getParam('lightWorldPos').value = [1000, 1000, 0];
+ material.getParam('lightIntensity').value = [1, 1, 1, 1];
+ material.getParam('ambientIntensity').value = [0.1, 0.1, 0.1, 1];
+ material.getParam('ambient').value = [1, 1, 1, 1];
+ material.getParam('diffuse').value = [1, 1, 1, 1];
+ material.getParam('specular').value = [0.5, 0.5, 0.5, 1];
+ material.getParam('shininess').value = 50;
+
+ // Create a sphere.
+ var shape = o3djs.primitives.createSphere(g_pack, material, 25, 10, 12);
+
+ createInstances(g_pack, shape);
+
+ // Setup an onrender callback for animation.
+ g_client.setRenderCallback(onrender);
+
+ g_finished = true; // for selenium testing.
+}
+
+// spin the camera.
+function onrender(render_event) {
+ // Get the number of seconds since the last render.
+ var elapsedTime = render_event.elapsedTime;
+ g_clock += elapsedTime * g_timeMult;
+
+ var x = Math.sin(g_clock * 0.3) * 1000;
+ var z = Math.cos(g_clock * 0.3) * 1000;
+ var y = Math.sin(g_clock * 0.7) * 500;
+
+ g_viewInfo.drawContext.view = g_math.matrix4.lookAt(
+ [x, y, z], // eye
+ [0, 0, 0], // target
+ [0, 1, 0]); // up
+}
+
+/**
+ * Removes any callbacks so they don't get called after the page has unloaded.
+ */
+function unload() {
+ if (g_client) {
+ g_client.cleanup();
+ }
+}
+</script>
+</head>
+<body>
+<h1>Instancing with overrides</h1>
+1000 Instances of the same sphere.
+<br/>
+<!-- Start of O3D plugin -->
+<div id="o3d" style="width: 800px; height: 600px;"></div>
+<!-- End of O3D plugin -->
+</body>
+</html>
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