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| 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/displayfps.html | |
| parent | 5cdc8bdb4c847cefe7f4542bd10c9880c2c557a0 (diff) | |
| download | chromium_src-05b47f7a8c5451f858dc220df0e3a97542edace6.zip chromium_src-05b47f7a8c5451f858dc220df0e3a97542edace6.tar.gz chromium_src-05b47f7a8c5451f858dc220df0e3a97542edace6.tar.bz2 | |
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
Diffstat (limited to 'o3d/samples/displayfps.html')
| -rw-r--r-- | o3d/samples/displayfps.html | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/o3d/samples/displayfps.html b/o3d/samples/displayfps.html new file mode 100644 index 0000000..fb96f89 --- /dev/null +++ b/o3d/samples/displayfps.html @@ -0,0 +1,219 @@ +<!-- +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. +--> + +<!-- +--> +<!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> +Compute and Display FPS. +</title> +<style type="text/css"> + html, body { + height: 100%; + margin: 0; + padding: 0; + border: none; + } +</style> +<!-- Our javascript code --> +<script type="text/javascript" src="o3djs/base.js"></script> +<script type="text/javascript"> +o3djs.require('o3djs.util'); +o3djs.require('o3djs.math'); +o3djs.require('o3djs.rendergraph'); +o3djs.require('o3djs.primitives'); +o3djs.require('o3djs.effect'); +o3djs.require('o3djs.fps'); + +// Events +// Run the init() function 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_pack; +var g_viewInfo; +var g_o3dWidth = -1; +var g_o3dHeight = -1; +var g_o3dElement; +var g_clock = 0; +var g_timeMult = 1; +var g_finished = false; // for selenium testing +var g_eye; +var g_fpsManager; + +/** + * Creates the client area. + */ +function init() { + o3djs.util.makeClients(initStep2); +} + +/** + * Initializes O3D, loads the effect, and draws the cube. + * @param {Array} clientElements Array of o3d object elements. + */ +function initStep2(clientElements) { + // Initialize global variables and libraries. + g_o3dElement = clientElements[0]; + g_o3d = g_o3dElement.o3d; + g_math = o3djs.math; + g_client = g_o3dElement.client; + + // Create 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 an FPS manager. + g_fpsManager = o3djs.fps.createFPSManager(g_pack, + g_client.width, + g_client.height, + g_client.renderGraphRoot); + + // Create a material. + var myMaterial = g_pack.createObject('Material'); + + // Set the material's drawList for opaque objects. + myMaterial.drawList = g_viewInfo.performanceDrawList; + + // Create and load the effect. + var effect = g_pack.createObject('Effect'); + o3djs.effect.loadEffect(effect, 'shaders/vertex-color.shader'); + + // Apply our effect to this material and create the params the effect needs + // on the material. + myMaterial.effect = effect; + effect.createUniformParameters(myMaterial); + + // Draw a cube using the effect we have loaded. + var myShape = o3djs.primitives.createRainbowCube(g_pack, + myMaterial, + 0.5); + + // Attach the cube to the root of the transform graph. + var root = g_client.root; + root.addShape(myShape); + + // Set the projection and viewProjection matrices based + // on the o3d plugin size by calling resize(). + resize(); + + // Set our render callback for animation. + // This sets a function to be executed every time a frame is rendered. + g_client.setRenderCallback(onrender); + + g_finished = true; // for selenium testing. +} + +// Sets the projection matrix based on the size of the plugin. +function resize() { + var newWidth = g_client.width; + var newHeight = g_client.height; + + if (newWidth != g_o3dWidth || newHeight != g_o3dHeight) { + g_o3dWidth = newWidth; + g_o3dHeight = newHeight; + + // Set the projection matrix, with a vertical field of view of 45 degrees + // a near clipping plane of 0.1 and far clipping plane of 100. + g_viewInfo.drawContext.projection = g_math.matrix4.perspective( + g_math.degToRad(45), + g_o3dWidth / g_o3dHeight, + 0.1, + 100); + + g_fpsManager.resize(g_o3dWidth, g_o3dHeight); + } +} + +// Animates the cube. +// This function executes on each frame. +// @param {!o3d.RenderEvent} renderEvent Info about rendering. +function onrender(renderEvent) { + // Get the number of seconds since the last render. + var elapsedTime = renderEvent.elapsedTime; + + g_fpsManager.update(renderEvent); + + // Rotate frame rate independently. + g_clock += 2.0 * elapsedTime * g_timeMult; + + // Eye-position, the position of the camera. + var eye = [ + 0.0 + Math.sin(g_clock) * 1.5, + 1.0, + 0.0 + Math.cos(g_clock) * 1.5 + ]; + + var target = [0, 0, 0]; + var up = [0, 1, 0]; + + g_viewInfo.drawContext.view = g_math.matrix4.lookAt(eye, target, up); + + resize(); +} + +/** + * 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> +<table width="100%" style="height:100%;"> + <tr><td> +<h1>Show FPS</h1> +<p> +This example shows computing and displaying FPS (Frames Per Second) +</p></td></tr> +<tr><td height="100%"> +<div id=o3d" style="width: 100%; height: 100%;"></div> +</td></tr></table> +</body> +</html> |