summaryrefslogtreecommitdiffstats
path: root/o3d/samples/rotatemodel.html
diff options
context:
space:
mode:
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/rotatemodel.html
parent5cdc8bdb4c847cefe7f4542bd10c9880c2c557a0 (diff)
downloadchromium_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/rotatemodel.html')
-rw-r--r--o3d/samples/rotatemodel.html247
1 files changed, 247 insertions, 0 deletions
diff --git a/o3d/samples/rotatemodel.html b/o3d/samples/rotatemodel.html
new file mode 100644
index 0000000..eb9c2da
--- /dev/null
+++ b/o3d/samples/rotatemodel.html
@@ -0,0 +1,247 @@
+<!--
+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 Tutorial A2
+
+In this tutorial, we show how to perform transformations on a scene that
+we have loaded.
+-->
+<!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>
+Tutorial A2: Transformations
+</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.camera');
+o3djs.require('o3djs.math');
+o3djs.require('o3djs.rendergraph');
+o3djs.require('o3djs.pack');
+o3djs.require('o3djs.scene');
+
+// Events
+// Run the init() function once the page has finished loading.
+window.onload = init;
+
+// global variables
+var g_o3d;
+var g_math;
+var g_client;
+var g_viewInfo;
+var g_pack;
+var g_keyPressDelta = 0.05;
+var g_finished = false; // for selenium testing
+
+// root node of scene
+var g_sceneRoot;
+
+/**
+ * Loads a scene into the transform graph.
+ * @param {!o3d.Pack} pack Pack to load scene into.
+ * @param {string} fileName filename of the scene.
+ * @param {!o3d.Transform} parent parent node in the transform graph to
+ * which to load the scene into.
+ */
+function loadScene(pack, fileName, parent) {
+ // Get our full path to the scene
+ var scenePath = o3djs.util.getCurrentURI() + fileName;
+
+ // Load the file given the full path, and call the callback function
+ // when its done loading.
+ o3djs.scene.loadScene(g_client, pack, parent, scenePath, callback);
+
+ /**
+ * Our callback is called once the scene has been loaded into memory
+ * from the web or locally.
+ * @param {!o3d.Pack} pack The pack that was passed in above.
+ * @param {!o3d.Transform} parent The parent that was passed in above.
+ * @param {*} exception null if loading succeeded.
+ */
+ function callback(pack, parent, exception) {
+ if (exception) {
+ alert('Could not load: ' + fileName + '\n' + exception);
+ return;
+ }
+ // Get a CameraInfo (an object with a view and projection matrix)
+ // using our javascript library function
+ var cameraInfo = o3djs.camera.getViewAndProjectionFromCameras(
+ parent,
+ g_client.width,
+ g_client.height);
+
+ // Copy the view and projection to the draw context.
+ g_viewInfo.drawContext.view = cameraInfo.view;
+ g_viewInfo.drawContext.projection = cameraInfo.projection;
+
+ // Generate draw elements and setup material draw lists.
+ o3djs.pack.preparePack(pack, g_viewInfo);
+
+ g_finished = true; // for selenium testing
+ }
+}
+
+/**
+ * Creates the client area.
+ */
+function init() {
+ o3djs.util.makeClients(initStep2);
+}
+
+/**
+ * Initializes O3D and loads the scene into the transform graph.
+ * @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;
+
+ // 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 a transform node to act as the 'root' of the scene
+ g_sceneRoot = g_pack.createObject('Transform');
+ // Attach it to the root of the transform graph.
+ g_sceneRoot.parent = g_client.root;
+
+ // Load the scene into the transform graph as a child of the g_sceneRoot.
+ loadScene(g_pack, 'assets/teapot.o3dtgz', g_sceneRoot);
+
+ // Execute keyPressedCallback(..) when we detect a keypress on the document.
+ window.document.onkeypress = keyPressedCallback;
+}
+
+/**
+ * Function performing the rotate action in response to a key-press.
+ * Rotates the scene based on key pressed. (w ,s, a, d). Note that the x and
+ * y-axis referenced here are relative to the current view of the scene.
+ * @param {keyPressed} The letter pressed, in lower case.
+ * @param {delta} The angle by which the scene should be rotated.
+ * @return true if an action was taken.
+ */
+function keyPressedAction(keyPressed, delta) {
+ var actionTaken = false;
+ switch(keyPressed) {
+ case 'a':
+ g_sceneRoot.localMatrix =
+ g_math.matrix4.mul(g_sceneRoot.localMatrix,
+ g_math.matrix4.rotationY(-delta));
+ actionTaken = true;
+ break;
+ case 'd':
+ g_sceneRoot.localMatrix =
+ g_math.matrix4.mul(g_sceneRoot.localMatrix,
+ g_math.matrix4.rotationY(delta));
+ actionTaken = true;
+ break;
+ case 'w':
+ g_sceneRoot.localMatrix =
+ g_math.matrix4.mul(g_sceneRoot.localMatrix,
+ g_math.matrix4.rotationX(-delta));
+ actionTaken = true;
+ break;
+ case 's':
+ g_sceneRoot.localMatrix =
+ g_math.matrix4.mul(g_sceneRoot.localMatrix,
+ g_math.matrix4.rotationX(delta));
+ actionTaken = true;
+ break;
+ }
+ return actionTaken;
+}
+
+/**
+ * Callback for the keypress event.
+ * Invokes the action to be performed for the key pressed.
+ * @param {event} keyPress event passed to us by javascript.
+ */
+function keyPressedCallback(event) {
+ event = event || window.event;
+
+ // Ignore accelerator key messages.
+ if (event.metaKey)
+ return;
+
+ var keyChar = String.fromCharCode(o3djs.event.getEventKeyChar(event));
+ // Just in case they have capslock on.
+ keyChar = keyChar.toLowerCase();
+
+ if (keyPressedAction(keyChar, g_keyPressDelta)) {
+ o3djs.event.cancel(event);
+ }
+}
+
+/**
+ * Resets the view of the scene by resetting its local matrix to the identity
+ * matrix.
+ */
+function resetView() {
+ g_sceneRoot.identity();
+}
+
+</script>
+</head>
+<body>
+<h1>Transformations</h1>
+This tutorial shows how to perform transformations on a scene that
+has been loaded.
+<br/>
+<!-- Start of O3D plugin -->
+<div id="o3d" style="width: 600px; height: 600px;"></div>
+<!-- End of O3D plugin -->
+<p>Use W, S, A, D to rotate.</p>
+<form name="default_form" action="#" method="get">
+<input type="button" value="Reset view" onclick="resetView()" />
+<input type="button" value="W" id="W"
+ onclick="keyPressedAction('w', g_keyPressDelta);" />
+<input type="button" value="S" id="S"
+ onclick="keyPressedAction('s', g_keyPressDelta);" />
+<input type="button" value="A" id="A"
+ onclick="keyPressedAction('a', g_keyPressDelta);" />
+<input type="button" value="D" id="D"
+ onclick="keyPressedAction('d', g_keyPressDelta);" />
+</form>
+</body>
+</html>
generated by cgit v1.1 at 2025-01-22 13:02:42 +0000