165 lines
8.0 KiB
HTML
165 lines
8.0 KiB
HTML
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
|
<meta name="GENERATOR" content="Mozilla/4.6 [en-gb]C-CCK-MCD NetscapeOnline.co.uk (Win95; I) [Netscape]">
|
|
<title>Demos</title>
|
|
</head>
|
|
<body text="#000000" bgcolor="#FFFFFF" link="#0000FF" vlink="#990066" alink="#FF0000">
|
|
<img SRC="images/OpenSceneGraphBanner_Distribution.jpg" height=77 width=640>
|
|
|
|
<table>
|
|
<tr>
|
|
<td><a href="index.html">Index</a> </td>
|
|
<td><a href="introduction.html">Introduction</a> </td>
|
|
<td><a href="contents.html">Contents</a> </td>
|
|
<td><a href="install.html">Install</a> </td>
|
|
<td><a href="dependencies.html">Dependencies</a> </td>
|
|
<td><a href="demos.html">Demos</a> </td>
|
|
<td><a href="data.html">Data</a> </td>
|
|
<td><a href="sgv.html">Viewer</a> </td>
|
|
<td><a href="stereo.html">Stereo</a> </td>
|
|
<td><a href="plan.html">Plan</a> </td>
|
|
<td><a href="documentation.html">Reference Guides</a> </td>
|
|
</tr>
|
|
</table>
|
|
|
|
<h2>
|
|
<a NAME="Running the demos"></a><u>Running the demos</u></h2>
|
|
<p>
|
|
Once the OpenSceneGraph is <a href="install.html">installed</a> you will need place the location where it was installed on the you systems paths
|
|
environmental variables, and then download the <a href="data.html">demo data</a> and set the <b>OSG_FILE_PATH</b> so that the file loading can locate the datasets.
|
|
It is probably worth setting you autoexec.bat, .bashrc or.tcsh etc to pick up on these settings so that next time you log in
|
|
everything is in easy reach.
|
|
</p>
|
|
<li>Windows:</li>
|
|
<ul>
|
|
<b>set PATH = C:/all/the/exisitng/paths;C:/OpenSceneGraph/bin</b>
|
|
<br><b>set OSG_FILE_PATH = C:/OpenSceneGraph-Data;C:/OpenSceneGraph-Data/Images;C:/OpenSceneGraph-Data/Fonts</b>
|
|
</ul>
|
|
|
|
</p>
|
|
<li>Unix</li>
|
|
<ul>
|
|
<b>export PATH = ${PATH}:/home/myaccount/OpenSceneGraph/bin</b>
|
|
<br><b>export LD_LIBRARY_PATH = ${LD_LIBRARY_PATH}:/home/myaccount/OpenSceneGraph/lib</b>
|
|
<br><b>export OSG_FILE_PATH = /home/myaccount/OpenSceneGraph-Data:C:/OpenSceneGraph-Data/Images:C:/OpenSceneGraph-Data/Fonts</b>
|
|
<br>or
|
|
<br><b>setenv PATH ${PATH}:/home/myaccount/OpenSceneGraph/bin</b>
|
|
<br><b>setenv LD_LIBRARY_PATH = ${LD_LIBRARY_PATH}:/home/myaccount/OpenSceneGraph/lib</b>
|
|
<br><b>setenv OSG_FILE_PATH /home/myaccount/OpenSceneGraph-Data:C:/OpenSceneGraph-Data/Images:C:/OpenSceneGraph-Data/Fonts</b>
|
|
</ul>
|
|
|
|
<p>
|
|
All the demos run on the commandline, most requiring parameters, such as what file to load, if you are in any doubt
|
|
just run the application and it will either run, or provide help on what options it accepts.
|
|
</p>
|
|
|
|
<table>
|
|
<tr>
|
|
<td><a href="sgv.html"><img src="images/sgv_cow.jpg" width=128 height=100 border=0></a> </td>
|
|
<td><b>sgv cow.osg</b></td>
|
|
<td>The scene graph viewer demo uses osgGLUT::Viewer to bring up a basic viewer. To find out what
|
|
command line arguments it takes simply run sgv without any arguments. To load a model simple
|
|
run sgv filename.ext. The osgGLUT::Viewer provides an extensive set of operations that can be
|
|
used to display information about the loaded database such as peformance stas, through to
|
|
output a snapshot of the screen, which is how these thumbnails were created. For a full list
|
|
of key presses and mouse interaction read the <a href="sgv.html">sgv</a> documentaion.</td>
|
|
</tr>
|
|
<tr>
|
|
<td><a href="stereo.html"><img src="images/sgv_stereo.jpg" width=128 height=100 border=0></a> </td>
|
|
<td><b>sgv -stereo cessna.osg</b></td>
|
|
<td>The scene graph viewer also supports anaglyphic, quad buffered, and split screen stereo modes,
|
|
for a full list of options and environmental variables see the <a href="stereo.html">stereo</a> documentaion.</td>
|
|
</tr>
|
|
<tr>
|
|
<td><img src="images/hangglide.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>hangglide</b></td>
|
|
<td>The hang glide demo creates a simple flying site (Don Burns local hang glide site infact!),
|
|
demonstrating how to create simple terrain, trees and skydomes, and how to implement a simple
|
|
flight camera manipulator to allow the user to fly around.
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><img src="images/osgbillboard.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>osgbillboard lz.rgb</b></td>
|
|
<td>Demonstrates how to create the various types of billboard supported by the OpenSceneGraph. Billboards
|
|
are typically used for trees or particles effects.
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><img src="images/osgcube.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>osgcube</b></td>
|
|
<td>Simplest of all demos, create a cube geometry and spin it!
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><img src="images/osghud.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>osghud glider.osg</b></td>
|
|
<td>Very similar to the basic sgv demo, but adds an othographic projection over the top of the main 3D view
|
|
to create a head up display effect. Also demonstrates how to use osgText.
|
|
.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td><img src="images/osgimpostor.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>osgimpostor Town.osg</b></td>
|
|
<td>OpenSceneGraph is unique amoung scene graph in the fact that it supports dynamically updated impostors natively,
|
|
and this demo uses osgUtil::InsertImpostorVisitor to traverse the loaded scene graph inserting osg::Importor nodes in place of groups
|
|
and LOD, so you can add Impostor into any of your own datasets! The scene graph then
|
|
takes over full repsonsibility for managing required multistage rendering all dynamically at runtime, whilest
|
|
keeping it neatly encapsulated making it incrediable easy to use. The Impostor support demonstrates how
|
|
powerful the multi-stage multi-pass rendering framework that the OpenSceneGraph has, almost all other scene
|
|
graphs have to hardwire such effects into them and require significant application coding to do so.
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><img src="images/osgreflect.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>osgreflect cow.osg</b></td>
|
|
<td>An example of how to set up planar reflections using the standard multi-pass stencil buffer algorithm. This
|
|
is all handled within the scene graph, so there is no need to hardwire multi-pass effects into your own
|
|
application.
|
|
.</td>
|
|
</tr>
|
|
<tr>
|
|
<td><img src="images/osgscribe.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>osgscribe.cow.osg</b></td>
|
|
<td>An example of how to decorate your scene graph geometry for useful effects such as scribing. This demo
|
|
uses two instances of your model, the first one uses the state values set in your scene graph, the
|
|
second instance override the polygmode to render it as wireframe, and with a polyon offset to ensure it
|
|
is seen from all angles. These two instance are grouped together and then are treated like any other
|
|
scene graph.
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><img src="images/osgstereoimage.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>osgstereoimage left.rgb right.rgb</b></td>
|
|
<td>An example of use node maks to select different parts of the scene graph for different traversals, in this
|
|
case two seperate images are drawn for the left and right eyes to generate a stereo 3D image from two flat
|
|
images!
|
|
.</td>
|
|
</tr>
|
|
<tr>
|
|
<td><img src="images/osgtext.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>osgtext</b></td>
|
|
<td>An example showing how to creating the various different typs of text that the osgText library supports.
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><img src="images/osgtexture.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>osgtexture lz.rgb reflect.rgb</b></td>
|
|
<td>An example showing how to creating the textured quads, each with different texture parameters, including
|
|
anistrophic filtering and texture compression!
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><img src="images/osgviews.jpg" width=128 height=100 border=0> </td>
|
|
<td><b>osgviews.cow.osg</b></td>
|
|
<td>An example of multiple viewports all running at once.
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
</body>
|
|
</html>
|