User`s guide

Build Virtual Worlds to Visualize Dynamic Simulations
1-5
Simulink, or SimMechanics. If your computer does not already have a graphics card
with hardware 3-D acceleration, consider installing such a card to enhance graphics
performance.
You build and view the virtual reality world models using VRML (Virtual Reality
Modeling Language).
In addition to the installed VRML editor, 3D World Editor, you can configure your
environment to use:
•
The Ligos
®
V-Realm Builder, which is included in the Simulink 3D Animation
software for Windows
®
platforms.
• Any third-party VRML editor
• The MATLAB editor or a third-party text editor
In addition to the installed Simulink 3D Animation viewer (the default), you can use one
of these viewers to display your virtual reality worlds:
• Simulink 3D Animation Web Viewer
• Orbisnap, on a client computer
To help decide which VRML editor and viewer to use, see “VRML Editors” and “VRML
Viewers”. For more information about installing a VRML editor or VRML viewer, see
“Install VRML Viewer”.
Use joystick and space mouse input devices to provide input for dynamic simulation
visualizations.
TCP/IP Connection
The Simulink 3D Animation product uses a TCP/IP connection to a VR client for
communicating with the Simulink 3D Animation Viewer, as well for connecting to
VRML-enabled Web browser. You can verify the TCP/IP connection between the host and
client computers by using the ping command from a command-line prompt. If there are
problems, you must first fix the TCP/IP protocol settings according to the documentation
for your operating system.
LD_LIBRARY_PATH Environment Variable (UNIX)
If your system does not have the OpenGL
®
software properly installed when you run the
Simulink 3D Animation Viewer, you might see an error message like the following in the
MATLAB window: