Here are the requirements for viewing simulations using demodyn:
web browser with Java support, recommended MS Internet Explorer 6.0 or newer
VRML plugin, recommended Cortona VRML Client 4.1 or newer, can be downloaded at Parallel Graphics
fast computer (frequency at least 500 MHz, recommended 1 GHz and a 3D-accelerated graphics card)
Under normal circumstances a Java applet can communicate only with its home server. Because demodyn needs to cooperate with the Dynast server, it has to be placed (and the simulations, too) at the same server, i.e. virtual.cvut.cz. In the following text we suppose you are using simulations from this server. An alternative way (viewing simulations from local disk) is discussed in section Running demodyn from local disk.
The simulations are available as HTML pages with embedded demodyn applet, which is run automatically after opening the page with a web browser.
There is a VRML browser window showing the 3D model in the left part of the screen. We suppose the reader is already familiar with the browser's interface (help is available in the context menu). You can rotate or zoom the view at any time during the simulation.
If you don't see the VRML browser window it probably means that the browser was not correctly installed and you should reinstall it.
The right part contains the applet's user interface, which is discussed in the following section.
In case of problems make sure that you enabled Java applets in your browser. If you installed Java Runtime Environment from Sun, switch it off and use Microsoft Virtual Machine. The problem can be often identified by opening the Java console.