Help Hints    Click on the items to get some short hints...

Level of detail    Level of Detail allows VRML browser to choose between several representations of given objects to increase the frame rate of the scene, but it also increases the amount of data. If you disable this option, specify the level which you want to use.

The most developped representation     Each house includes the pieces of sophisticated VRML code and textures, usually handmade, so there won't be probably the large number of houses like this.

Large texture representation     Each house is represented by simple texture which whole building. This can be pretty fast but the data may be large. This is probably the most common representation thanks to its easy creation.

Small textures representation     Each house is represented by a coloured shape covered by small textures like windows, doors and so. This decreases the amount of data when compared to higher representation but in some cases the rendering can be a bit slower than the second representation.

Simple geometry representation     Each house is represented by simple couloured shape. This is the fastest and the smallest representation, on the other hand its simplicity doesn't provide very good looking model, especially when viewed from a short distance.

Substitution of levels    If the chosen representation is not available for particular object, nearest higher or lower level will be used as substitution.

Map    Map is a java plug-in placed in one frame of the page. Map can decrease the performance, however it is very useful for navigation.

Note for Cosmo Player users: If your VRML browser gets stuck frequently, you should switch off displaying of the map.

Street Guide    Street guide shows you some pieces of information about the places you're walking through. If the network connection is rather slow, you may turn this option off to get smooth navigation through the city.

Expert layout    Expert layout will show you, how the processes and all the stuff go among the plug-ins, client and server. This can be interesting for those, who want to know, how the system is designed.

No Frames    Normally the page is divided into several frames. If this item is checked, you will have only one resisable window with a VRML plugin, which allows you to set up its width and height according to speed of your machine.

The Daytime    You can walk through the streets during the several different daytimes. In the present the sunny day and the night are prepared. In fact, the only differrence beetween these is the background image and the shining street lamps.

The smallest surrounding     If this item is selected, then the smallest possible surrounding around the visitor is downloaded. The smallest suurounding contains only the neighbouring sectors. This option can increase the rendering speed, but the new areas are downloaded very often.

The whole part     It is strongly recommended not to choose this option when the city model is too large, otherwise it can cause overloading of your system.

The specified suuround    Each pair of sectors has assigned a number specifying visibility from one sector to another. When you input a number, only the sectors with visibility smaller than the specitied number will be downloaded. The picture shows the example (option set to 20).

The normal layout    The normal layout shows several items, like map and other information.

Set this configuration    By clicking on this button you will submit actual configuration to the server and you return to the reconfigured main page.

Set default configuration    By clicking on this button you will set the default configuration for the items on actual panel.

Set all default    By clicking on this button you will set the default configuration for all the items on all the panels.

Apply basic setting    By clicking on this button you will set the other variables according to these two parametres. You can continue editing the configuration or click directly to 'Set' button to send the values and continue.

Plugin window size    Size of the frame for VRML plugin can evolve the performance. When the window is small the rendering runs faster, but the experience is not so good.

Computer performance     By selecting the perfornace level of your computer, you set up several variables according to it. An example of a good machine, as we think, is a PC with Pentium II^® processor and a decent 3D accelerated graphics card.

Network connection     By selecting the sped level of your network connection, you set up several variables according to it. Don't try to select the fast one, when connected using a modem.

The Browser    If you have Cortona VRML Client (version 2.2 and higher) installed on your machine, you can profite from a new version of EAI connection between the map java applet and the VRML browser.

Starting Viewpoint    You can choose one of the predefined locations to start a free walk through the city.

Guided Tour    When guided tour is checked you will be transpored around the most interesting places in the city. The tour is automatic and can be controlled by the user.