In some cases the needed navigation module in Cortona is not activated. This may happen on Windows 7 OS with the Internet Explorer’s Protected Mode enabled. This may also happen when local VRML scene has never been loaded and user attempts to load VRML scene on a web site. This is to do with the Internet Explorer security settings: when viewing a web site with Cortona3D publication, the system does not allow Cortona3D to store the navigation modules in the registry. This issue can affect the following actions:
- Scroll wheel doesn't zoom in or out; and
- Rotate function does not rotate the object (left click and drag).
There are several different ways to fix this problem:
- Launch the standard VRML scene:
- For 32-bit OS: %PROGRAMFILES%\CommonFiles\ParallelGraphics\Cortona\Help\rose.wrl For 64-bit OS: %PROGRAMFILES(x86)%\Common Files\ParallelGraphics\Cortona\Help\rose.wrl
- Launch the web site with Cortona3D publication, start 3D, right click in Cortona3, select Properties > Help > User’s Guide (click Show button on the left), select the chapter Using Cortona3D Viewer in HTML Documents, scroll to the bottom, select the link See how it works.
- Reinstall Cortona3D; on the last page of the installer, make sure the Show sample VRML scene option is selected.
Any of these options launch the standard VRML scene from the local disk, which allows Cortona3D to save the correct keys in the registry; this should resolve navigation problems.