The following are some tips and settings to try if the page transitions are slow or jerky in the LiveWindow.

On some systems, hardware acceleration actually slows down the page transitions to the point where they become unusable. As a result, starting with version 2.0 VirtMus is configured by default with the Direct3D pipeline disabled. On some other systems however, this hardware acceleration might works as intended and actually speed things up.

To re-enable this option, or to try different settings:

  • Exit VirtMus
  • Locate the directory that VirtMus is installed in
  • Edit the virtmus.conf file in the etc sub-directory with Notepad or some other plain text editor (do not use Microsoft Word!).
  • Modify the line that starts with default_options and set one of the following options to true or false:
    • -J-Dsun.java2d.d3d
    • -J-Dsun.java2d.opengl
  • Restart VirtMus (these options are only read at start-up)

For example, to re-enable the Direct3D pipeline, use -J-Dsun.java2d.d3d=true (or simply remove the option altogether). Replacing the -J-Dsun.java2d.d3d option with -J-Dsun.java2d.opengl=true will use OpenGL instead of Direct3D.

The results obtained will depend on the type of graphics card present and on how good the installed video drivers are.

For full details and a complete list of options, see:

Sections 3.1.3 through 3.1.5 are particularly relevant for the Windows OS.