User`s guide

Legacy Simulink 3D Animation Viewer
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In the legacy viewer, you cannot combine multiple figures in several tiles of a
MATLAB figure.
The legacy and default viewer have minor visual differences, such as:
In the legacy viewer, circles denote selected menu command options. In the default
viewer, checks denote selected menu command options.
In the legacy viewer, the status bar has no border. In the default viewer, the status
bar has a border.
Differences When Setting the DefaultViewer Property to 'internalv4'
Setting the DefaultViewer property to 'internalv4' also affects the behavior of
the vrplay function. When you create additional vrplay windows using File > New
Window, the window respects the current setting of the DefaultViewer property.
By default, the File > New Window command creates the new player window as a
MATLAB figure.
If you set the DefaultViewer property to 'internalv4', the File > New Window
command creates the new player window as in previous releases.