Close virtual world
This method changes the virtual world from an opened to a closed state:
If the world was opened more than once, you must use
an appropriate number of
close calls before the
virtual world closes.
vrworld_object is a vector of
all associated virtual worlds close.
If the virtual world is already closed,
Opening and closing virtual worlds is a mechanism of memory management. When the system needs more memory and the virtual world is closed, you can discard its contents at any time.
Generally, you should close a virtual world when you no longer
need it. This allows you to reuse the memory it occupied. The
associated with this virtual world stay valid after it is closed,
so the virtual world can be opened again without creating a new
myworld = vrworld('vrpend.wrl') open(myworld) close(myworld)