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     Geant4 - an Object-Oriented Toolkit for Simulation in HEP
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               examples/extended/visualization/perspective
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This example is another example of using the Geant Visualization
System as a "stand-alone" graphics library and viewer.  See
examples/extended/visualization/standalone for a simpler
introductory explanation.

The particular feature of this example is the addition of "perspective
lines".  The direction of these lines is controlled by

  /perspectiveDemo/optionString x

See vis.mac.

Notes:
- /perspectiveDemo/scene is not used at present.
- visXm.mac is specially for use with G4UIXm and OGL*Xm.

John Allison
11th June 2012