NAME

       lightspeed - Shows how objects moving at speeds near the speed of light look like.

SYNOPSIS

       lightspeed [-hsa] [object]

DESCRIPTION

       Light  Speed!  is a simulator which can illustrate the effects of special relativity on the appearance of
       objects travelling at ultra-high speeds. Depending on the particular speed,  and  one's  point  of  view,
       relativistic  effects  can  cause the object to appear shorter, longer, brighter, darker, deformed and/or
       off-color.

CONTROLS

       To adjust the velocity, use the slider along the right edge of the main window. You can also  type  in  a
       value,  using  the entry at the top right (press <Enter> once it is in). To change the units shown, press
       the button to the right of the entry, and it will cycle through a small list.

       The object travels in the positive-x direction, which can be visually checked by  activating  Objects  ->
       Coordinate axes.

       Most  interactive  control is performed with the mouse. By holding down a particular button, and dragging
       the pointer around, various camera motions can be obtained:

          Left button:  Revolve camera around view target

          Left button + Shift key:  Revolve view target around camera

          Middle button:  Translate camera left, right, up or down

          Right button:  Dolly in or out

       The first and last motions are generally the most useful.  Should the camera become difficult to  control
       at any point, it may be re-initialized by selecting Camera -> Reset View.

OPTIONS

       -h, --help
              Print this help screen

       -s, --simple
              Use simplified interface

       -a, --advanced
              Use advanced interface (default)

       object 3D file to load on startup (.3DS or .LWO)

                                                   April 2000                                      LIGHTSPEED(1)