Display Settings Help

This control panel is still unfinished, and subject to change.

Two sliders control the camera settings:

   FOV --- field of view (in degrees)

   Distance --- distance (in KnotPlot units) from the camera to the origin

Use `enable anaglyph stereo' to put KnotPlot into that display mode.  You'll
need red/green or red/blue glasses to view things properly.  Most of KnotPlot's
operations can be done in anaglyph stereo mode, but everything doesn't always
display properly.  Because of this, some of the demos will not be interesting
in anaglyph stereo. 

The next set of sliders are for those rare displays that don't have square
pixels.  You can use the sliders to set either the pixel aspect ratio in the
x or y directions.  The actual pixel aspect ratio used is 

             (pix asp y) / (pix asp x)


Utility sphere

Turn it on or off, change its radius, or how it is display, default is `cheapo'

