preview : Radiance Previewer on X11 Terminal
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Creates line drawing display of surfaces described in 
Radiance input file format. Supports all of the geometric
primitives. However, does not understand a few of the material
properties and all texture, pattern and mixture information. 
In a color display, the color of the surfaces are chosen to approximate
their material specification in the input file.
In the absence of a color display the objects are drawn in white.

Additional Feature: 
	A small command line interface also has been added to help
	interactively create a scene.

radfilter : An Input Data Filter
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Converts radiance input file format to the format understood
by "rad".
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Suggestions, improvements and bugs may be send to the following address.
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sumant@shakti.ernet.in
