Where can I get Radiance for sun4?

[Webster Dove]

I saw pictures in a recent Sun Observer that were produced with a
visualization program called Radiance that was claimed to be public
domain.  Can anyone tell me where to get a copy (for the sun4)?  Can
anyone tell me there experiences with it?

Dr. Webster Dove				Dr. Webster Dove
Experimental Computing Systems ('X')		Lockheed Sanders Inc.  
Signal Processing Center of Technology		144 Daniel Webster Hwy.
Lockheed Sanders Inc.				Merrimack, NH.  03054  

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