I follow the rule of finish{ambient 0} and it looks very dark to dull.
To make it look halfway like the original image I have to go the
light_source as  rgb<1,1,1>*3 and *5 isn't that bad. 

	OK, I am still missing something as that should not be necessary,
right? 

	And if it is necessary, what am I missing regarding the consistant
nature of the scene language? Was ambient originally a hack? 

	Attachment indented for the purist at heart. This is a side view that
will give essentially the effect I desire. 

	BTW: congrats, I guess, to the developer of the type 1 mapping for
first converting the image to a square or whatever the trick was to
avoid the need for scaling a rectangular image to a sphere. 

	And if you do not have a picture of the earth around to see the effect
it is simply the earth with a light and dark side and the shaded
transition from light to dark. Just stick in any image and look at the
lit hemisphere with *3 compared to *5 and see it is clearly less of half
than it should be. 

-- 
If there is anything that makes life complicated it is
trying to find decisions other than pragmatic. We appeal
to gods to make life hard. 
	-- The Iron Webmaster, 222

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