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From: ph@miro.Berkeley.EDU (Paul Heckbert)
Newsgroups: comp.graphics
Subject: Re: Lambert's Law & the Moon
Message-ID: <9237@pasteur.Berkeley.EDU>
Date: 27 Nov 90 05:54:50 GMT
References: <27331@cs.yale.edu>
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Reply-To: ph@miro.Berkeley.EDU (Paul Heckbert)
Organization: University of California at Berkeley
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musgrave-forest@CS.YALE.EDU (F. Ken Musgrave) writes:
>  Am I correct in a vague memory I seem to have, that the (Earth's) moon is
>supposedly a near-ideal Lambertian reflector?

As others have mentioned, the moon and other dusty surfaces are not Lambertian.
Blinn, in the paper cited below, says they follow the Hapke-Irvine
illumination model more closely.

%A James F. Blinn
%T Light Reflection Functions for Simulation of Clouds and Dusty Surfaces
%J Computer Graphics
(SIGGRAPH '82 Proceedings)
%V 16
%N 3
%D July 1982
%P 21-29
%K shading
%Z Hapke-Irvine illumination model