Alain wrote:
>
> A bad solution, as it preclude the use of high ambient object to 
> illuminate your scene.
> 

In that case, set ambient_light to a tiny value, effectively killing the 
ambient value in ordinary finishes, and set the ambient value of the 
high-ambient object high enough to offset it.  (For example, 
ambient_light 0.001 * ambient 10000 = 10)

--Sherry Shaw


-- 
#macro T(E,N)sphere{x,.4rotate z*E*60translate y*N pigment{wrinkles scale
.3}finish{ambient 1}}#end#local I=0;#while(I<5)T(I,1)T(1-I,-1)#local I=I+
1;#end camera{location-5*z}plane{z,37 pigment{granite color_map{[.7rgb 0]
[1rgb 1]}}finish{ambient 2}}//                                   TenMoons

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