Among other things, Tom York saw fit to write:

> To me, the specular map looks like it doesn't contain any particularly
> dark
> areas,  so not all of the range of specular you've set will be used - the
> edges of the boards will still be quite bright in specular.

I agree. You should probably make the edges particularly dark in the
specular map, and maybe even a specific entry in the texture map for them.

-- 
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby

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