Abe wrote:
> 
> [...]
> 
> I busted my head over this one too for a while. I ended up using TGA's of
> the 16-bit-for-height_field flavor and extracting the MSB and LSB by
> 
> function{pigment_foo(x,y,z).red+pigment_foo(x,y,z).green/256}
> 
> which is probably where you are almost at anyway.

Note this is probably an extremely bad idea since it does not work with
interpolation and using not interpolated image maps will result in
infinite gradients in the function.

Christoph

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