46a32b38$1@news.povray.org...
>
> I confess I don't really understand what you are doing. Are you
> trying to simulate the freaky TGA red/green 16-bit hack? Why not
> just apply gradient y to the isosurface and output a 16-bit PNG
> using +FN16 or Bit_Per_Color = 16?
TGA red/green is actually a 24bits image, your trick couldn't work
Marc
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