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> Thomas de Groot <tho### [at] degroot org> wrote:
>> Op 09/09/2021 om 03:24 schreef Samuel B.:
>>> Just testing out some moon maps. (...)
>>>
>> Those maps are getting better over the years... as also the use of them.
>> Very nice that little touch of Earth glow in the shadows!
>
> Thank you Thomas. It actually renders very quickly, sans bloom.
>
> Unfortunately, the bump maps appear to be 8-bit grayscale, not 16-bit. Even
> though IrfanView reports a 16-bit format, my tests in POV-Ray showed major
> terracing artifacts like you would expect from a lower bit depth. (Not seen here
> because I kept the resolution below a certain size). I should probably try the
> maps them out in other programs to see if POV is at fault, although I doubt it
> is...
>
> Sam
>
>
It could be in 16 bits format, but with the lower byte zeroed.
zeroed lower byte, then, you'll see sharp spikes instead of a curve.
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