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On 2/25/23 09:59, jr wrote:
> hi,
>
> "Bald Eagle" <cre### [at] netscape net> wrote:
>> ...
>> There was a Loooooooooooooooooooooong discussion of this over here:
>
> :-) interesting thread. thanks.
>
Ah, I remember that thread. Also that I gave up on a documentation issue
therein that was well past any return on investment. :-)
>
> @WFP
>
> thanks for clarification + input(s); re the red-green thing, confused by "height
> field color images", thought they were always just grayscale.
>
:-) My head is always a buzzing mess. Anyone else noticed I'm of late
often typing 'is' for most any two character word with a leading 'i'.
:-( A small miracle anyone can make anything of what I write.
---
Anyhow. Color images work as HF input. However, in newer versions of
POV-Ray I'd recommend never using color inputs directly in a grey scale
application. Too many ways for it to go astray of intent.
For example, a color image with strong red, green or blue regions will
create substantially different HFs when encoded as a 16 bit color png vs
an 8 bit one.
Bill P.
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