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William F Pokorny <ano### [at] anonymous org> wrote:
>
> :-) 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.
But that's half the fun of deciphering it! :-D I use my "secret William P.
decoder ring" that came in a box of Cracker Jacks...
>
> 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.
Ooh, I didn't know that. I need to run (more) tests to see. I did notice an
'oddness' between 8-bits-per-channel vs 16, when running a POV-ray .png render
for HF use, but I didn't know what was causing it.
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