Op 11/09/2021 om 22:47 schreef Samuel B.:
> Thomas de Groot <tho### [at] degrootorg> wrote:
>> Op 11/09/2021 om 02:36 schreef Samuel B.:
>>> "Samuel B." <stb### [at] hotmailcom> wrote:
>>> (...) Maybe POV-Ray is mishandling the tiff file?
>>>
>> And if you save the tiff as tga or png (using IC which I prefer), what
>> happens?
> 
> Well, if I save it as a png file it gets /fixed/, that's what happens! Thanks
> Thomas :D
> 
Wow... It was just a thought. I had the dim memory that tiff might be 
problematic...

> The attached is what the POV-Ray render looks like now.
> 
Yes! That is much better indeed.

> What's IC, btw? Did you mean IV aka IrfanView? I use that for many things, but
> in this case it didn't help the situation whatsoever. Maybe I'm using it wrong.
> Instead I used GIMP and exported the image to a png file with some options
> enabled.
> 
That is Ive's small (but not little) application: 
https://www.lilysoft.org/IC/ic_index.htm

> TL;DR: use GIMP to convert NASA's tiff files to a 16-bit png file using the
> 16bpc GRAY pixel format :)
> 
> Sam
> 
> P.S. I still wonder if POV-Ray is mishandling 16-bit grayscale tiff files...
> 


-- 
Thomas

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