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Hi, i'm with PovRay 3.62., with a 8 bit sRGB.icc profil.
Well, the objectif is to print 16bit file PovRay rendering, and i want to know
how a profil is possible to "adjust" picture for a pro-printing, very so far
away from me (not on my PC printing).
That what I know:
Povray rendering 16bit file, and it's OK!
After rendering 16bit file, open it with an image software who have one of this
.....icc profil.
Somebody told me about ProPhoto.icc and Romm RGB.icc to install on my OS
printing.
So.... for 8 to 16bit printing, is there a mistake ?
Any explanation about this can help me.
Thanks
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>
> Hi, i'm with PovRay 3.62., with a 8 bit sRGB.icc profil.
>
> Well, the objectif is to print 16bit file PovRay rendering, and i want to know
> how a profil is possible to "adjust" picture for a pro-printing, very so far
> away from me (not on my PC printing).
>
> That what I know:
> Povray rendering 16bit file, and it's OK!
> After rendering 16bit file, open it with an image software who have one of this
> .....icc profil.
> Somebody told me about ProPhoto.icc and Romm RGB.icc to install on my OS
> printing.
>
> So.... for 8 to 16bit printing, is there a mistake ?
> Any explanation about this can help me.
>
> Thanks
>
>
>
>
>
You should realy switch to version 3.7.
As for your question:
Add assumed_gamma 1 in your global_settings section to use linear colour
space.
Add the following to the command line or in an INI file:
+fn16
This will cause the image to be rendered and saved as a 16 bits per
channel PNG file.
The PNG format can have gamma information integrated in it's header. It
can be sRGB or some gamma value.
Now, the file contain the informations needed to allow the printing
programm to apply the desired colour profile as it perform the printing.
No need to edit the image itself.
As I don't work in the printing world, I can't help about the specifics
of the printing programm you want to use and it's interaction with the
printer to be used.
Finaly, I find it absurd to print a poster sized image at more than 100
PPI. After all, you very rarely look at a poster from less than about a
meter away. At that distance, 100 PPI may be sub-retina for many peoples...
Alain
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