Re: nuke-default's sRGB and ACES 1.1 sRGB


Eberhard Hasche
 

Hi Gonzalo,
maybe you should consider that something in your pipeline is broken.

I tried your file out and all worked fine. Attached are two Nuke files (one ACES 1.1, the other
Nuke default) with all necessary color conversion nodes.
I rendered out two 1/8th resolution jpg images set to Rec709. The only difference in the color pipeline is that with the nuke-default image,
the picture-rendering part is missing, so it is clamped at 1.o whereas the
aces image is a bit brighter because parts of the luminance above 1.o has been rolled in.


cheers

Eberhard

----- Ursprüngliche Mail -----
Von: "Gonzalo Garramuño" <ggarra13@gmail.com>
An: "ocio-dev" <ocio-dev@lists.aswf.io>
Gesendet: Freitag, 6. Dezember 2019 11:22:37
Betreff: Re: [ocio-dev] nuke-default's sRGB and ACES 1.1 sRGB

On 6/12/19 03:16, Eberhard Hasche wrote:
Hi Gonzalo,

strange!

It is interesting. Maybe there is a look buried in the MetaData i. e. a tinting
or some white point problem.
May you give me the link to the RED-file?

Cheers

Eberhard
It happens with any RED file, but if you want one to try, try the first
clip (the one with the guy in the motorcycle) from the sample 3d files:

http://downloads.red.com.s3.amazonaws.com/sample-r3d-files/w8kvv-sth-48fps-10to1redcode_FF.RDC.zip

When I decompress it as HalfFloat and try the Log* WideGamutRGB, I get a
posterized look.  When I decompress it as 16bit short, I get a better
but too dark image.

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