Actually, scratch that, ACES linear followed by rec709>linear in Nuke
doesn't look like anything I see in RawViewer in terms of saturation.
The gamma looks reasonable though.
Any more hints?
Cheers,
frank
On 3/4/14, 8:47 AM, Frank Rueter wrote:
>>The conversion in Sony's RAW Viewer was done using the Color set to
ACES, Viewer Settings to RRTODT_sRGB (v011 at that time), export
format set >>to OpenEXR 16bit and the Bake option set to ACES/Linear.
Nothing esoteric.
That's what I did, but when you set to ACES linear, the ODT and all
other input parameters in RawViewer are ignored (and so it should be).
>>Once you apply a Rec.709 RRT
If I convert the "ACES linear" exr using a rec709>linear ColoSpace
node, it does look closer to what we are after. But that can't
possibly mean the exrs are actually in a linear scene referred space.
Or am I completely barking up the wrong tree here and "ACES linear" in
this case does not meant scene referred but "raw", and raw + rec709
RRT (i.e. file colour space in Nuke) gives me scene referred linear?
Cheers,
frank
On 3/3/14, 8:27 PM, Diogo Girondi wrote:
Hey Frank,
We had a F65 ACES project last year and after a few tests with
Colorworks to match our pipeline (DaVinci) to theirs (Baselight), we
went with Sony's RAW Viewer for the conversion because DaVinci was
yielding a saturation shift on the reds in the conversion that didn't
happen in Baselight. After some digging we concluded that DaVinci was
using an old IDT that wasn't recommended by Sony, so we stuck with
RAW Viewer which was using the same IDT present in Baselight.
The conversion in Sony's RAW Viewer was done using the Color set to
ACES, Viewer Settings to RRTODT_sRGB (v011 at that time), export
format set to OpenEXR 16bit and the Bake option set to ACES/Linear.
Nothing esoteric.
Perhaps this low saturation you're seeing is due to the F65 gamut to
ACES gamut. Because for what I remember the converted files did look
duller than linear files with a smaller source gamut once you look at
them in their linear form.
Once you apply a Rec.709 RRT does the saturation look "normal" or
"match" the same material converted to Rec.709 in the RAW Viewer
directly?
Cheers,
Diogo
On Sun, Mar 2, 2014 at 7:26 PM, Frank Rueter <fr...@beingfrank.info
<mailto:fr...@beingfrank.info>> wrote:
Hi all,
has anybody got experience with transcoding Sony' MXF files
(coming from the F65) to proper ACES linear exrs?
When I try (using Sony's RawViewer), I get very flat colour
separation, i.e. very low saturation, which certainly does not
seem right in scene referred linear space, which I thought ACES
linear is all about.
Has anybody had similar problems (and maybe solutions)?
Cheers,
frank
_______________________________________________
Nuke-users mailing list
Nuke-users@support.thefoundry.co.uk
<mailto:Nuke-users@support.thefoundry.co.uk>,
http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
_______________________________________________
Nuke-users mailing list
Nuke-users@support.thefoundry.co.uk,http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
_______________________________________________
Nuke-users mailing list
Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
_______________________________________________
Nuke-users mailing list
Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
