Hey there,

so after getting all the Alexa LogC Issues out of the way i am facing the next. 
I am trying to Match a Qt as it looks when imported in AE
in Nuke. Here's What I am doing to compare:


-          Load the Qt in AE. Color Management is off (Project set to 32bpc, no 
working profile)

-          Render out a 16bit png and making a screenshot

-          Load the same Qt in Nuke and try to get these three to line up

The Screenshot and the rendered PNG out of AE match. So there does not seem to 
happen any "export color space conversion"

Setting the input colorspace of the Qt in Nuke to  sRGB (which I assumed AE 
would be doing without any other interpretion information and colormanagment)
Is getting VERY close. The colors are slightly off tho (mainly greens, reds). 
Here's a difference of the two. Note that this is blown up quite a bit to make 
the
Difference more visible. It is quite subtle, but it yields pretty different 
results if actual corrections are applied via LUTs.

http://minus.com/mzyUlOo8C/

Any idea what might help? I tried adding a colorspace node without converting 
at all (setting both in and out to sRGB) and only changing primary_in and _out.
This does actually yield changes to the said areas, but I can't get any to 
match.

Anyone knows what AE might be doing?

Thanks in advance,
Thorsten


Thorsten Kaufmann
Head of Production
________________________________

Mackevision Medien Design GmbH
Forststra?e 7
D-70174 Stuttgart

T  +49 711 93 30 48 31
F  +49 711 93 30 48 90
M +49 151 19 55 55 02

[email protected]
http://www.mackevision.de

Gesch?ftsf?hrer: Armin Pohl, Joachim Lincke, Karin Suttheimer
HRB 243735 Amtsgericht Stuttgart



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