Using 10bits cineon in after effect

[jayfxjay]

Hi I’m used to work on Flint
But i got to work on after effect with 2048×1556 cineon 10bpc files.
Like Flint After will convert it in 8 bpc. I know there’s a way to display it with a LUT in flint (display not convert), Is it possible in after FX.
Does he recreates 10bpc files when output?

[Anonymous]

i don’t know any way to display LUT in after effects. But he will recreate yours 10bit cineon files (in order you should force the 16 bit processing in project preference…)

[Anonymous]

ohhh, you’re french…

je disais donc je ne sais pas si c’est possible dans after d’afficher tes images via un LUT. Mais bon, quand tu le regle en 16bit, il fait sa tembouille interne pour t’afficher plus ou moins correctement tes images. Par contre, il te sortira tes images en 10 bit comme il le faut ( je le fais souvent) mais biensur il faut mettre le projet en 16 bit, sinon ca ne servira pas a grand chose…

[jayfxjay]

Hi French guy, i assume we have to speak english here.

“Tembouille” not really a broadcast term.
if i want to import 8bpc files (artbeat for example) and i want to composit it with cineon 10bpc files how do i convert my 8bpc files?

Thanks

[Anonymous]

you have not to convert any images… after is resolution and bit detph independant. if u put a 8bit image over a 10bit cineon file and you work in a 16 bit project, after will convert all image in 16 bit before working, but you won’t have a better quality than a 8 bit image over a 10bit image at the end…

[jayfxjay]

yes I know that but how about the lut. A cineon file does not display the same as a 8 biit file, If you want to have a video look, you specifie it in preference footage for cineon to look like video then he convert it when render. but does it do the same for eight bit file?

[Shervin Shoghian]

Well After Effects nativily works in 2 bit depths 16-bits and 8-bit.
Cineon files although encoded in 10-bits get pushed up to 16-bits and work just great. Any other video footage being 8-bits can also be pushed up to 16-bits in after effects with no problems.
The problem then lies with applying proper Luts or creating a linear type image to work with so that you can comp already linear 8-bit video footage.

more of that kinda nerdy goodness is explained here

http://prolost.blogspot.com/2005_05_01_prolost_archive.html

lastly you can grab this handy peice of software which also address your cineon and video lookup table problem and also solves another problem about floating-point in After Effects, which as you know at the moment doesn’t support float natively at this moment.

http://www.redgiantsoftware.com/elin1.html#free

cheers

Swerve

[Anonymous]

Hi,
You can work with 10-bit Cineons in AE without actually changing them and seeing its in non-“washed” colors. To do it you must import DPX/CIN 10-bit LOG sequence into the 16-bit AE project and leave interpretation as “Full range”.
Putting this sequence into the new composition you add Adjustment Layer on top of it. After that you must apply Cineon converter filter to this AdjLayer. Switching AdjLayer OFF you can see original look of LOG files. Switching AdjLayer ON you can see video representation of your sequence. And rendering this composition with any changes as 10-bit Cineon LIN (!) you’ll receive new 10-bit LOG sequence (don’t forget to OFF AdjLayer !).
To apply some LUTs you need to use any LUT-loader filter for AdjLayer. This is the hint. We use our custom inhouse plugin which load monitor LUT and our ARRILaser LUT. You can use any solution you like.

[Author]

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