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LUT - lin workflow

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Jonathan Alenskas

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LUT - lin workflow

PostTue Aug 08, 2017 3:35 pm

Hello

Just starting up in fusion9.
I have a cineon .dpx image. I used CineonLog to convert to Lin and then in my viewer used OCIOColorSpaceView to display lin to rec709.

1. why do high contrast edges look so terrible in my viewer. they are choppy and broken - look around edges of mountain. it is horrible working like this cause i keep think my edges are bad when i key or roto but in reality they are not. How do i fix this ?

2. why is there no pop up LUT option to view sRGB or rec709 - i believe there should be. Why must i use OCIO ?


please help, thanks :)

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Jonathan Alenskas

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KonradWelz

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Re: LUT - lin workflow

PostWed Aug 09, 2017 9:22 pm

For a proper Linear workflow in Fusion I can really recommend these two articles on setting up Fusion properly for Linear and setting up your footage. The site includes a sRGB and REC709 LUT which you can install for your viewer.

http://www.comp-fu.com/2012/02/linear-g ... in-fusion/

http://www.comp-fu.com/2012/03/linear-g ... on-part-2/

It's also important to be sure that Fusion interprets your footage correctly - especially if they're cineon or some Log format. Fusion assumes that DPX files are cineon log - even if they're not. You can easily change this in the actual Loader Node in the Format tab.

Generally if an image looks blown out or too dark or just plain weird in Fusion, you've got the wrong colourspace or gamma or log settings. They can either be corrected in the Loader Node of the footage under the Import or Format tabs or using the Gamut or ColorSpace tools.
Of course, once you're working in Linear, you need to have a proper LUT switched on in the Viewer.
Maybe some of this helps.

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