Quick PSA: Because this seems to come up all the time, just want to write down the reason why you should not put log encoded images into a floating point codec like openEXR . The difference between floating point and integer based codecs is basically: Integer saves data as “full values”, for 10bi…

[image] finnjaeger: Convert it to linear and then back on import Or use old-school .dpx instead. The grass was greener those days

[image] finnjaeger: frame based format that offers losless compression? RIP DPX-C I would love for EXR to offer a 12bit integer option at some point, piz, dwaa e.t.c is all genius i would just love to have it without the float. DPX is not really that viable anymore at 5K and higher, the siz…

Word. I resist the urge daily to stuff graded rec709 into those things. But it’s getting harder and harder to resist when you see the size of the equivalent dpx… It’s heresy, but I’ve got my finger in the button. Now if there were container format based publishing…

Thank you for the explanation and examples Finn. I love a good gradient demo. :slight_smile:

[image] finnjaeger: …ever, espeically for a 10bit or even 8bit delivery, Personally id still linearlize the rec709 but thats just me and my opinion that for interoperability putting anything other than linear data into a EXR is bad practice.32bit floatQ: Ok cool, but whats the fix, if we want t…

Thanks Finn, A timely discussion for me, as i’m waiting on delivery of a new internal ssd raid to use as a framestore on my mac. I was under the impression that i would be better off transcoding 5k Red video files into EXRs on the framestore, working on those in my Aces project, then exporting tho…

no thats totally fine, I would just make sure to convert the red stuff to aces before you write exrs, so that the exrs are all in a common colorspace with a linear “gamma”. Just dont write log exrs and you are golden. I am personally a huge fan of dwaa/dwab its like prores but for exrs, very small,…

would you do the “convert red to aces, then transcode to exr” in Flame or Resolve?

totally depends on your whole workflow and wether you need metadata etc. Here is how I would do that kind of stuff; Cant 100% remeber with r3d but i believe you can pick linear/acesCG or aces-2065-1 in the raw settings during the initial conform. Either that or leave it on ipp2/redwidegamut/redlog…

[image] finnjaeger: dwaa for nuke dwab for flame Mind explaining please?

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val August 9, 2023, 1:22pm 2

Or use old-school .dpx instead. The grass was greener those days

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