Hello,
I can not understand (nor find any info), what colorspace Keyshot does use to save ACES EXRs.
How can I transform them to sRGB in post?
I’ve tried every possible input color space (I use After Effects), but can not get the result as I see it in Keyshot virewport.
This is what I see in Keyshot (without tonemapping)
And this is what I see in AE, if I convert from ACEScg to sRGB
What am I missing? Thanks
I’m not sure what you’re missing but day before yesterday I came across this post since I was looking into some 16-bit/32-bit info.
If you scroll a bit down you see a reply from James Ritson. While it doesn’t have to do with KS at all he explains there are are structural differences in 16-bit compared to 32-bit. And 32-bit images need to get some defined boundaries first before you can use them in your normal flow.
I’m really not sure if it’s of any use for you but it seems you do miss some gamma correction. I think you know more about the subject than me but maybe it gives you a hint of your issue since he explains some common made mistakes.
KeyShot’s EXRs are saved to the sRGB colorspace. So, you don’t have to do any conversion there.
As Oscar hinted at, it’s the Gamma piece you’re missing I believe. So, you need to adjust the gamma from being linear to sRGB or rec709 in AE to get what you’re seeing in KeyShot.
Let me know if that doesn’t work for you.
Hello, Oscar, hello Will,
thank yor both for your input and sorry for very delayed answer. After all afforts I coud not get the exact look in AE, as I had in KS. I had a lot of projects to render in KS, and had not any more time to experiment, so I’ve desided to tonemap in KS, and it worked pretty well at the end. In any case I will try to get it work in AE again in the future, and will consider your advices - so thank you again.
Shoot. I was hoping this would have more current discussion. What I’m seeing people miss here is that the Aces workflow is meant to convert all of your footage to the same wide-gamut colorspace, do your edits while still staying wide-gamut, then do a final conversion at the end.
In AE, you can use a “view workspace” which would likely be sRGB or Rec.709.
I’m hoping to hear from Luxion to understand how they implemented it. It feels a bit like using Log footage from an unknown camera right now. It’s fine that they save it to an sRGB profile, but can we get a LUT or something to bring it back? I’m absolutely sure I’m missing something, but from my understanding, the ACES workflow should give you a color profile that you can use to translate the file. Pretty standard is the ACEScg colorspace, or programs like Blender use ACESagx now they they are using agx rather than filmic.
Is there an ACES view transform somewhere, or a LUT that changes it from the linear space to the view gamma we are familiar with so we can keep the edits below the final transform in the stack? Photoshop IS destructive in layer adjustments unless you’re in 32bit mode.
