Thanks for the feedback! I was also surprised at how much detail you were able to retain with just the butterfly wings flapping, there were some test runs for The Hobbit (specifically the barrel sequence) were that look didn’t fully come together on my end, so very well done! I do want to clarify some of my statements based off your response.

Then you can skip depth maps, etc. Sure, the extrapolate side will have lower quality, but when viewed in 3D the difference should smooth out.

I did test this out (with Gemini Man) and unfortunately, the result is a depth mess. Since the frame rates aren’t fully synced, there are constant moments where frames don’t line up. The process for using a depth map would cause less headaches for preservation purposes and there won’t be any sync issues. Not to mention that with a few tweeks in davinci resolve’s node tree, you can get a depth map applied seamlessly to the original source. Sure, it’s not the native image they used, but the process is used in every other Hollywood 3D conversion, it would be barely noticed. The only issue is finding a way to get a depth map from the original 3D bluray.

I always figured a HFR 2D release could be created (if you had a HFR source) by doing a double telecine to 60 fps and then decombing it. I suppose the same idea might hold for a 3D version.

That probably would work, however I am not familiar with the process of decombing, how would that look?

I’m assuming you’ll keep the frame rate at the 59.94 that the UHD BD uses so you don’t have to re-encode the audio.

Initially for the Ang Lee HFR films, that is the plan. But I do want to motion interpolate later in the process to bring the image back to 120fps. He made a big stink about that format, so I want to try to give peeps the opportunity to experience it, regardless if it seems unnecessary.