NOTE: After publishing this post at least for me I need to “hit play” on the “still” frame video to see the image in HLG on an iPad Pro.
I “donated” a bunch of HDR stills as EXR files to the ACES 2.0 VWG some years ago.
These images feature a lot of bright LED head- and tail lights of my Prius4 that I photographed from dawn till night time.
Now I thought it was time to do a rework. I re-processed all the 7-bracket Canon .CR2 files to ACEScg EXR files again.
These files I loaded into Resolve 20 (set to ACES 2.0 without RGC and REC.2100 PQ) and started a simple little “grading” session on my MBP in HDR without an external display.
This was the main idea behind this “exercise”, try ACES 2.0 for myself with images that I saw many times over the years. Up to now, I was only able to try out ACES 2.0 with Blender.
Once I was happy with the result that I checked on an iPad Pro, I thought…how will it look now with ACS 1.3? Then I wanted to try out OpenDRT via DCTL. And three is one output too little for a 2x2 contact sheet so I found another DRT via DCTL that I never tried out for myself. At the end next to the ACES 2.0 output I created three more timelines:
- ACES 1.3 (RGC enabled)
- DaVinci YRGB with OpenDRT (DCTL)
- DaVinci YRGB with JP_2499 (DCTL)
without any additional trim pass.
Thanks to @jedsmith and @jpzambrano9 for figuring out some hiccups in my pre- and post-group node trees. I hope that all the Resolve node trees are without any major errors now.
The result is a UHD-HDR 2x2 contact sheet with all four ODTs; DRT; picture rendering; image formations a edited clips that I uploaded to YouTube from a ProRes 442HQ master export.
Furthermore, I used FCPX to create a social media playout for Instagram and TikTik with a conversion from PQ to HLG that FCPX is offering as an automated process.
The links can be found here:
On this page, I also successfully posted my first HDR (still-image video file) that works at least for me on the iPhone Pro / iPadPro in Safari and the MBP in Safari and Google Chrome. I also posted the same image at the beginning of this post and am curious how it will be displayed here in the forum.
I find it interesting to look for the differences and common ways how the images end up on the display.
ACES 1.3 with the RGC has still some purple fringes here and there around the headlights and these are also not completely gone with ACES 2.0. The tail lights range from red to yellow or red to white to various degrees.