Happy new 2022! In my WordPress site I have several topics that I started in 2021 but I was not able to finish. I am looking forward to present them hopefully in the near future.
The new topics are not directly related to ACES, that’s why I created a new section called “Exploring HDR displays” on this WordPress site.
One article, at least a first part, I am able to present today. The blurry red star on a cyan background. Since I read the blog from Troy Sobotka I got fascinated with this image. The top image shows how it should look and the second image shows how it looks far too often when you try to recreate this image for yourself.
got a small update. With the new versions of the operation systems MacOS Monterey and iOS 15 I need to check again on which devices HDR is supported. There are some strange changes. For example I could always show my demo files on the iPhone 11 Pro. Now I got a new iPhone 13 Pro and the same page does not work anymore.
I also got the new M1 MBP with an XDR display, so I decided to update the subdomain hdr.toodee.de with some more detailed information on which device and with which browser or app this page actually works as intended.
Blender 3.0 lighting tests, converting a finished drone footage trailer from SDR to HDR in FCPX and filming with the new iPhone 13Pro in the ProRes format.
Blender 3.0 entered the beta phase, so I thought it is time to update the Blender and ACES 1.2 page. I found a Blender lighting tutorial video on YouTube from FlippedNormals.com and this animated me to follow along with the Blender 3.0beta version.
I ended up rendering some stills of the sculpture head in Blender 3.0 with ACES 1.2. As the view transform I used sRGB. The Radeon ProRender does not officially support Blender 3.0, so I used Blender 2.93.5 and Filmic to light the scenes.
The finished renders I imported into Resolve in ACES 1.3 mode and for the ODT I chose the HDR output ST-2084 1.000 (P3D65limited). My iMac does not show me a proper output on the UI viewer in Resolve, so I simply graded the stills to around 700 Nits peak brightness with the help of the scopes and checked the results on an iPadPro XDR. For the SDR version, I switched to the ACES/sRGB output and started the color corrections from scratch.
And here is another little test that I was able to for a personal project of Florian Zachau from Sehsucht that he shot on his SKYDIO 2 drone. He sent me his finished edited and graded project as a UHD ProRes file, I gave it a shot and converted it in FCPX to HDR.
The camera source files and his graded master are done in SDR, but the overall images have already such a big contrast, so it was easy to stretch the sun and lights even further out and make them brighter. I tried to hide the sun disc a little bit more and desaturated areas around the sun. A bit of grain was added and the converted ProRes file handed back to Florian.
Sure, there are compression and other artifacts from pushing the material even further, but on a mobile screen the image looks just cool! Thanks to Florian to be able to add a bit of “spice” to his cool trailer video.
For the last little project I did a walk alongside the Elbe in Hamburg and filming close to dawn on a sunny autumn day in November.
The shots were filmed just from the hand holding the phone in HD 1080p@60fps in ProRes. The 20 GB heavy clips I imported into FCPX and created a little edit in a HDR/WideGamut. The source files are shot in HLG mode, and I tried in FCPX to to a conversion to PQ, but there is not much more that I could pull out of that footage. So I uploaded the slightly graded film from a ProRes HLG master file.
At the end of my holidays I like to share a list of links of pages and articles that I read, and some videos that I watched or re-watched to learn while relaxing in the south of Spain in my favorite city of Seville. Be aware, it is getting nerdy 🙂
Blender 2.93 and ACES 1.2 – Update of the setup page
It was time to update the Blender & ACES page. The blender development is so fast and new versions are coming out more frequent now. I try to check old bugs and limitations from time to time. That’s why I rendered some images again with the new version and restructured the setup page for Blender & ACES.
Photoshop and ACES are not easy to bring together. Photoshop is a display referred tool while the ACES framework uses a scene referred approach. On many projects I am using Photoshop for retouch and cleanup work of still images while the comp is happening in ACES with Nuke or Flame.
A convenient way is to use the Photoshop Proof Setup as a view transform while retouching log encoded images.