Resolve Studio HDR tests

Why can’t I see a proper HDR preview on an iMac2020/MBP2018 UI screen? In FCPX this is possible.

For some time now I am testing with HDR content in FCPX and Resolve Studio. FCPX works best for me with Alexa LogC material in HDR/WideGamut projects. In Resolve I set the project to ACES 1.1 and use the ST-2084 (1.000Nits P3D65limited) ODT for the tests.

Seeing HDR content in FCPX and review the exported ProRes444 files works the same convenient as with SDR footage. What you see inside FCPX is the same as in the Quicktime player.

In Resolve Studio (both V16&V17beta) this is a different story. I can also get a HDR preview in the Resolve UI, but it is vastly to bright. I can’ judge anything here. The exported result as a ProRes 444 however looks very similar to the FCPX output. I am aware that I am comparing two different color management systems and different HDR tone mapping curves.

The following screenshots don’t help much, as they can’t show the HDR values, but the most noticeable difference can be spotted on the grey background of the CG car render, and the overall overblown car paint appearance.

FCPX HDR/WideGamut project: A Rec.2020 working colorspace and a Dolby PQ view transform with a HDR tone mapping to 1.000 nits maximum.
Resolve Studio ACES 1.1 project: A ACEScct working colorspace and a ST-2084 (1.000 Nits P3D65limited) ODT.

I posted in the Blackmagicdesign forum with no success. I am not sure if this is a bug or I am just missing a button somewhere. I would expect the HDR preview to work very similar in FCPX & Resolve.