Thanks @nick — I disabled the inverse OOTF in the DaVinci Resolve CST.
Any thoughts about what’s happening in this new demo in DaVinci Resolve?
2100_HLG_source_scopes
DaVinci_709_scopes
JP_2499_709_scopes
ACES2_rev060_709_scopes
Note:
HLG isn’t measured in nits like PQ. HLG is relative from 0-100%, just like Rec.709.
What are the principal differences between PQ and HLG?
HLG is a relative, scene-referred, signal. It is an evolutionary approach to HDR. Relative scene-referred signals are also used, for example, in Recommendations ITU-R BT.601 [4], ITU-R BT.709
[5] and ITU-R BT.2020 [6], and by Sony in S-Log, ARRI in Log C, and Panavision in Panalog.
PQ is an absolute, display-referred, signal. It is a new approach to video.
PQ and HLG are fundamentally different systems.