HLG Footage when dynamic linking to After Effects

Report · Sep 20, 2023

I see this issue being mentioned in a few other threads, but they are 1) marked as "solved" and 2) dated, so I'm asking again to try to bring in some more current information.

I have some HLG footage I shot on an iPhone 13 that I am editing in Premiere. Some of this footage is round-tripping from After Effects. I would like to work end-to-end in Rec2100HLG, outputting footage of the same quality and dynamic range that I started with.

I'm aware that:

my Sequence settings in Premiere need to be configured to use rec2100HLG
My White Point in my Project Settings in Premiere needs to be set to 203
My Project Settings in After Effects need to be configured to have a working space of rec2100HLG - W203
- (what should the bit depth of this be? Presumably more than 8bits)
For each imported clip in AE, I need to ALSO set the Override Media Colorspace to rec2100HLG - W203

When I do all of the above, I can clearly see that the dynamically-linked AE compositions in Premiere still seem to be interpreted as Rec709. How does this get set, and how can I adjust it to be Rec2100HLG?

I'm further aware that I need to choose a preset when exporting my project from Premiere that allows for Rec2100, but it appears to me that there is a potential bug (or, at least, a very unclear workflow) that is causing the compositions from AE to be linked as Rec709.

I'm currently doing this editing on an M1 Max macbook, using Premiere/AE 2023.

Report · Sep 20, 2023

As you're on a Mac, do you have both the Display Color Management and Extended Dynamic Range when available checked in the Preferences? The EDR option isn't to my knowledge needed on a PC.

Report · Sep 20, 2023

Indeed I do, yes.

One thing I notice when inspecting my footage in Aftereffects: it lists the media clips as having no color space (I would have expected AE could 'see' that it's rec2100hlg)

Report · Sep 20, 2023

I'm wondering if the Ae forum might be a good place to ask this ...