Re: Help with HLG profile

Worth noting is that some facilities do not use the RRT.
They include a (look?) transform that inverts RRT, cancelling it out, and
applies their desired RT.

Thanks,
Lars Borg  |  Principal Scientist  |  Adobe  |  p. 408.536.2723  |  c.
408.391.9479  |  borg@adobe.com


On 6/20/18, 6:00 AM, "Kevin Wheatley" <kevin.wheatley@framestore.com>
wrote:

>The current ACES RRT renders into a virtual display HDR wide colour
>gamut space (extremely similar to  a 10000Cd/m^2, Rec 2020 display).
>The ODT targets this intermediate data into a specific real display,
>say P3, Rec709/1886 etc. The general assumption is that it targets a
>dark viewing environment, and that adaptations are currently placed
>into the ODTs to deal with some of the image rendering adjustments
>needed to compensate for dim viewing etc.
>
>The work going on to revisit the RRT/ODT is trying to resolve some of
>the issues that arise out of this particular split of
>responsibilities, as well as trying to widen the applicability to
>other viewing situations (personally I'd like to remove some of the
>colour adjustments as they limit the available colour range and looks
>that you can create).
>
>ACES is definitely not limited to cinema viewing, Framestore use it
>across almost all of our different delivery mediums, and yes we have
>hit some of its limits so I'm not a total fanboy - but have provided
>constructive feedback!
>
>Kevin

Received on Wednesday, 20 June 2018 11:44:13 UTC