4 ms·
> smaller part of gamut that some industry standard colorspaces (ACES 2065-1) do with three primaries The ACES 2065-1 primaries are not realizable, they are im
by robomartin 3y ago
> smaller part of gamut that some industry standard colorspaces (ACES 2065-1) do with three primaries
The ACES 2065-1 primaries are not realizable, they are imaginary. In other words, one cannot make a display capable of displaying these primaries. They are mathematical tools enclosing the entire CIE 1931 space.
- zokier 3y agoYes, but of course it is debatable how relevant realizability is in practice; we have long history of using displays that have significantly smaller gamuts than whatever nominal colorspace being used. Was rec2020 realizable in practice when it was created? I'd bet no.
- robomartin 3y agoSorry, I think you might be mixing up a couple of ideas. In this context, not-realizable means “not real”. Rec 2020 primaries have always been realizable. ACES AP0 primaries only exist mathematically for the purpose of enclosing the entire “wedge” of visible colors.