[Bf-compositor] Question regarding changes to blending modes

[Troy Sobotka]

On Jun 7, 2014 3:20 AM, "Bartek Skorupa (priv)" <
bartekskorupa at bartekskorupa.com> wrote:
>
> The way I see it:
> Math is the same, but color spaces are different, so we come up with
different results.

The math is frequently different.

Screen for example in scene referred models is typically:
A or B <= 1.0 A+B-AB ? max(A,B)

max() is often used in place of display referred 1.0 contexts. IIRC, there
are a few HDR tools that use whatever the chosen white point value in scene
referred is.

There is a good amount of forum chatter on this subject at some of the Nuke
and other such forums.

With respect,
TJS
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