unreal.MediaReferenceWhite

class unreal.MediaReferenceWhite

Bases: EnumBase

Reference-white standards to scale HDR media sources so diffuse white lands at UE scene-linear 1.0, and vice-versa.

C++ Source:

• Module: MediaAssets

• File: BaseMediaSourceColorSettings.h

MRW_BT1886: MediaReferenceWhite = Ellipsis

ITU-R BT.1886 SDR reference white (100 cd/m2). Scales PQ (100-nit paper white) and HLG (in-house 100-nit convention on a 1000 cd/m2 BT.2100 reference display) to scene linear white (1.0).

Type:

3

MRW_BT2408: MediaReferenceWhite = Ellipsis

ITU-R BT.2408 Reference White. 203 cd/m2 for PQ (ST2084), 75% signal for HLG scale to scene linear white (1.0).

Type:

2

MRW_DISABLE_NORMALIZATION: MediaReferenceWhite = Ellipsis

Explicitly preserve input/native scaling.

Type:

1

MRW_NONE: MediaReferenceWhite = Ellipsis

The source reference white is not overridden, defer to system/default behavior.

Type:

0