Public Member Functions
Functions
bool	GetApplyPhysicalCameraExposure () const
	Enables physical camera exposure using ShutterSpeed/ISO/Aperture.
void	SetApplyPhysicalCameraExposure (bool Value)
	Enables physical camera exposure using ShutterSpeed/ISO/Aperture.
FCameraExposureSettings &	opAssign (FCameraExposureSettings Other)

Public Attributes
Exposure
float32	Bias
	Logarithmic adjustment for the exposure. Only used if a tonemapper is specified. 0: no adjustment, -1:2x darker, -2:4x darker, 1:2x brighter, 2:4x brighter, ...
float32	LowPercent
	The eye adaptation will adapt to a value extracted from the luminance histogram of the scene color. The value is defined as having x percent below this brightness. Higher values give bright spots on the screen more priority but can lead to less stable results. Lower values give the medium and darker values more priority but might cause burn out of bright spots. >0, <100, good values are in the range 70 .. 80.
float32	HighPercent
	The eye adaptation will adapt to a value extracted from the luminance histogram of the scene color. The value is defined as having x percent below this brightness. Higher values give bright spots on the screen more priority but can lead to less stable results. Lower values give the medium and darker values more priority but might cause burn out of bright spots. >0, <100, good values are in the range 80 .. 95.
float32	MinBrightness
	A good value should be positive near 0. This is the minimum brightness the auto exposure can adapt to. It should be tweaked in a dark lighting situation (too small: image appears too bright, too large: image appears too dark). Note: Tweaking emissive materials and lights or tweaking auto exposure can look the same. Tweaking auto exposure has global effect and defined the HDR range - you don't want to change that late in the project development. Eye Adaptation is disabled if MinBrightness = MaxBrightness.
float32	MaxBrightness
	A good value should be positive (2 is a good value). This is the maximum brightness the auto exposure can adapt to. It should be tweaked in a bright lighting situation (too small: image appears too bright, too large: image appears too dark). Note: Tweaking emissive materials and lights or tweaking auto exposure can look the same. Tweaking auto exposure has global effect and defined the HDR range - you don't want to change that late in the project development. Eye Adaptation is disabled if MinBrightness = MaxBrightness.
float32	SpeedUp
	In F-stops per second, should be >0.
float32	SpeedDown
	In F-stops per second, should be >0.
EAutoExposureMethod	Method
	Luminance computation method.
UCurveFloat	BiasCurve
	Exposure compensation based on the scene EV100. Used to calibrate the final exposure differently depending on the average scene luminance. 0: no adjustment, -1:2x darker, -2:4x darker, 1:2x brighter, 2:4x brighter, ...
UTexture	MeterMask
	Exposure metering mask. Bright spots on the mask will have high influence on auto-exposure metering and dark spots will have low influence.
float32	HistogramLogMin
	temporary exposed until we found good values, -8: 1/256, -10: 1/1024
float32	HistogramLogMax
	temporary exposed until we found good values 4: 16, 8: 256
float32	CalibrationConstant
	Calibration constant for 18% albedo.
Variables
bool	ApplyPhysicalCameraExposure

Member Function Documentation

◆ GetApplyPhysicalCameraExposure()

bool GetApplyPhysicalCameraExposure ( ) const

Enables physical camera exposure using ShutterSpeed/ISO/Aperture.

◆ opAssign()

FCameraExposureSettings & opAssign ( FCameraExposureSettings Other )

◆ SetApplyPhysicalCameraExposure()

void SetApplyPhysicalCameraExposure ( bool Value )

Enables physical camera exposure using ShutterSpeed/ISO/Aperture.

Member Data Documentation

◆ ApplyPhysicalCameraExposure

bool ApplyPhysicalCameraExposure

◆ Bias

float32 Bias

Logarithmic adjustment for the exposure. Only used if a tonemapper is specified. 0: no adjustment, -1:2x darker, -2:4x darker, 1:2x brighter, 2:4x brighter, ...

◆ BiasCurve

UCurveFloat BiasCurve

Exposure compensation based on the scene EV100. Used to calibrate the final exposure differently depending on the average scene luminance. 0: no adjustment, -1:2x darker, -2:4x darker, 1:2x brighter, 2:4x brighter, ...

◆ CalibrationConstant

float32 CalibrationConstant

Calibration constant for 18% albedo.

◆ HighPercent

float32 HighPercent

The eye adaptation will adapt to a value extracted from the luminance histogram of the scene color. The value is defined as having x percent below this brightness. Higher values give bright spots on the screen more priority but can lead to less stable results. Lower values give the medium and darker values more priority but might cause burn out of bright spots. >0, <100, good values are in the range 80 .. 95.

◆ HistogramLogMax

float32 HistogramLogMax

temporary exposed until we found good values 4: 16, 8: 256

◆ HistogramLogMin

float32 HistogramLogMin

temporary exposed until we found good values, -8: 1/256, -10: 1/1024

◆ LowPercent

float32 LowPercent

The eye adaptation will adapt to a value extracted from the luminance histogram of the scene color. The value is defined as having x percent below this brightness. Higher values give bright spots on the screen more priority but can lead to less stable results. Lower values give the medium and darker values more priority but might cause burn out of bright spots. >0, <100, good values are in the range 70 .. 80.

◆ MaxBrightness

float32 MaxBrightness

A good value should be positive (2 is a good value). This is the maximum brightness the auto exposure can adapt to. It should be tweaked in a bright lighting situation (too small: image appears too bright, too large: image appears too dark). Note: Tweaking emissive materials and lights or tweaking auto exposure can look the same. Tweaking auto exposure has global effect and defined the HDR range - you don't want to change that late in the project development. Eye Adaptation is disabled if MinBrightness = MaxBrightness.

◆ MeterMask

UTexture MeterMask

Exposure metering mask. Bright spots on the mask will have high influence on auto-exposure metering and dark spots will have low influence.

◆ Method

EAutoExposureMethod Method

Luminance computation method.

◆ MinBrightness

float32 MinBrightness

A good value should be positive near 0. This is the minimum brightness the auto exposure can adapt to. It should be tweaked in a dark lighting situation (too small: image appears too bright, too large: image appears too dark). Note: Tweaking emissive materials and lights or tweaking auto exposure can look the same. Tweaking auto exposure has global effect and defined the HDR range - you don't want to change that late in the project development. Eye Adaptation is disabled if MinBrightness = MaxBrightness.

◆ SpeedDown

float32 SpeedDown

In F-stops per second, should be >0.

◆ SpeedUp

float32 SpeedUp