CameraModelUtil Namespace Reference

Namespaces
namespace	BrownConrady
namespace	FTheta
namespace	KannalaBrandt
namespace	LUT1D

Classes
struct	FDistortCubemapToImageOptions

Enumerations
enum class	ELensColorChannel : uint8 { Green , Red , Blue }

Functions
float	ComputeAngle (ECameraModel CameraModel, float Distance, TArrayView< const float > Coefficients)
float	ComputeDistance (ECameraModel CameraModel, float Angle, int32 ImageHeight, TArrayView< const float > Coefficients)
FVector2f	ComputeLensImagePoint (const FLensModelDescriptor &Descriptor, FVector Direction, ELensColorChannel Channel)
FVector	ComputeLensRayDirection (const FLensModelDescriptor &Descriptor, FVector2f ImagePoint, ELensColorChannel Channel)
void	DistortCubemapToImage (FRDGBuilder &GraphBuilder, FRDGTexture *Destination, FRDGTexture **CubeTextures, FRHISamplerState *Sampler, const FDistortCubemapToImageOptions &Options)
void	DistortCubemapToImage (FRDGBuilder &GraphBuilder, UTextureRenderTarget2D *Destination, UTextureRenderTarget2D **CubeRenderTargets, FRHISamplerState *Sampler, const FDistortCubemapToImageOptions &Options)
FRHISamplerState *	GetSampler (ESamplerFilter Filter)
FVector	LensDirToUE (FVector LensDir)
static float	RadialForward (ECameraModel Model, float Theta, TArrayView< const float > Coeffs, TArrayView< const float > LUT, float ThetaMax)
static float	RadialInverse (ECameraModel Model, float Distance, TArrayView< const float > Coeffs, TArrayView< const float > LUT, float ThetaMax)
static float	SelectCAScale (const FLensModelDescriptor &Descriptor, ELensColorChannel Channel)
FVector	UEDirToLens (FVector UEDir)

Enumeration Type Documentation

ELensColorChannel

enum class CameraModelUtil::ELensColorChannel : uint8

strong

Enumerator
Green
Red
Blue

Definition at line 128 of file CameraModelUtil.h.

Function Documentation

ComputeAngle()

float CameraModelUtil::ComputeAngle	(	ECameraModel	CameraModel,
		float	Distance,
		TArrayView< const float >	Coefficients
	)

Definition at line 489 of file CameraModelUtil.cpp.

References CameraModelUtil::KannalaBrandt::ComputeCameraPolynomial(), CameraModelUtil::KannalaBrandt::ComputeCameraPolynomialDerivative(), Equidistant, Equisolid, KannalaBrandt, KannalaBrandtSolverIterations, Orthographic, Perspective, and Stereographic.

Referenced by ASceneCaptureSensor_WideAngleLens::FindFaceIndex().

ComputeDistance()

float CameraModelUtil::ComputeDistance	(	ECameraModel	CameraModel,
		float	Angle,
		int32	ImageHeight,
		TArrayView< const float >	Coefficients
	)

Definition at line 523 of file CameraModelUtil.cpp.

References CameraModelUtil::KannalaBrandt::ComputeCameraPolynomial(), Equidistant, Equisolid, KannalaBrandt, Orthographic, Perspective, and Stereographic.

Referenced by DistortCubemapToImage(), and ASceneCaptureSensor_WideAngleLens::SetFOVAngle().

ComputeLensImagePoint()

FVector2f CameraModelUtil::ComputeLensImagePoint	(	const FLensModelDescriptor &	Descriptor,
		FVector	Direction,
		ELensColorChannel	Channel
	)

Definition at line 1046 of file CameraModelUtil.cpp.

References BrownConrady, FLensModelDescriptor::CenterX, FLensModelDescriptor::CenterY, FLensModelDescriptor::Coeffs, CameraModelUtil::BrownConrady::Distort(), FLensModelDescriptor::FocalX, FLensModelDescriptor::FocalY, FLensModelDescriptor::LUT, FLensModelDescriptor::Model, RadialForward(), SelectCAScale(), and FLensModelDescriptor::ThetaMax.

ComputeLensRayDirection()

FVector CameraModelUtil::ComputeLensRayDirection	(	const FLensModelDescriptor &	Descriptor,
		FVector2f	ImagePoint,
		ELensColorChannel	Channel
	)

Definition at line 1085 of file CameraModelUtil.cpp.

References BrownConrady, FLensModelDescriptor::CenterX, FLensModelDescriptor::CenterY, FLensModelDescriptor::Coeffs, FLensModelDescriptor::FocalX, FLensModelDescriptor::FocalY, FLensModelDescriptor::LUT, FLensModelDescriptor::Model, RadialInverse(), SelectCAScale(), FLensModelDescriptor::ThetaMax, and CameraModelUtil::BrownConrady::Undistort().

DistortCubemapToImage() [1/2]

void CameraModelUtil::DistortCubemapToImage	(	FRDGBuilder &	GraphBuilder,
		FRDGTexture *	Destination,
		FRDGTexture **	CubeTextures,
		FRHISamplerState *	Sampler,
		const FDistortCubemapToImageOptions &	Options
	)

Definition at line 561 of file CameraModelUtil.cpp.

References ApplyDistortionKannalaBrandt(), ApplyDistortionLUT1D(), CameraModelUtil::FDistortCubemapToImageOptions::bExplicitIntrinsics, CameraModelUtil::FDistortCubemapToImageOptions::bRenderEquirectangular, CameraModelUtil::FDistortCubemapToImageOptions::bRenderPerspective, BrownConrady, CameraModelUtil::FDistortCubemapToImageOptions::CameraModel, ComputeDistance(), Equidistant, Equisolid, CameraModelUtil::FDistortCubemapToImageOptions::Intrinsics, KannalaBrandt, CameraModelUtil::FDistortCubemapToImageOptions::KannalaBrandtCoefficients, LUT1D, Orthographic, Perspective, Stereographic, ToPerspective(), CameraModelUtil::FDistortCubemapToImageOptions::YFocalLength, and CameraModelUtil::FDistortCubemapToImageOptions::YFOVAngle.

Referenced by ASceneCaptureSensor_WideAngleLens::CaptureSceneExtended(), and DistortCubemapToImage().

DistortCubemapToImage() [2/2]

void CameraModelUtil::DistortCubemapToImage	(	FRDGBuilder &	GraphBuilder,
		UTextureRenderTarget2D *	Destination,
		UTextureRenderTarget2D **	CubeRenderTargets,
		FRHISamplerState *	Sampler,
		const FDistortCubemapToImageOptions &	Options
	)

Definition at line 730 of file CameraModelUtil.cpp.

References DistortCubemapToImage().

GetSampler()

FRHISamplerState * CameraModelUtil::GetSampler

(

ESamplerFilter

Filter

)

Definition at line 780 of file CameraModelUtil.cpp.

Referenced by ADepthCamera_WideAngleLens::ADepthCamera_WideAngleLens(), AInstanceSegmentationCamera_WideAngleLens::AInstanceSegmentationCamera_WideAngleLens(), ASceneCaptureCamera_WideAngleLens::ASceneCaptureCamera_WideAngleLens(), and ASemanticSegmentationCamera_WideAngleLens::ASemanticSegmentationCamera_WideAngleLens().

LensDirToUE()

FVector CameraModelUtil::LensDirToUE

(

FVector

LensDir

)

Definition at line 1112 of file CameraModelUtil.cpp.

RadialForward()

static float CameraModelUtil::RadialForward ( ECameraModel  Model, float  Theta, TArrayView< const float >  Coeffs, TArrayView< const float >  LUT, float  ThetaMax  )

static

Definition at line 961 of file CameraModelUtil.cpp.

References CameraModelUtil::KannalaBrandt::ComputeCameraPolynomial(), Equidistant, Equisolid, FTheta, KannalaBrandt, LUT1D, Orthographic, Perspective, CameraModelUtil::LUT1D::SampleForward(), CameraModelUtil::FTheta::SolveRadius(), and Stereographic.

Referenced by ComputeLensImagePoint().

RadialInverse()

static float CameraModelUtil::RadialInverse ( ECameraModel  Model, float  Distance, TArrayView< const float >  Coeffs, TArrayView< const float >  LUT, float  ThetaMax  )

static

Definition at line 993 of file CameraModelUtil.cpp.

References CameraModelUtil::KannalaBrandt::ComputeCameraPolynomial(), CameraModelUtil::KannalaBrandt::ComputeCameraPolynomialDerivative(), Equidistant, Equisolid, FTheta, KannalaBrandt, KannalaBrandtSolverIterations, LUT1D, Orthographic, Perspective, CameraModelUtil::FTheta::Polynomial(), CameraModelUtil::LUT1D::SampleInverse(), and Stereographic.

Referenced by ComputeLensRayDirection().

SelectCAScale()

static float CameraModelUtil::SelectCAScale ( const FLensModelDescriptor &  Descriptor, ELensColorChannel  Channel  )

static

Definition at line 1033 of file CameraModelUtil.cpp.

References Blue, FLensModelDescriptor::CAScaleB, FLensModelDescriptor::CAScaleR, and Red.

Referenced by ComputeLensImagePoint(), and ComputeLensRayDirection().

UEDirToLens()

FVector CameraModelUtil::UEDirToLens

(

FVector

UEDir

)

Definition at line 1118 of file CameraModelUtil.cpp.