FLensDistortionCameraModel

Mathematic camera model for lens distortion/undistortion.

Windows
MacOS
Linux

References

Module

LensDistortion

Header

/Engine/Plugins/Compositing/LensDistortion/Source/LensDistortion/Classes/LensDistortionAPI.h

Include

#include "LensDistortionAPI.h"

Syntax

[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)([BlueprintType](Programming/UnrealArchitecture/Reference/Structs/Specifiers/BlueprintType))
struct FLensDistortionCameraModel

Remarks

Mathematic camera model for lens distortion/undistortion.

Camera matrix = | F.X 0 C.x | | 0 F.Y C.Y | | 0 0 1 |

Variables

Name Description

Public variable UProperty Category, EditAnywhere, Interp BlueprintReadWrite

FVector2D

 

C

Camera matrix's Cx and Cy.

Public variable UProperty Category, EditAnywhere, Interp BlueprintReadWrite

FVector2D

 

F

Camera matrix's Fx and Fy.

Public variable UProperty Category, EditAnywhere, Interp BlueprintReadWrite

float

 

K1

Radial parameter #1.

Public variable UProperty Category, EditAnywhere, Interp BlueprintReadWrite

float

 

K2

Radial parameter #2.

Public variable UProperty Category, EditAnywhere, Interp BlueprintReadWrite

float

 

K3

Radial parameter #3.

Public variable UProperty Category, EditAnywhere, Interp BlueprintReadWrite

float

 

P1

Tangential parameter #1.

Public variable UProperty Category, EditAnywhere, Interp BlueprintReadWrite

float

 

P2

Tangential parameter #2.

Constructors

Name Description

Public function

FLensDistortionCameraModel()

Functions

Name Description

Public function Const

void

 

DrawUVDisplacementToRenderTarget

(
    UWorld* World,
    float DistortedHorizontalFOV,
    float DistortedAspectRatio,
    float UndistortOverscanFactor,
    UTextureRenderTarget2D* Output...,
    float OutputMultiply,
    float OutputAdd
)

Draws UV displacement map within the output render target.

Public function Const

float

 

GetUndistortOverscanFactor

(
    float DistortedHorizontalFOV,
    float DistortedAspectRatio
)

Returns the overscan factor required for the undistort rendering to avoid unrendered distorted pixels.

Public function Const

FVector2D

 

UndistortNormalizedViewPosition

(
    FVector2D V
)

Undistorts 3d vector (x, y, z=1.f) in the view space and returns (x', y', z'=1.f).

Operators

Name Description

Public function Const

bool

 

operator!=

(
    const FLensDistortionCameraModel& ...
)

Compare two lens distortion models and return whether they are different.

Public function Const

bool

 

operator==

(
    const FLensDistortionCameraModel& ...
)

Compare two lens distortion models and return whether they are equal.
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