1. Epic GamesDeveloper
  3. USubUVAnimation

USubUVAnimation

SubUV animation asset, which caches bounding geometry for regions in the SubUVTexture with non-zero opacity.

API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Particles

Inheritance Hierarchy

References

   
Module Engine
Header /Engine/Source/Runtime/Engine/Classes/Particles/SubUVAnimation.h
Include #include "Particles/SubUVAnimation.h"

Syntax

class USubUVAnimation : public UObject

Remarks

SubUV animation asset, which caches bounding geometry for regions in the SubUVTexture with non-zero opacity. Particle emitters with a SubUV module which use this asset leverage the optimal bounding geometry to reduce overdraw.

Variables

  Type Name Description
Public variable float AlphaThreshold Alpha channel values larger than the threshold are considered occupied and will be contained in the bounding geometry.
Public variable TEnumAsByte< enum ESubUVBoundingVertexCount > BoundingMode More bounding vertices results in reduced overdraw, but adds more triangle overhead.
Public variable TEnumAsByte< enum EOpacitySourceMode > OpacitySourceMode  
Public variable int32 SubImages_Horizontal The number of sub-images horizontally in the texture
Public variable int32 SubImages_Vertical The number of sub-images vertically in the texture
Public variable TObjectPtr< UTexture2D > SubUVTexture Texture to generate bounding geometry from.

Constructors

  Type Name Description
Public function  

USubUVAnimation ( const FObjectInitializer& ObjectInitializer
)

  

Functions

  Type Name Description
Public function Const FRHIShaderResourceView *  
Public function Const const FVector2f *

GetFrameData ( int32 FrameIndex
)

  
Public function Const int32  
Public function Const int32  
Public function Const int32  
Public function Const bool  

Overridden from UObject

  Type Name Description
Public function Virtual void Called before destroying the object.
Public function Virtual void Called to finish destroying the object.
Public function Virtual bool Called to check if the object is ready for FinishDestroy.
Public function Virtual void

PostEditChangeProperty ( FPropertyChangedEvent& PropertyChangedEvent
)

 Called when a property on this object has been modified externally
Public function Virtual void Called after the C++ constructor and after the properties have been initialized, including those loaded from config.
Public function Virtual void Do any object-specific cleanup required immediately after loading an object.
Public function Virtual void

PreEditChange ( FProperty* PropertyAboutToChange
)

 This is called when a property is about to be modified externally
Public function Virtual void Handles reading, writing, and reference collecting using FArchive.

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page