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  3. FTexture2DBuilder

FTexture2DBuilder

Texture2DBuilder is a utility class for creating/modifying various types of [UTexture2D](API\Runtime\Engine\Engine\UTexture2D).

API > API/Plugins > API/Plugins/ModelingComponents > API/Plugins/ModelingComponents/AssetUtils

References

   
Module ModelingComponents
Header /Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/AssetUtils/Texture2DBuilder.h
Include #include "AssetUtils/Texture2DBuilder.h"

Syntax

class FTexture2DBuilder

Remarks

Texture2DBuilder is a utility class for creating/modifying various types of UTexture2D. Use Initialize() functions to configure, can either generate a new UTexture2D (in the Transient package) or modify an existing UTexture2D.

Currently the generated UTexture2D will only have Mip 0, and only Mip 0 can be edited. The generated UTexture2D has format PF_B8G8R8A8 or PF_FloatRGBA.

Use Commit() to lock and update the texture after editing is complete. LockForEditing() can be used to re-open. By default textures are locked for editing on Initialize()

If you have generated a UTexture2D by other means, you can use the static function ::CopyPlatformDataToSourceData() to populate the Source data from the PlatformData, which is required to save it as a UAsset.

Variables

  Type Name Description
Protected variable ETextureType BuildType  
Protected variable FColor * CurrentMipData  
Protected variable FFloat16Color * CurrentMipDataFloat16  
Protected variable EPixelFormat CurrentPixelFormat  
Protected variable FImageDimensions Dimensions  
Protected variable UTexture2D * RawTexture2D  

Destructors

  Type Name Description
Public function Virtual    

Functions

  Type Name Description
Public function Static UTexture2D *

BuildTextureFromImage ( const TImageBuilder< PixelType >& SourceImage,
FTexture2DBuilder::ETextureType TextureType,
const bool bConvertToSRGB,
bool bPopulateSourceData
)

 Create a new UTexture2D of the given TextureType from the given SourceImage
Public function void

Cancel ()

 Cancel active editing and unlock the texture data
Public function void

Clear ( const FFloat16Color& ClearColor
)

 Clear all texels in the current Mip to the given ClearColor
Public function void

Clear ( const FColor& ClearColor
)

 Clear all texels in the current Mip to the given ClearColor
Public function void

Clear ()

 Clear all texels in the current Mip to the clear/default color for the texture build type
Public function void

Commit ( bool bUpdateSourceData
)

 Unlock the Mip 0 buffer and update the texture rendering data.
Public function bool

Copy ( const TImageBuilder< FVector4f >& SourceImage,
const bool bConvertToSRGB
)

 Populate texel values from floating-point SourceImage.
Public function bool

Copy ( const TImageBuilder< FVector3f >& SourceImage,
const bool bConvertToSRGB
)

 Populate texel values from floating-point SourceImage
Public function bool

CopyImageToSourceData ( const TImageBuilder< FVector4f >& SourceImage,
const ETextureSourceFormat SourceDataFormat,
const bool bConvertToSRGB
)

 Populate Source Data texel values from a floating point SourceImage
Public function Static bool Use a FTexture2DBuilder to copy the PlatformData to the UTexture2D Source data, so it can be saved as an Asset
Public function void

CopyTexel ( int64 FromLinearIndex,
int64 ToLinearIndex
)

 Copy texel value from one linear index to another
Public function Const bool

CopyTo ( TImageBuilder< FVector4f >& DestImage
)

 Copy existing texel values to floating-point DestImage.
Public function Const const FColor &  
Public function Const FFloat16Color  
Public function Const const FImageDimensions &  
Public function Const const void * This point is invalid after the texture is Committed!
Public function void * This point is invalid after the texture is Committed!
Public function Const const FColor &

GetTexel ( const FVector2i& ImageCoords
)

 Get the FColor texel at the given X/Y coordinates
Public function Const const FColor &

GetTexel ( int64 LinearIndex
)

 Get the FColor texel at the given linear index
Public function Const const FFloat16Color &

GetTexelFloat16 ( const FVector2i& ImageCoords
)

 Get the FFloat16Color texel at the given X/Y coordinates
Public function Const const FFloat16Color &

GetTexelFloat16 ( int64 LinearIndex
)

 Get the FFloat16Color texel at the given linear index
Public function Const UTexture2D *  
Public function Const const EPixelFormat  
Public function Const const ETextureType  
Public function bool

Initialize ( ETextureType BuildTypeIn,
FImageDimensions DimensionsIn
)

 Create a new UTexture2D configured with the given BuildType and Dimensions
Public function bool

Initialize ( UTexture2D* ExistingTexture,
ETextureType BuildTypeIn,
bool bLockForEditing
)

 Initialize the builder with an existing UTexture2D
Public function bool

InitializeAndReplaceExistingTexture ( UTexture2D* ExistingTexture,
ETextureType BuildTypeIn,
FImageDimensions DimensionsIn
)

 Create a new UTexture2D 'over' an existing UTexture2D, with the given BuildType and Dimensions
Public function bool

InitializeAndReplaceExistingTexture ( UTexture2D* ExistingTexture,
UTexture2D* SourceTexture
)

 Create a new UTexture2D 'over' an existing UTexture2D using the same texture settings as a given source UTexture2D.
Public function Const const bool  
Public function Const bool  
Public function Const const bool  
Public function bool Lock the Mip 0 buffer for editing
Public function void

SetTexel ( int64 LinearIndex,
const FColor& NewValue
)

 Set the texel at the given linear index to the given FColor
Public function void

SetTexel ( int64 LinearIndex,
const FFloat16Color& NewValue
)

 Set the texel at the given linear index to the given FFloat16Color
Public function void

SetTexel ( const FVector2i& ImageCoords,
const FFloat16Color& NewValue
)

 Set the texel at the given X/Y coordinates to the given FFloat16Color
Public function void

SetTexel ( const FVector2i& ImageCoords,
const FColor& NewValue
)

 Set the texel at the given X/Y coordinates to the given FColor
Public function void Copy the current PlatformData to the UTexture2D Source Data.

Enums

  Type Name Description
Public enum ETextureType Supported texture types.  

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