UE::TextureUtilitiesCommon Namespace Reference

Classes
class	TPNGDataFill

Functions
TEXTUREUTILITIESCOMMON_API bool	GetDefaultSRGB (TextureCompressionSettings TC, ETextureSourceFormat ImportImageFormat, bool ImportImageSRGB)
TEXTUREUTILITIESCOMMON_API ETextureImportPNGInfill	GetPNGInfillSetting ()
template<typename ImageClassType >
bool	AutoDetectAndChangeGrayScale (ImageClassType &Image)
template TEXTUREUTILITIESCOMMON_API bool	AutoDetectAndChangeGrayScale (FImage &Image)
template TEXTUREUTILITIESCOMMON_API bool	AutoDetectAndChangeGrayScale (FMipMapImage &Image)
void	FillZeroAlphaPNGData (int32 SizeX, int32 SizeY, ETextureSourceFormat SourceFormat, uint8 *SourceData, bool bDoOnComplexAlphaNotJustBinaryTransparency)
uint32	ParseUDIMName (const FString &Name, const FString &UdimRegexPattern, FString &OutPrefixName, FString &OutPostfixName)
int32	GetUDIMIndex (int32 BlockX, int32 BlockY)
TMap< int32, FString >	GetUDIMBlocksFromSourceFile (const FString &File, const FString &UdimRegexPattern, FString *OutFilenameWithoutUdimPatternAndExtension)
void	ExtractUDIMCoordinates (int32 UDIMIndex, int32 &OutBlockX, int32 &OutBlockY)
template<typename ImageClassType >
TEXTUREUTILITIESCOMMON_API bool	AutoDetectAndChangeGrayScale (ImageClassType &Image)
TEXTUREUTILITIESCOMMON_API bool	IsImportResolutionValid (int64 Width, int64 Height, bool bAllowNonPowerOfTwo, FText *OutErrorMessage)

Variables
constexpr int32	UDIM_Max_X = 9
constexpr int32	UDIM_Max_Y = 90
constexpr int32	UDIM_Min_Index = 1001
constexpr int32	UDIM_Max_Index = UDIM_Min_Index + UDIM_Max_X + UDIM_Max_Y * 10
constexpr const TCHAR *	DefaultUdimRegexPattern = TEXT(R"((.+?)[._](\d{4})$)")

Function Documentation

AutoDetectAndChangeGrayScale() [1/4]

template TEXTUREUTILITIESCOMMON_API bool UE::TextureUtilitiesCommon::AutoDetectAndChangeGrayScale

(

FImage &

Image

)

AutoDetectAndChangeGrayScale() [2/4]

template TEXTUREUTILITIESCOMMON_API bool UE::TextureUtilitiesCommon::AutoDetectAndChangeGrayScale

(

FMipMapImage &

Image

)

AutoDetectAndChangeGrayScale() [3/4]

template<typename ImageClassType >

bool UE::TextureUtilitiesCommon::AutoDetectAndChangeGrayScale

(

ImageClassType &

Image

)

Detect the existence of gray scale image in some formats and convert those to a gray scale equivalent image

Returns

true if the image was converted

AutoDetectAndChangeGrayScale() [4/4]

template<typename ImageClassType >

TEXTUREUTILITIESCOMMON_API bool UE::TextureUtilitiesCommon::AutoDetectAndChangeGrayScale

(

ImageClassType &

Image

)

Detect the existence of gray scale image in some formats and convert those to a gray scale equivalent image

Returns

true if the image was converted

ExtractUDIMCoordinates()

TEXTUREUTILITIESCOMMON_API void UE::TextureUtilitiesCommon::ExtractUDIMCoordinates	(	int32	UDIMIndex,
		int32 &	OutBlockX,
		int32 &	OutBlockY
	)

FillZeroAlphaPNGData()

TEXTUREUTILITIESCOMMON_API void UE::TextureUtilitiesCommon::FillZeroAlphaPNGData	(	int32	SizeX,
		int32	SizeY,
		ETextureSourceFormat	SourceFormat,
		uint8 *	SourceData,
		bool	bDoOnComplexAlphaNotJustBinaryTransparency
	)

For PNG texture importing, this ensures that any pixels with an alpha value of zero have an RGB assigned to them from a neighboring pixel which has non-zero alpha. This is needed as PNG exporters tend to turn pixels that are RGBA = (x,x,x,0) to (1,1,1,0) and this produces artifacts when drawing the texture with bilinear filtering.

Parameters

TextureSource	- The source texture
SourceData	- The source texture data

GetDefaultSRGB()

TEXTUREUTILITIESCOMMON_API bool UE::TextureUtilitiesCommon::GetDefaultSRGB	(	TextureCompressionSettings	TC,
		ETextureSourceFormat	ImportImageFormat,
		bool	ImportImageSRGB
	)

GetPNGInfillSetting()

TEXTUREUTILITIESCOMMON_API ETextureImportPNGInfill UE::TextureUtilitiesCommon::GetPNGInfillSetting

(

)

Resolves PNG infill setting using, in order of preference, per-project user settings, project settings, and legacy config settings.

GetUDIMBlocksFromSourceFile()

TEXTUREUTILITIESCOMMON_API TMap< int32, FString > UE::TextureUtilitiesCommon::GetUDIMBlocksFromSourceFile	(	const FString &	File,
		const FString &	UdimRegexPattern,
		FString *	OutFilenameWithoutUdimPatternAndExtension = nullptr
	)

Parse the file for the UDIM pattern If the pattern is found search in the folder of the file for the others blocks

GetUDIMIndex()

TEXTUREUTILITIESCOMMON_API int32 UE::TextureUtilitiesCommon::GetUDIMIndex	(	int32	BlockX,
		int32	BlockY
	)

IsImportResolutionValid()

bool UE::TextureUtilitiesCommon::IsImportResolutionValid	(	int64	Width,
		int64	Height,
		bool	bAllowNonPowerOfTwo,
		FText *	OutErrorMessage
	)

Tests if the given height and width specify a supported texture resolution to import; Can optionally check if the height/width are powers of two

Parameters

Width	The width of an imported texture whose validity should be checked
Height	The height of an imported texture whose validity should be checked
bAllowNonPowerOfTwo	Whether or not non-power-of-two textures are allowed
OutErrorMessage	Optional output for an error message

Returns

bool true if the given height/width represent a supported texture resolution, false if not

NOTE: may open a dialog box to ask user if large non-VT import is wanted!

ParseUDIMName()

TEXTUREUTILITIESCOMMON_API uint32 UE::TextureUtilitiesCommon::ParseUDIMName	(	const FString &	Name,
		const FString &	UdimRegexPattern,
		FString &	OutPrefixName,
		FString &	OutPostfixName
	)

Variable Documentation

DefaultUdimRegexPattern

constexpr const TCHAR* UE::TextureUtilitiesCommon::DefaultUdimRegexPattern = TEXT(R"((.+?)[._](\d{4})$)")

constexpr

UDIM_Max_Index

constexpr int32 UE::TextureUtilitiesCommon::UDIM_Max_Index = UDIM_Min_Index + UDIM_Max_X + UDIM_Max_Y * 10

constexpr

UDIM_Max_X

constexpr int32 UE::TextureUtilitiesCommon::UDIM_Max_X = 9

constexpr

UDIM_Max_Y

constexpr int32 UE::TextureUtilitiesCommon::UDIM_Max_Y = 90

constexpr

UDIM_Min_Index

constexpr int32 UE::TextureUtilitiesCommon::UDIM_Min_Index = 1001

constexpr