virtual bool PrepareTiling ( const [FImage](API\Runtime\ImageCore\FImage) * Images, const uint32 NumImages, const [FTextureBuildSettings](API\Developer\TextureCompressor\FTextureBuildSettings) & BuildSettings, bool bImageHasAlphaChannel, [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FTilerSettings](API\Developer\TextureFormat\Interfaces\ITextureFormat\FTilerSettings) > & OutTilerSettings, [TArray](API\Runtime\Core\Containers\TArray)< [FCompressedImage2D](API\Developer\TextureCompressor\FCompressedImage2D) > & OutCompressedImage ) const