private void GeneratePackedTexture()
{
var redChannelInput = _channelRedTextureObjectField.value;
var greenChannelInput = _channelGreenTextureObjectField.value;
var blueChannelInput = _channelBlueTextureObjectField.value;
var alphaChannelInput = _channelAlphaTextureObjectField.value;
var width = _widthIntField.value;
var height = _heightIntField.value;
var redChannelTexture = (Texture2D)redChannelInput;
var greenChannelTexture = (Texture2D)greenChannelInput;
var blueChannelTexture = (Texture2D)blueChannelInput;
var alphaChannelTexture = (Texture2D)alphaChannelInput;
// Create the composite texture
Texture2D compositeTexture;
if (_scaleToSpecificValueToggle.value)
{
compositeTexture = TexturePacker.GetCompositeTextureRgb(
_nameIdentifierTextField.text,
redChannelTexture,
greenChannelTexture,
blueChannelTexture,
alphaChannelTexture,
(int)_textureSizeVectorField.value.x,
(int)_textureSizeVectorField.value.y);
}
else
{
compositeTexture = TexturePacker.GetCompositeTextureRgb(
_nameIdentifierTextField.text,
redChannelTexture,
greenChannelTexture,
blueChannelTexture,
alphaChannelTexture);
}
// If inputs are valid, add their names to a list
var validInputsNameList = new List <string>();
if (redChannelTexture)
{
validInputsNameList.Add(redChannelTexture.name);
}
if (greenChannelTexture)
{
validInputsNameList.Add(greenChannelTexture.name);
}
if (blueChannelTexture)
{
validInputsNameList.Add(blueChannelTexture.name);
}
if (alphaChannelTexture)
{
validInputsNameList.Add(alphaChannelTexture.name);
}
// Find the common substring in the names and add the identifier
var compositeTextureName = StringUtilities.GetCommonPrefix(validInputsNameList) + _nameIdentifierTextField.text;
// Find the first valid input and create the path based on that
var listOfTextureInputs = new List <Texture2D>()
{
redChannelTexture,
redChannelTexture,
redChannelTexture,
alphaChannelTexture
};
var relativeCompositeTexturePath =
Path.Combine(
Path.GetDirectoryName(AssetDatabase.GetAssetPath(
GetFirstValidTextureInput(listOfTextureInputs))),
compositeTextureName);
// Save the composite texture
var hasSaved = false;
if (_tgaToggle.value)
{
var newRelativeCompositeTexturePath = relativeCompositeTexturePath + _tgaToggle.label;
var absoluteCompositeTexturePath = Path.Combine(
Directory.GetParent(Application.dataPath).FullName,
newRelativeCompositeTexturePath);
TextureUtilities.SaveTextureToPath(
compositeTexture,
absoluteCompositeTexturePath,
TextureUtilities.TextureUtilitiesFormats.Tga);
hasSaved = true;
}
if (_pngToggle.value)
{
var newRelativeCompositeTexturePath = relativeCompositeTexturePath + _pngToggle.label;
var absoluteCompositeTexturePath = Path.Combine(
Directory.GetParent(Application.dataPath).FullName,
newRelativeCompositeTexturePath);
TextureUtilities.SaveTextureToPath(
compositeTexture,
absoluteCompositeTexturePath,
TextureUtilities.TextureUtilitiesFormats.Png);
hasSaved = true;
}
// Update the previews for the provided images
_previewImageRedChannelVisualElement.style.backgroundImage = redChannelTexture;
_previewImageGreenChannelVisualElement.style.backgroundImage = greenChannelTexture;
_previewImageBlueChannelVisualElement.style.backgroundImage = blueChannelTexture;
_previewImageAlphaChannelVisualElement.style.backgroundImage = alphaChannelTexture;
// If a new texture has been saved to disk, display it and select in the Project Window
if (hasSaved)
{
AssetDatabase.Refresh();
compositeTexture.Apply();
_previewImageResultVisualElement.style.backgroundImage = compositeTexture;
Selection.activeObject = AssetDatabase.LoadAssetAtPath(relativeCompositeTexturePath, typeof(Texture2D));
}
}
