// Opens a directory selection dialog for saving PNG files
// and saves all selected textures to the file.

import System.IO;

@MenuItem("Examples/Save Textures to directory")
static function Apply () {

var textures = Selection.GetFiltered( Texture2D, SelectionMode.Unfiltered);
if (textures.Length == 0) {
EditorUtility.DisplayDialog("Select Textures",
"The selection must contain at least one texture!", "Ok");
return;
}

var path = EditorUtility.SaveFolderPanel("Save textures to directory", "", "");

if (path.Length != 0) {
for( var texture : Texture2D in textures) {
// Convert the texture to a format compatible with EncodeToPNG
if (texture.format != TextureFormat.ARGB32 && texture.format != TextureFormat.RGB24) {
var newTexture = Texture2D(texture.width, texture.height);
newTexture.SetPixels(texture.GetPixels(0),0);
texture = newTexture;
}
var pngData = texture.EncodeToPNG();
if (pngData != null )
File.WriteAllBytes(path + "/" + texture.name + ".png", pngData);
else
Debug.Log("Could not convert " + texture.name + " to png. Skipping saving texture");
}
}
}