import System;

 import System.IO;

 class SaveCubeMapToPngWizard extends ScriptableWizard {

 var cubemap : Cubemap;

 function OnWizardUpdate () {
 helpString = "Select cubemap to save to individual png";
 isValid = (cubemap != null);
 }

 function OnWizardCreate ()
 {
     var width = cubemap.width;
     var height = cubemap.height;

     Debug.Log(Application.dataPath + "/" +cubemap.name +"_PositiveX.png");
     var tex = new Texture2D (width, height, TextureFormat.RGB24, false);
     // Read screen contents into the texture
     tex.SetPixels(cubemap.GetPixels(CubemapFace.PositiveX));
     // Encode texture into PNG
     var bytes = tex.EncodeToPNG();
      File.WriteAllBytes(Application.dataPath + "/"  + cubemap.name +"_PositiveX.png", bytes);

      tex.SetPixels(cubemap.GetPixels(CubemapFace.NegativeX));
      bytes = tex.EncodeToPNG();
      File.WriteAllBytes(Application.dataPath + "/"  + cubemap.name +"_NegativeX.png", bytes);

      tex.SetPixels(cubemap.GetPixels(CubemapFace.PositiveY));
      bytes = tex.EncodeToPNG();
      File.WriteAllBytes(Application.dataPath + "/"  + cubemap.name +"_PositiveY.png", bytes);

      tex.SetPixels(cubemap.GetPixels(CubemapFace.NegativeY));
      bytes = tex.EncodeToPNG();
      File.WriteAllBytes(Application.dataPath + "/"  + cubemap.name +"_NegativeY.png", bytes);

      tex.SetPixels(cubemap.GetPixels(CubemapFace.PositiveZ));
      bytes = tex.EncodeToPNG();
      File.WriteAllBytes(Application.dataPath + "/"  + cubemap.name +"_PositiveZ.png", bytes);

      tex.SetPixels(cubemap.GetPixels(CubemapFace.NegativeZ));
      bytes = tex.EncodeToPNG();
      File.WriteAllBytes(Application.dataPath + "/"  + cubemap.name +"_NegativeZ.png", bytes);


      DestroyImmediate(tex);
 }

 @MenuItem("GameObject/Save CubeMap To Png ")
 static function SaveCubeMapToPng  ()
 {
     ScriptableWizard.DisplayWizard(
     "Save CubeMap To Png", SaveCubeMapToPngWizard , "Save");
 }
 }