/**
* pass in System.IO.File.WriteAllBytes for parameter fileSaveFunction. This is necessary because on Web Player file saving
* functions only exist for Editor classes
*/
public void SaveAtlasToAssetDatabase(Texture2D atlas, ShaderTextureProperty texPropertyName, int atlasNum, Material resMat)
{
if (atlas == null)
{
SetMaterialTextureProperty(resMat, texPropertyName, null);
}
else
{
string prefabPth = AssetDatabase.GetAssetPath(resMat);
if (prefabPth == null || prefabPth.Length == 0)
{
Debug.LogError("Could save atlas. Could not find result material in AssetDatabase.");
return;
}
string baseName = Path.GetFileNameWithoutExtension(prefabPth);
string folderPath = prefabPth.Substring(0, prefabPth.Length - baseName.Length - 4);
string fullFolderPath = Application.dataPath + folderPath.Substring("Assets".Length, folderPath.Length - "Assets".Length);
string pth = fullFolderPath + baseName + "-" + texPropertyName.name + "-atlas" + atlasNum;
string relativePath = folderPath + baseName + "-" + texPropertyName.name + "-atlas" + atlasNum;
//need to create a copy because sometimes the packed atlases are not in ARGB32 format
Texture2D newTex = MeshBakerUtility.createTextureCopy(atlas);
int size = Mathf.Max(newTex.height, newTex.width);
if (SAVE_FORMAT == saveTextureFormat.png)
{
pth += ".png";
relativePath += ".png";
byte[] bytes = newTex.EncodeToPNG();
System.IO.File.WriteAllBytes(pth, bytes);
}
else
{
pth += ".tga";
relativePath += ".tga";
if (File.Exists(pth))
{
File.Delete(pth);
}
//Create the file.
FileStream fs = File.Create(pth);
MB_TGAWriter.Write(newTex.GetPixels(), newTex.width, newTex.height, fs);
}
UnityEditor.Editor.DestroyImmediate(newTex);
AssetDatabase.Refresh();
Debug.Log(String.Format("Wrote atlas for {0} to file:{1}", texPropertyName.name, pth));
Texture2D txx = (Texture2D)(AssetDatabase.LoadAssetAtPath(relativePath, typeof(Texture2D)));
SetTextureSize(txx, size);
SetMaterialTextureProperty(resMat, texPropertyName, relativePath);
}
}