public static void SplitChannelETC(Material mat)
{
if (mat.shader.name != ShaderId.UI)
{
return;
}
string[] paths = TextureUtil.SplitChannel4ETC(mat.mainTexture);
string rgbPath = paths[0];
string aPath = paths[1];
if (mat.mainTexture.width == mat.mainTexture.height)
{
mat.shader = Shader.Find(ShaderId.UI_SPLIT);
mat.SetTexture("_MainTex", AssetDatabase.LoadAssetAtPath <Texture>(rgbPath));
mat.SetTexture("_AlphaTex", AssetDatabase.LoadAssetAtPath <Texture>(aPath));
}
else if (mat.mainTexture.width == mat.mainTexture.height * 2)
{
string appendPath = TextureUtil.AppendVertically(rgbPath, aPath);
mat.shader = Shader.Find(ShaderId.UI_VERT);
mat.SetVector("_Coord", new Vector4(0.5f, 0, 0.5f, 0.5f));
mat.SetTexture("_MainTex", AssetDatabase.LoadAssetAtPath <Texture>(appendPath));
}
BuildScript.SetDirty(mat);
AssetDatabase.SaveAssets();
}
