Editor.SpriteNormalsToolWindow.OnGUI C# (CSharp) Method

        public void OnGUI()
        {
            EditorGUILayout.BeginVertical();
            {
                horizontalNormals = EditorGUILayout.ObjectField("Horizontal normals", horizontalNormals, typeof(Texture2D), true) as Texture2D;
                VerticalNormals = EditorGUILayout.ObjectField("Vertical normals", VerticalNormals, typeof(Texture2D), true) as Texture2D;
                EditorGUILayout.Space();
                OutputTexture = EditorGUILayout.ObjectField("Output texture", OutputTexture, typeof(Texture2D), true) as Texture2D;
                if (horizontalNormals == null || VerticalNormals == null)
                    GUI.enabled = false;
                if (GUILayout.Button("Generate normals"))
                    GenerateNormalsMap(horizontalNormals, VerticalNormals);
                GUI.enabled = true;
            }
            EditorGUILayout.EndVertical();
        }