void LoadHeights() { showLoadHeights = EditorGUILayout.Foldout(showLoadHeights, "Load Heights"); if (showLoadHeights) { EditorGUILayout.LabelField("", GUI.skin.horizontalSlider); GUILayout.Label("Load Heights From Texture", EditorStyles.boldLabel); EditorGUILayout.PropertyField(heightMapTexture); EditorGUILayout.PropertyField(heightMapScale); if (GUILayout.Button("Load Texture")) { terrain.LoadHeightsFromTexture(); } } }