public static void drawNormals(SceneElement spat, Renderer r) { drawNormals(spat, r, -1f, true);
public static void drawNormals(SceneElement element, Renderer r) { drawNormals(element, r, -1f, true);
    public static void drawNormals(SceneElement spat, Renderer r) {        drawNormals(spat, r, -1f, true);    }