             const directionalLight = new DirectionalLight(0xffffff, 2);
                directionalLight.position.set(5, 5, 5);

                this.scene.add(hemisphereLight);
                this.scene.add(directionalLight);

                // Important: Make sure your lights are on!
                // hemisphereLight.layers.enable(layers.hologram);
                // directionalLight.layers.enable(layers.hologram);
                // hemisphereLight.layers.enable(layers.glow);
                // direc