update() {

		if ( this.initialized === false ) {

			this.init();

		}

		for ( const helper of this._shadowCamHelpers ) {

			if ( helper ) {

				helper.update(); // Update CameraHelper matrices
				helper.updateMatrixWorld( true ); // Ensure world matrix is current

			}

		}

	}
Updates the debug visuals (specifically camera helpers).
Should be called within TileShadowNode's update method.