;

				} );

				gui.add( params, 'visualize threshold' ).onChange( function ( val ) {

					matThresholdLine.visible = val;

				} );

				gui.add( params, 'width', 1, 10 ).onChange( function ( val ) {

					matLine.linewidth = val;
					matThresholdLine.linewidth = matLine.linewidth + raycaster.params.Line2.threshold;

				} );

				gui.add( params, 'alphaToCoverage' ).onChange( function ( val ) {

					matLine.alphaToCoverage = val;

				} );

				gui.add( params, 'threshold', 0, 10 ).onChange( function 