three.js/src/materials/LineDashedMaterial.js

/**
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  linewidth: <float>,
 *
 *  scale: <float>,
 *  dashSize: <float>,
 *  gapSize: <float>,
 *
 *  vertexColors: <bool>
 *
 *  fog: <bool>
 * }
 */

THREE.LineDashedMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'LineDashedMaterial';

	this.color = new THREE.Color( 0xffffff );

	this.linewidth = 1;

	this.scale = 1;
	this.dashSize = 3;
	this.gapSize = 1;

	this.vertexColors = false;

	this.fog = true;

	this.setValues( parameters );

};

THREE.LineDashedMaterial.prototype = Object.create( THREE.Material.prototype );

THREE.LineDashedMaterial.prototype.clone = function () {

	var material = new THREE.LineDashedMaterial();

	THREE.Material.prototype.clone.call( this, material );

	material.color.copy( this.color );

	material.linewidth = this.linewidth;

	material.scale = this.scale;
	material.dashSize = this.dashSize;
	material.gapSize = this.gapSize;

	material.vertexColors = this.vertexColors;

	material.fog = this.fog;

	return material;

};