three.js/src/materials/ParticleBasicMaterial.js

/**
 * @author mr.doob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *  map: new THREE.Texture( <Image> ),
 *
 *  size: <float>,
 *
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *
 *  vertexColors: <bool>,
 *
 *  fog: <bool>
 * }
 */

THREE.ParticleBasicMaterial = function ( parameters ) {

	THREE.Material.call( this, parameters );

	parameters = parameters || {};

	this.color = parameters.color !== undefined ? new THREE.Color( parameters.color ) : new THREE.Color( 0xffffff );

	this.map = parameters.map !== undefined ? parameters.map : null;

	this.size = parameters.size !== undefined ? parameters.size : 1;
	this.sizeAttenuation = parameters.sizeAttenuation !== undefined ? parameters.sizeAttenuation : true;

	this.vertexColors = parameters.vertexColors !== undefined ? parameters.vertexColors : false;

	this.fog = parameters.fog !== undefined ? parameters.fog : true;

};

THREE.ParticleBasicMaterial.prototype = new THREE.Material();
THREE.ParticleBasicMaterial.prototype.constructor = THREE.ParticleBasicMaterial;