three.js/src/renderers/renderables/RenderableFace.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.RenderableFace = function () {

	this.id = 0;

	this.v1 = new THREE.RenderableVertex();
	this.v2 = new THREE.RenderableVertex();
	this.v3 = new THREE.RenderableVertex();

	this.normalModel = new THREE.Vector3();

	this.vertexNormalsModel = [ new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3() ];
	this.vertexNormalsLength = 0;

	this.color = new THREE.Color();
	this.material = null;
	this.uvs = [ new THREE.Vector2(), new THREE.Vector2(), new THREE.Vector2() ];

	this.z = 0;

};