three.js/src/textures/DataTexture.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.DataTexture = function ( data, width, height, format, mapping, wrapS, wrapT, magFilter, minFilter ) {

	THREE.Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter );

	this.image = { data: data, width: width, height: height };

	this.format = format !== undefined ? format : THREE.RGBAFormat;

};

THREE.DataTexture.prototype = new THREE.Texture();
THREE.DataTexture.prototype.constructor = THREE.DataTexture;

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

	var clonedTexture = new THREE.DataTexture( this.data.slice( 0 ), this.mapping, this.wrapS, this.wrapT, this.magFilter, this.minFilter );

	clonedTexture.offset.copy( this.offset );
	clonedTexture.repeat.copy( this.repeat );

	return clonedTexture;

};