ServerCharlie thanks for reply, tried in this way:  AssetsManager.prototype.getBigMovieClip = function(resName, length) { var frames = []; for (var i = 0; i < length; i++) { var fr = this.getFrames(resName + "_" + i); renderer.plugins.prepare.upload(fr); frames = frames.concat(fr); } var fr_set = []; for (var j = 0; j < frames.length; j++) { var frame = { texture: frames[j], time: 50 }; fr_set.p