code: function (m) {
              var bounds = this.getBounds();
              this.currentTransform.multiply(m);
              bounds.setPoints(bounds.transform(m).points);
              bounds.pos.setV(this.pos);
              return this;
          }
docs: multiply the renderable currentTransform with the given matrix
  @name transform
  @memberOf me.Renderable.prototype
  @see me.Renderable#currentTransform
  @function
  @param {me.Matrix2d} matrix the transformation matrix
  @return {me.Renderable} Reference to this object for method chaining