Technical document layout and presentation requires 3D images. If Draw included a 3D rendering tool, the technical writer could rotate, scale, markup, and present a fathfull engineering design to integrated illustration publication without cut and paste. I do not think Draw needs 3D design tools. In a way, I do not want technical writers and illuratators to edit eningeering models. Rendering preserves the engineering model and still incorporates the art into the page's message context.