Generally speaking, we have replaced markers with 3D models and rendering, however when the opportunity presents itself we are not helpless without our tablets. Occasionally a traditional, more direct approach is preferred to develop concepts and brainstorm ideas before switching to computers.
Our approach to set design has changed over the years. With the introduction of 3D CAD software into the workflow, time from concept to fabrication has been greatly reduced. In addition concept renderings more accurately represent the look and scale of the final set. The model generated to produce the rendering is reused to create the fabrication drawings, as well as any tooling paths required for automated processes such as CNC milling, routering, laser or waterjet cutting. Having all the data stream from the same source not only ensures continuity, it also reduces production time.