Optical Research Associates has announced CODE V release 9.4, which adds powerful system visualization capabilities to this popular optical design program. The new interactive 3-D viewing feature lets users create detailed 3-D renderings (solid, translucent or wireframe) of an optical system, which can be dynamically rotated, panned and zoomed. Within the interactive 3-D model, surface properties can be viewed and changed with a mouse click, allowing the designer to efficiently modify system parameters. The ability to rapidly visualize and explore system characteristics provides a more powerful means of diagnosing design issues and visualizing complex system geometries. CODE V 9.4 also provides closer integration with the optomechanical design process with the introduction of STEP, SAT and enhanced IGES file export capabilities for data sharing with CAD solid modeling programs. These new capabilities are particularly useful for complex optical assemblies, such as off-axis systems with folded geometries, lens arrays and densely packed systems.