The ZBrush to KeyShot Bridge is a special plugin that is pre-installed with ZBrush 4R7 and above. It allows you to use any version of KeyShot 5 or above as an external renderer.
Simply load a model in ZBrush and turn on Render >> External Renderer >> KeyShot. For the rest of your ZBrush session (or until turned off), doing a BPR will send your scene to KeyShot rather than rendering in ZBrush.
The ZBrush to KeyShot Bridge sends virtually everything that you can see in your ZBrush scene to KeyShot with no need for special set up. This includes Array Mesh, NanoMesh, Fibers, PolyPaint and much more! Of course, once your scene is in KeyShot you can also change materials there with its simple drag-and-drop interface. You can also change your lighting and environment with equal ease.
It is important to understand that the ZBrush to KeyShot Bridge does not include KeyShot! It is simply a plugin to send your scene to KeyShot. If you do not have a KeyShot license then you will need one in order to make use of the Bridge. KeyShot is only available for purchase from Luxion.