The Render Settings tab gives you access to all the rendering parameters.
Render Mode: switch between Interactive and Production mode
Engine: displays the engine list based on the render mode that is selected
Supersampling: Corresponds to the supersampling used for the image output.
None ‐ No supersampling, Normal ‐ 2x2, High ‐ 3x3
Auto ‐ No supersampling in IR, Normal in Production Mode.
Motion Blur: Enables motion blur for all visible animated objects.
Displacement: Enables/Disables displacement for every object.
Volumetric Scattering: Enables/Disables the rendering of participating media. If disabled, Volumetric (Medium) and Sub Surface Scattering (SSS) won't be rendered.
Relight: Enables the Relight functionality. Relight needs to be enabled before starting a rendering.
This section displays the settings of the selected render engine. Find more details for all the engines here.
Enabling this option, all materials in the scene will be rendered as diffuse gray, giving the final image a clay effect.
Reflectance (%): Increases/Decreases the diffuse material reflectance.
Threads: Defines the threads that will be used during rendering. Max corresponds to the maximum number of logical cores on your machine.
Priority: Corresponds to the priority assigned to render threads by the operating system.
Network: sets render engine in single workstation (None) or acting as Server, in network rendering.
Port: Corresponds to the server port used by the application during network rendering.
In this area you will find listed, all the compatible devices that have been recognized by Thea for Rhino. It is possible to enable/disable devices and also set their priority.