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This page provides information about the Distributed Rendering rollout available under the Perf. tab when the production render is V-Ray GPU. 

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This rollout in the Perf. tab deals with Distributed rendering. Distributed rendering is the process of computing a single image over several different machines.

Before you can use the distributed rendering option, you must determine the machines that will take part in the computations.V-Ray should be properly installed on those machines and V-Ray GPU Render Server application must be running: either as a service or as a standalone application.

For additional information on configuring and running distributed rendering, please refer to the Set Up Distributed Rendering.


UI Path


||Render Setup window|| > Performance tab > Distributed Rendering rollout





On – Enables distributed rendering.

Render servers button – Opens the V-Ray Interactive renderer DR settings window. 



Add server – Click to manually add a server by entering its IP address or network name.

Edit server – Click to change data about a render server.

Remove server – Deletes the currently selected server(s) from the list.

Resolve  – Resolves the IP addresses of all servers.

Use local host – Determines whether V-Ray should run on the local machine when DR is used. When enabled, V-Ray runs on the local machine as well as on all machines included in the distributed rendering. When disabled, V-Ray does not run on the local machine and instead it only uses the render servers. Use this option when the local machine is needed for other computational tasks.

Render region warning – When enabled, V-Ray displays a warning if the render region option is enabled before sending a job to the network. 

These settings can be adjusted while V-Ray is rendering. Note that progressive production mode and GPU(CPU and GPU) mode only allow adding and enabling servers on the fly. CPU Bucket mode supports both adding and removing servers on the fly.


By default, the render slave machine will use all its graphic cards in CUDA DR rendering, if nothing was specified beforehand.


Set up CUDA Devices for DR

V-Ray GPU can run on one or more CUDA-capable graphics cards. To specify which cards are to be used, go to Windows Start > Programs > V-Ray for 3ds Max > Select rendering devices for V-Ray GPU for 3ds Max #### of each render slave machine and pick. By default, the render slave machine will use all its graphic cards in CUDA DR rendering, if nothing was specified beforehand.