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  • Try using the latest versions of Phoenix and V-Ray.
  • Confirm that the version numbers are the same on all DR machines.
  • Make sure the simulation caches are shared on a network location that all the machines can see. Note: They all must have permissions to access this network folder. For more details, see Distributed Rendering of Fluid Caches for Phoenix below.
  • Confirm that your V-Ray Spawner is started as an administrator on the remote machines. For more details, see Mapped Drives and UNC Paths for Texture Maps and Other Rendering Assets below.
  • Make sure your V-Ray Spawner is run as the same account as the one you are testing the permissions with. Your local account might be able to see the shared network folder but the spawner might be started with a different user account which doesn't have proper permissions.

 

 

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Distributed Rendering of Fluid Caches for Phoenix

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A common problem when setting up DR is that by default Phoenix looks for the cache files in the same directory as the scene file using the $(work_path) keyword. However, at the start of a network render, the scene file is copied to all render machines on the network to a new location (e.g. C:\Users\user\AppData\Local\backburner\Jobs\) while the cache files are not automatically sent to the host machine(s). They are not sent because they may be really huge and may overload the network and the disk space of the host, and would take too much time to transfer, negating the proficiency of DR. This is why when rendering begins, if the hosts are looking for the cache files in the same directory where the scene file is, the cache files won't be found.

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Mapped Drives and UNC Paths for Texture Maps and Other Rendering Assets

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If you are using mapped drives or UNC paths for your scene assets, you should set up a "Log On" account for the V-Ray spawner service, otherwise, the textures or any other external assets won't be accessible. To set up the Log On account, open the Services applet from the Control panel (Control panel > Administrative Tools > Services) and find find "VRayMayaSpawner 20nn" then right-click to expand the drop-down menu and choose Properties. Go to the  the Log On tab and instead of the default Log on as local system account choose This account and put the name of an account that has adequate privileges on the machine and access to the shared resources over the network.

Alternatively, you can use the automatic asset transfer mechanism of V-Ray as described above to send the required assets from the client machine to the render servers.

 

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