Q100106: How does Nuke licensing work?



This article explains how NUKE licensing works both in terms of what licenses are requested and how the license usage appears on a license server.


Different licenses for different modes of NUKE

Different NUKE modes require different licenses:

  • Nuke requires a nuke_i license

  • NukeX requires a nuke_i and a nukex_i license

  • NukeStudio requires a nuke_i, nukex_i and nukestudio_i licenses

  • NukeAssist requires a nukexassist_i license
  • Rendering a Nuke script from a terminal or command prompt requests a nuke_r license by default
    (Instructions on how to make a terminal render request a nuke_i license can be found here)


When you purchase Nuke, NukeX or NukeStudio you will get the appropriate licenses.  For example, if you buy 2 NukeX licenses you will receive 2 nuke_i and 2 nukex_i licenses.


Nuke Plugin Licensing

When you use a NUKE plug-in, e.g. CARA VR, you'll need both a license for NUKE and one for the plug-in. The type of license requested for the plug-in (interactive or render) will always match the type of license requested by NUKE.

  • Using CARA VR within NUKE requires both a nuke_i and a caravr_nuke_i
  • Rendering NUKE scripts with CARA VR nodes from a terminal or command prompt requires both nuke_r and caravr_nuke_r licenses.


How license usage appears on a floating license server

All of our RLM licenses are used on a one-per-host-machine basis. This means you can open multiple NUKE scripts on a workstation and only use a single nuke_i license.

When Nuke runs it actually makes two requests to the license server because both the executable and the internal DDImage library (which is used by NUKE nodes and internal plug-ins) check for a valid license.  Only one single license is checked out from the server but it is shared by both processes.

You can view your available licenses and check their usage using the RLM Webserver at http://serverName:4102 (where "serverName" is the hostname of your license server machine).

Please note that the License Usage page actually lists all of the processes that are using a license, so it can appear that one user/host has more than one license checked out.  The screenshot below shows the License Usage page when two NUKE sessions were running on the same machine - there are 4 processes sharing the same license.

You can see the total number of licenses in use by going to the RLM webserver and clicking on Status on the left hand side followed by the the "foundry" button beneath Server Status.  This page displays how many licenses are currently in use.  Here's a screenshot of the Server Status with the same two NUKE sessions running showing only one license is actually in use.

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