Live Link Curve Debugger

Using the Live Link Curve Debugger, you can quickly see what the output is of various Live Link curves are in an easy to debug manner.

When streaming content into Unreal Engine using the Live Link Plugin, you may want to view the various curves and values that are active. The Live Link Curve Debugger is a tool that enables you to quickly see what the output is of various Live Link curves are in an easy to debug manner. 

Enabling Live Link Curve Debugger

In order to use the Live Link Curve Debugger, you will first need to enable it from the Plugins menu:

  1. From the Edit menu, select Plugins


  2. In the Plugins menu under Animation, enable both Live Link and Live Link Curve Debug UI options, and restart the Editor. 


  3. From the Window option, under Developer Tools, select Live Link Curve Debugger


    The Live Link Curve Debugger window will open. 


Using Live Link Curve Debugger

Once connected to Maya with Live Link or Motion Builder with Live Link, the content you have in your application will be accessible within Unreal Engine, include any animation curves. With the Live Link Curve Debugger, you can see a list of all the curves and curve values for the currently selected Subject Name which you can define by clicking the Live Link Subject Name drop-down menu and selecting your Subject. 


Once you select a Subject, any curves will be displayed in the window along with their values. 

Click image for full view.

If you haven't specified a Subject Name, as soon as one connects with some curves, the debugger will switch to that one. You can change this selection by clicking the Live Link Subject Name drop-down (in Editor or a Desktop build) or by typing LiveLinkDebugger Next in the command-line to cycle through different subject names (on other client builds)

Inside a client you can also use the command-line to show the Live Link Debugger with the command: LiveLinkDebugger Show

Optionally you may specify a Live Link Subject Name to start with in the command-line by using the command LiveLinkDebugger Show SubjectName (the name of your Subject).

This page was written for a previous version of Unreal Engine and has not been updated for the current Unreal Engine 5.0 release.
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