Console Variable node allows to use and animate console variables in your Track View sequence. Console variables are useful commands that allow you to tweak many aspects of the engine and game code.
Example: In this shot, the console variable r_SonarVision is animated in Track View.
You can use and animate any available console variable by using this node in a Track View sequence.
To add a Console Variable node:
A Dialog Box pops up where you can enter the Console Variable Name.
You can get all the list of Console Variables available by Right-clicking in the Console window in the Editor.
If you hover your cursor over a specific command, you also get a Tooltip that gives you the values the variable can use.
You can also find a specific console variable by doing a string search.
Many console variables cannot have a spline animation curve as they strictly use specific values (only 0,1,2 or 3 and not float values).
In this case, it is ideal to use a Set In Tangent to Step for all the key frames in the Track View Curve Editor.
Example: The key frames for the console variable r_SonarVision curve are all set in tangent to step.