Create a new Actor Blueprint and add a Get Actor Of Class
node in the Event Graph
connected to the Event Tick
node. Select TouchDesignerConnectionActor
as the Actor Class
.
Start dragging from the Return Value
into the empty space around it and select Received Values
from the list of possible nodes that pops up. Now you have the list containing all values (indexed by the channel names in TD) sent from TouchDesigner.
With a Find
node you can get the value you want out of this list. You can use that value (of type float = number) to control other properties.