Question Simple example using Triplanar

Attempting to use a Triplanar node in a graph utilizing webcam input.

Is it simply a matter of replacing the existing UV node?
Other than stipulating use in Fragment shader stage the documentation doesn't help. https://docs.unity3d.com/Packages/com.unity.shadergraph@10.3/manual/Triplanar-Node.html

 

Triplanar node already sample texture, so no longer need sample texture 2D node anymore.