Hello!

This Full HD video is showing how to use Swap Integer/Scalar/Color/Vector/Material nodes.

https://www.youtube.com/watch?v=hw_VK2_l9bw

It's using TrueArt's Node Library
http://www.trueart.eu

If Trigger is 0, Output 1 is equal to Input 1,
and Output 2 is equal to Input 2.

If Trigger is not 0, Output 1 is equal to Input 2,
and Output 2 is equal to Input 1.

Best Regards!