Hi all,
I’m having problems with this sm5 error. Its based on a mastermaterial from Ryan Manning. Does anybody have some advice what I could check. Thanks in advanced. Decorix
The pins for input at the function NormalStrength are inverted on both usages.
Nilson is correct, the “Base Normal” should be your texture input and the “Normal Strength” should be your 1 vector. Just swap the pins on both “Normal Strength” functions.
Thank you both. Did you mean like this? Or in the function itself? the sm5 error is gone. Just want to be sure 
That is correct now. If you notice, near each material function input pin’s name there something written between parenthesis and their meanings are:
(S) scalar
(V3) vector 3
so, that error will always happen when you try to connect to a pin which native sizes/types do not match. There are other meanings that you can check into UE documentation