Blender - "Normal map strength" node group

Description: Node group allows to control strength of normal map texture before you plugin it to standard "Normal map" node.

Perhaps you want to ask why you need it if "Normal map" node already has intensity slider?

Well... sometimes there are cases where you need to combine 2 or more normal maps. When they are combined you may see that some normal map textures weaker than the others and you come to the conclusion that you need to add/reduce intensity to texture before you plug it in "Normal map" node because it controls only overall intensity.

Ways to add node group:
1. Append/Link node from this blend file to your project file
2. Place this blend file in your "Asset Library" directory