help with this normal map - red dashed line

[emartin8907]

having some trouble with this normal map 
https://drive.google.com/file/d/1Id1ApC5sxir5XmqKGVpj-qEd-Dl978-k/view?usp=sharing
can someone help me figure out what i need to do to plug it into my normal node?  

[davescm · Accepted solution]

The normal node is expecting a grayscale input

Dave

[emartin8907]

ah cool, thank you so much!  i think i would like to keep it in color.. but i want to control the intensity of the different channels - beyond just simply inverting, what would you recommend for that?  

[emartin8907]

nvm looks like RGBA split and merge will work for that.  thanks again

[davescm]

A levels or curve node also gives you individual channel adjustment. You would need to split if you want to, for example, blend each channel with another input separately though.

Dave