[JPMays]

I know people have trouble with this all the time, but I can't seem to figure out what I'm doing wrong, and a search turns up no help. I have a simple galvanized steel material:



and I'd like to make a grate out of it, using this clip map:



I have applied it to the weight, but nothing happens. It is a .png, with pure 0, 255 values.

[JPMays]

I think I figured out the problem. I had applied the clip map to the BSDF, not the Layer. Seems to be working now.