Can't Displace With SSS?

[jate]

For some reason, my subsurface scattering goes away when I add a displacement map.

I've tried adding it directly to the same texture, as well as throwing the texture into a mix, and displacing that (with the same result). I went so far as to crank SSS density up to 100 just to make sure, and it looks the same.

SSS without displacement:



SSS not showing now with displacement enabled:



Thanks!

[jate]

Posted too soon (unless you searched this and had the same problem)!

My index was set to 1.4, and since there's no need for that in SSS (as far as I know - definitely not for a paper texture), setting it to 1 fixed it right up.