I don't see a noise-val function in the API, I do see a noise function, and a corresponding noise-seed function, so it seems if you want to see the RNG for noise you should use noise-seed, not random-seed

Looking at processing PApplet it contains two instances of java.util.Random, internalRandom and perlinRandom. The latter is used to generate the noise, so you have to make sure you're seeding the right one.

Ah, thank you, @plexus!