PIDs and IVs in the fifth generation

[The Golux]

Alright, I hope this isn't overasked, but...

I know the relationship between IVs, Natures, and PID as it was in the fourth gen doesn't apply to fifth gen, and I know that Nature was decoupled entirely, but I'm curious as to whether there is still any kind of known/predictable relationship between PID and IVs. I think I'd heard that there isn't, but people here with more experience than me might have further information that I don't know.

[OmegaDonut]

PID\nature and IVs only to a certain extent for Wondercards without a set nature. No relationship for anything else.

[The Golux]

Really? That's kind of impressive. Are they determined by different RNG results?

[Kaphotics]

Yes. The game uses two different RNGs to determine PIDs and IVs for everything but wondercards.

The IVs are set by a 32 bit Mersenne Twister; the rest is determined by the "PIDRNG", which is a 64 bit Linear Congruential RNG.

[The Golux]

I see. Is there a link to what's known about the results for the wondercards without set nature?

[Kaphotics]

The relationship isn't traceable, so essentially it's random for generating purposes.

the game takes the top 5 bits from consecutive random numbers and then does the PID.

smogon research psot