I've been trying for a while to crack the ANCS format for Metroid Prime, it contains scenegraph information for models, such as it's skeleton (CINF), skinning(CSKR) and animations (ANIM), and I have it mostly figured out, however there is one section that I can't seem to figure out. It's the PAS4 section, it seems to define particles and I can see a definite pattern, however I can't seem to make the pattern fit the header.
I've attached a few examples of ANCS with PAS4.
Any help would be appreciated.

As you can see, there is a definite pattern, but I can never make it work for some reason.
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