FRM Offsets Question

NullPointer

First time out of the vault
Hi everyone,

I was building an FRM file parser using the information available online, and noticed an issue with alignment of some sprites.

I understand that there's a frame-global offset defined in the header, and then the offset delta per frame. But some frames don't align properly. For example, look at the human vault male unarmed animations (east):

HMJMPSAA (Idle, East): Global offset is (-1, 5)
HMJMPSAL (Use, East): Global offset is (0, 0)

Same for other directions for above animations.

This means that when going from idle->use animation there's a very noticeable shift. I started up fallout 2 but I don't notice this in-game, so I must be missing something. Does anyone know what it is?

Thank you!

Edit: Issue seems to be caused by global offsets. Deltas between frames are fine.
 
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