/vr/ - Retro Games

>>3461457
Usually for sprite rotations the game uses:

the first 4 letters as the id for the sprite
the fifth letter to denote the frame of animation
(for player skins A,B,C,D for walking, E,F for firing, G for pain, H-W for death and gib)
and then a number for the rotation.

Usually for non-death sprites you have a full set for each frame like
PRGIA1
PRGIA2A8
PRGIA3A7
PRGIA4A6
PRGIA5
which are five sprites for facing south, southwest, west, northwest, and north, with simple mirroring done to get the east-facing rotations.

If the number is 0, that sprite is displayed regardless of what direction you view the sprite, usually used for death animations.

So what I think is happening is you accidentally added or mislabeled a sprite such that there is both rotated sprites as well as one that's designated to be displayed from all directions for that frame, like

SPIDJ5
...
SPIDJ0

I peeked into doom2.wad and found that SPIDJ is a death frame so you probably have mislabeled something somewhere, there should only be one entry in the "J" series and that should be SPIDJ0.