[QUOTE=peabody;1489374]How did you determine it is connected to a "water interaction" node?
I did not
I found the Water Surface Transition Controller in the particles nodes, it says that when the sub goes below the surface, = depth<0, it starts the particles.
I then tried to link my AA gun animation to that WST controller, and the controller to the A01 node in turn, hoping it would start the animation when I submerge. it did not.
The animation for the dive planes comes from the subs.sim file. Well that is where the dive plane is defined, where the actual animation comes from I do not know.
me neither and it bugs me ! maybe grrr hardcoded grrr ?
Do this:
I will try it
On your Jyunsen B.sim file go to Unit_Submarine and on the Rear_Diveplane replace the diveplane with
[0]= Japan_FLG.
Now save it and copy to the mods folder, enable it, start a quick mission with the sub on the surface. Your flag will be on the 'wrong' side of the pole.
ok
Now without moving the sub just select a depth so the sub will dive and you can watch the flag animate the same way the Diveplane would have.

I don't know if the animation is hardcoded or comes from another file, but as far as the sub is concerned it comes from the .sim file. Where the .sim file gets the information I don't know.
ok I'll look some more unless someone here knows...
Now of course you can go back and change it back the Rear Diveplanes.
keltos
Peabody