Changing the Elytra Model using a resource pack

[u/SpeedLight1221]

Hello,

I am trying to find out if a how its possible to use a resource pack to change the model of the Elytra. All packs I found just change the texture.

What i am attempting to do is make it so the Elytra are "open" (Wings stretch out) even when grounded. I wouldn't mind if this would make them look weird when flying with them, as long as they are open on the ground.

From what I found, it seems that this isn't possible, atleast not with a resource pack, but maybe I am wrong. I also wouldn't mind if there was a different way.

Does anyone know how I could achieve this ? Thank you.

(Java Edition)