the backpack obstructs your vision while swimming

[peow]

the backpack obstructs your vision while swimming

[tr7zw]

Hey there, dev of fpm here. In regards to fab52cc, that's not technically the correct fix. You added the mod as a compile dependency and then don't actually use it(FabricLoader.getInstance().isModLoaded("firstperson"); works without having it added). The firstperson mod can be toggled, and just because the player is in first person and gets rendered doesn't mean it's the mod doing it. Other mods like paperdoll and shaders do that too, so with the current fix the backpack would just vanish for them while swimming.
Three potential solutions:

• Just check for the torso invisible flag being set. While swimming just during the first person render call(so not shader/paperdoll etc) the torso is set to not render so it can't clip into the camera. This might be a decent and easy general workaround.
• I can look into adding the workarounds I added to the head for better mod support to the torso too. This would not only make the torso invisible, but also move it a few hundred blocks behind the camera. So during the

ModelPart modelPart = playerEntityModel.body;
modelPart.rotate(matrices);

Code the backpack also gets moved far away from where it would be visible.

• Since you did add the mod as a compile dependency, you could just check https://github.com/tr7zw/FirstPersonModel/blob/1.20.2/Shared/src/main/java/dev/tr7zw/firstperson/api/FirstPersonAPI.java#L42 the API + isSwimming() and that's it. Keep in mind that you need to isolate that code correctly so your mod doesn't crash when trying to check that flag while fpm isn't installed.