Offhand weps animation
Some off hand weapons do have animations. If you are doing your base attack, it will depend on what skill sets and/or weapons you use. My Mesmer uses sword/pistol. The main attack only has to do with the sword, so unless I actually activate one of the pistol skills, it won’t animate. I think that seems reasonable.
And what about dual sword? Dual mace? Dual axe? Or a mix of them?
On dual axe, you use more of the secondary skills so you have more animations. A lot of the skill includes both weapons to be used in the animation. Dual swords, same thing. In both sword/sword and axe/axe, the first three main hand skills (usually use main hand on for the animation but both main and off hand to swirl aground an such.)
Whenever you get into the mixes….not so easy. But basically, it comes down to what does your off hand do with a certain weapon in your off hand and hat skills are use (what class)
In reality you don’t use 2 weapons at the same time if you want to be effective with either.