RealGaze you mean? I didn't look at it before, but you're right there's a lot in common. This, Life and a lot of other _excellent_ eye motion plugins are driven by the player and attempt to "give life" to the model. If I had to give an area where Glance makes sense, it's for mocap and animations.
Glance will look back in mirrors, track the player's separate eyes and mouth, allow driving weights to potential look targets to help create a personality, can look at other people and themselves, you can tweak the field of view, it has predictive eye movement based on head rotation, etc. I don't think mine is necessarily _better_, but it was built to do something I couldn't have with existing solutions.
This is where I realized I needed to make my own, it looked fine but it didn't look as realistic as I'd like:
Initially, the model was looking at specific objects based on the closest one in the field of view, not the player, based on head direction. I needed the eyes to behave in a realistic way based on my
mocap and animations. For example when I turn my head around, I want the eyes to look where I'm going. Another example is if the model looks in your eyes, and they're excited, they'll have quick looks at your mouths, potentially your hands if you move them in front of the model.
Hopefully that helps clarify what it's for
