How make fuctionable helmet?

Hı guys. I want to design that helmet in the photo, but how i can model this glass opening and closing up ?

Photo Link: https://www.google.com/search?biw=1600&bih=789&tbm=isch&sa=1&ei=Tmk_XOuBOMnJsQH0t5PADA&q=swat+helmet&oq=swat+helmet&gs_l=img.3..0i19j0i7i30i19l9.4250.4761..4849...0.0..0.179.659.0j4…0…1…gws-wiz-img._w7oRL3BcPM#imgrc=X5uyjh2t1soncM:

What have you done so far?

nothing about it.That’s why im asking i just need create that function,i can do everything after that.

You need to start working on some basic 3D modeling tutorials, there’s many tutorials out there for that.

You can either make the whole thing a skeletal mesh and animate the opening/closing, or you can make them separate static meshes, with the pivot of the transparent part centred at the rotators, and then just change the local rotation of that mesh.

for first, then i have to create 2 parts glass and helmet, right?