title: Three JS - How to cut a 3D object with Y plane?
body: <p>Is it possible, with Three JS, to cut a mesh or an object with a plane (mostly with Y axis) that we can move ?
  I want the same functionality that display in this picture :</p>
  
  <p><img src="https://i.stack.imgur.com/gHe0o.jpg" alt="Y plane with 3D object"></p>
  
  <p>The goal is to keep the mesh intact to allow for the user moving the plane and see the mesh in function of the Y plane.</p>