Depth effects are exclusive to HitFilm Pro.
The depth effects can aid in creating the illusion of depth when blending 2D layers with 3D models or 3D effects. HitFilm also supports genuine 3D compositing, which allows you to place 3D layers precisely in all three dimensions. For situations where it is necessary to blend 2D and 3D layers, however, the depth effects can be quite useful. Each effect has its own page where you can find full details fo the effect and its controls.