Angling camera in F5 allows you to x-ray through snow layers

By angling the camera in certain directions while in F5, the player can "x-ray" through snow layers and see underground.

What I expected to happen was...:
The snow would stop my camera while in F5

What actually happened was...:
I was able to see through the snow underground while in F5 mode when angling my camera downwards.

Steps to Reproduce:
1. Find an area with snow layers, or place snow layers on an open area
2. Press F5
3. Angle camera into the snow layers while in F5