Fps Arms

Can anyone tell me how they did the fps Arms in the first person perspective , like it not intersecting other world geometry and still recieving shadows ,can anyone make a tutorial for that please?

 

On asset store it's sold as the fps view ,so I am pretty interested in how it is implemented over her

 

I can't speak for this project, but other FPS packages will render the arms on a separate camera and use a mask to deal with clipping.

 

On this project they scaled the fps arms and weapons down so they are fairly small and therefore not intersecting with the world but still receive correct light and shadows.
They then add a special material to them with a FOV setting set to 40 to render the fps stuff at the correct size without having to use a second camera to render them.
The extra FOV setting at 40 will them scale the arms and weapons up again to match the normal 60 FOV output.