Camera Advice (Total beginner)


I’m Ray and a total beginner when it comes to game development so i’m seeking some advice about how to set up camera in one specific way.
The Design i’m aiming at is what is being used in Luigi’s mansion where the camera follows you around while trying to keep you in the center of the vision but also when you are entering a room or exiting it loads or deload the room. Another question regarding when camera get’s close to the wall it looks like it doesn’t go through it but instead makes the wall which the camera is passing by turns into transparent. I’m not asking for exact code or anything other than simply point me into the right direction so i can understand this issue or similar issues in the future.Thanks for the tips in advance.

This is a ‘WHOLE THING’… But to get you going, making objects between camera and player transparent: