Sorry for the subject title a bit dodgy and unclear.
I could not explain the effect differently!
YOu can download my blend file and PRESS “P”.
Use the keyboard up down left right to Move and the Mouse WHEEL UP and Mouse WHEEL DOWN to chnage the angle of view.
When you move the wheel the walls are moving strangely, it make me feel sick in 10 secondes, really!!!
ps: you can download my source file you will not have the textures as I did not pack it. (not enough space).