Phheeeeeeeeew, finally I’ve found the problem!
Ok, so I debugged through every value of every line of code of the original as well as the newest one, and the problem was simply this line in the newer version:
float MinZ = 3.0f;
This line defines the near clipping plane. I changed this to 5 and now everything is perfectly fine.
Again, , thanks a million for sharing your code. It is much appreciated!