Why does an object shake in OpenGL?

Question

Java

The object in my program moves according to the formula y = d * Math.cos(alpha); x = d * Math.sin(alpha);(where x is the distance from the center and alpha is the angle of rotation). The camera is following this object:

Camera.setPosition(new Vector3d(-object.getPosition().getX(), 0, -object.getPosition().getZ() + (7000.0 / 100000)));

All coordinates are considered in double, but at the same time, when approaching the object itself, the camera starts to shake (or the object, I can’t understand exactly). How to remove the inaccuracy in the coordinates from which everything is shaking.

Answer 1

Does the Camera class use perspective?
It is possible that incorrect calculations occur all the time, but they become noticeable only when approaching (more noticeable) or with active movements at a distance (which will not be easy to notice with continuous movement).