Some objects are displaced after tranforming position of other object

Questions
,
1

As below, from frame1 to frame2 I’m animating three lines to meet at (0,0,0) (not exactly (0,0,0), just
optical illusion to the viewer, because I don’t know how to animate them to (0,0,0) but that will be on another topic )
And then when I animate to frame3, which I was just moving the box position.x, that 3 filled lines are displaced.
What’s posibly causing this?
My camera setting:

<PerspectiveCamera ref={persRef} makeDefault={flag} position={[0, 0, 10]} fov={45} />

Thanks a bunch!
frame 1 :

1676521691219
16765216912191328×759 39.5 KB

frame 2:

1676521704557
16765217045571329×765 38.8 KB

frame 3:

1676521724752
16765217247521330×767 34.8 KB

2

I’m sure I do not understand the question. I get the following situation:

  • there are lines that look as if they are connected
  • when the camera is moved, the lines are not connected anymore

image
image949×355 4.09 KB

If this is the case, this is called parallax. To keep lines connected, they must have a common point. In this way they will stay connected from any point of view.

But I think that you ask something else.