Rotation of child object on X axis breaks rotation of parent object on Z axis

Unity Engine
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1

As shown below, rotation on Z (by 55) axis for “Camera Flat Rotation” propagates into “Main Camera” and perfectly counteracts applied rotation (by -55).
(“cameraFlatRotationBody” is an empty game object and a parent of main camera)

1
1695×170 26.4 KB

2
21910×588 141 KB

3
31910×588 164 KB

Disabling child rotation fixes the issue:
4
4695×170 26.3 KB

5
51910×588 145 KB

6
61910×588 168 KB

The goal is to implement standard camera movements for a strategy game:

  • “left-right” rotations are global and always in parallel to terrain plain
  • “up-down” are local and result to over the head rotations.

I’ll probably have to implement this via transform.Rotate(0, 0, zRotation, Space.World) and transform.Rotate(xRotation, 0, 0, Space.Self)… BUT, why exactly solution above isn’t working. Am I missing something?

Edit: Solved this problem on my own, code above didn’t work because I tried to override rotation twice. Final solution is:

            transform.RotateAround(target, Vector3.up, dx * cameraRotationSpeed * Time.deltaTime);
            transform.RotateAround(target, transform.right, dy * cameraRotationSpeed * Time.deltaTime);