Unity - Rotate Game Object on Swipe / drag gesture regards the camera pan / rotation

Question

So I have tried many script found online and also try to tweak free asset like lean touch in unity.

But I could not find the best fit for my project.

What I want to achieve is ability to rotate a game object in all axis (x, y, z) regarding the camera position / rotation.

The camera will always focus on the game object and rotate around the game object.

So whenever the camera rotate on specific angle I would like to detect that any drag / swipe gesture (x swipe, or y swipe) on screen will rotate the game object on the specific axis (x, y, z) that Perpendicular to the swipe / drag gesture.

Please advice Thanks

Answer 1

All you need to do for this is using your cameras orientation and do e.g.

void Update()
{
    if(Input.touchCount == 1)
    {
        var touch = Input.GetTouch(0);
        targetTransform.Rotate(cameraTransform.right * touch.deltaPosition.x * multiplier, Space.World);
        targetTransform.Rotate(cameraTransform.up * touch.deltaPosition.y * multiplier, Space.World);
    }
}

---

Update

As you said you actually only want one axis so the one with the bigger swipe movement you could so something like e.g.

if(touch.deltaPosition.x > touch.deltaPosition.y)
{ 
    targetTransform.Rotate(cameraTransform.right * touch.deltaPosition.x * multiplier, Space.World); 
} 
else 
{
     targetTransform.Rotate(cameraTransform.up * touch.deltaPosition.y * multiplier, Space.World); 
}