DOShakeRotation not working on Z axis with randomness = 0

[Trisibo]

It seems that DOShakeRotation is not working on the Z axis when setting the parameter strength to a Vector3 and randomness to 0. This is an example that isn't working:

transform.DOShakeRotation(1, new Vector3(0, 0, 90), randomness:0).SetLoops(-1);

However, any of these work:

transform.DOShakeRotation(1, new Vector3(0, 0, 90), randomness:90).SetLoops(-1);
transform.DOShakeRotation(1, new Vector3(0, 90, 0), randomness:0).SetLoops(-1);

DoTween version: 1.1.555, Unity version: 5.5.0f3 (64bit)

[Trisibo]

Actually, when setting strength to a float, it also doesn't affect the Z axis, only X and Y, for example:

transform.DOShakeRotation(1, 90, randomness:0).SetLoops(-1);

[vietdungdev]

up

[jmp909]

I'm also confused by this. I have a 2D bottle I want to shake (strength = Vector3(0, 0 , shakeAmount)), but I'm not sure this function is really designed for this.

applying a randomness value seems to cause jumps in the animation (rather than modifying the /end position etc for each shake), and setting a 0 value causes it to do nothing.

essentially I am trying to shake the bottle between eg -30 and 30 degrees, with a slight randomness so it has some variation.

any advice welcome thanks

[JokerDen]

Same problem here

[oxysoft]

I just wasted the last hour debugging random stuff only to find out that the Z axis on DOShakePosition does jackshit! X and Y work perfectly, but Z is busted, since it only works if you modify the randomness. I don't really want randomness on my shake... @Demigiant this needs fixing.

[Demigiant]

Sorry guys for the late reply, but I think there's some confusion on what shake means. Shake is a rather complex thing, but it's mostly based on randomness (even if there's a randomness parameter), contrary to punch which has a linear decay. Shaking on a single axis requires the randomness value to be set to 90, as the docs say, and I admit it's not a really nice effect because Shake is more a 3D (or at least 2.5D) effect. If you want to shake on a single axis without any randomness then you're looking for a punch, not a shake, and thus DOPunchRotation.

[Trisibo]

@Demigiant If this is how the effect is suppossed to work, it's highly confusing, are you sure there's not a bug? For example:

transform.DOShakeRotation(1, new Vector3(0, 0, 50), randomness:0).SetLoops(-1);  // This doesn't make the object rotate, as indicated
transform.DOShakeRotation(1, new Vector3(0, 50, 0), randomness:0).SetLoops(-1);  // This makes the object rotate on the Y axis, even with "randomness" being 0
transform.DOShakeRotation(1, 50, randomness:0).SetLoops(-1);                     // This makes the object rotate on the X and Y axes, but not Z

Shouldn't the second line not make the object rotate since the randomness is 0, like the first line? And shouldn't the third line make the object rotate on Z (the randomness is 0, but we are not rotating on a single axis)? You mention it being a 2.5D effect, which I guess may be a clue, but I still don't really get what is going on. Why not Z?

[LovorDev]

Some strange solution of this

DOTween.Shake(() => transform.rotation.eulerAngles, x =>
            {
                var rotation = transform.rotation;
                rotation.eulerAngles = Vector3.forward * x.x;
                transform.rotation = rotation;
            }, 1, 10, 8, 0);

[p1gd0g]

same here

[thanhntsmg]

Some strange solution of this

DOTween.Shake(() => transform.rotation.eulerAngles, x =>
            {
                var rotation = transform.rotation;
                rotation.eulerAngles = Vector3.forward * x.x;
                transform.rotation = rotation;
            }, 1, 10, 8, 0);

Problem solved, amazing!

[zongo811]

I was confused at first to, because I misinterpreted the documentation. For a simple ShakeRotation around the Z axis that takes 1 second and rotates by max 45° use:

transform.DOShakeRotation(1, Vector3.forward * 45);

If you use a Vector3 as a parameter, you don't give a direction but a Vector3 of strenghts for each axis. So Vector3(0, 0, 45) means: Rotate max 0 degrees around X, max 0 degrees around Y and max 45 degrees around Z,

If you use float as a parameter, this value is used for all axes.

Works well. DOTween is great, thank you for making it.