Unity rotate object around local axis

Question

I am trying to rotate an object around it's local axis (In this case a humanoid index finger) with my custom editor.

public float amount;

void OnGUI() {
    amount = EditorGUILayout.Slider("Rotate Amount", amount, 0, 100);
    index1.transform.localEulerAngles = new Vector3(0, 0, amount);
}

The issue I am having is when I move the slider, the finger rotates down and forward so the tips of the fingers point outwards, when in theory they should point towards the elbow.

I think I am using the wrong type of transform here, so what should I do to use the right transform?

I think screenshots would be great here, including the axes of the object. It's hard to visualize which directions you mean. (You have tried x, y, and z, right?) — 31eee384
– 31eee384, Commented Sep 22, 2015 at 21:38

Gustav Bok · Accepted Answer · 2015-09-23 06:56:06Z

1

Try to use:

index1.transform.Rotate(new Vector3(0, 0, amount), Space.World);

or

index1.transform.Rotate(new Vector3(0, 0, amount), Space.Self);

Hope it solves your problem :)

answered Sep 23, 2015 at 6:56

Gustav Bok

315 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Gustav Bok Over a year ago

Tried the negated value, 0 to -100?

Get Off My Lawn Over a year ago

That will just rotate it the other way

ShawnFeatherly · Accepted Answer · 2017-12-20 21:53:21Z

0

There may be 2 parts to this:

Getting the current rotation of the object on the local z-axis, here's one way to do that. https://stackoverflow.com/a/47841408/228738
Using the current rotation value to find the amount of rotation to apply to the object.

code for step #2

var currentZEuler = zRotation(this.transform.rotation).eulerAngles.z;
var deltaZEuler = amount - deltaZEuler;
index1.transform.Rotate(0, 0, deltaZEuler, Space.Self);

edited Dec 20, 2017 at 21:53

answered Dec 20, 2017 at 21:45

ShawnFeatherly

2,66629 silver badges23 bronze badges

Collectives™ on Stack Overflow

Unity rotate object around local axis

2 Answers 2

2 Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

Comments

Linked

Related