CODEWITHSUNDEEP
c#unity-game-enginevectorquaternions
nmw01223
nmw01223

Reputation: 1723

Unity - converting a Quaternion to a Vector3

I've seen quite a lot of questions like this, and the trouble is - the question makes no sense. They are not the same thing, it is a bit like saying "how do I convert an apple into a brick"?

But usually the underlying question does make sense, it is the wording that is suspect.

What I want to do is this:

Now, I think the answer is

    Vector3 ans = R * Vector3.forward;

Is this right, and if so, why? (If not right, then what is the answer?)

Upvotes: 5

Views: 16983

Answers (1)

derHugo
derHugo

Reputation: 90580

Yes that is correct.

Quaternion * Vector3 takes a given vector and rotates it according to the given rotation.

So if your R is basically the object's world-space transform.rotation then the result will be the objects local forward (positive Z) vector as a vector in world space coordinates.

You can also directly use the object's transform.forward vector which basically equals transform.rotation * Vector3.forward

Upvotes: 9

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