Author Topic: Rotate object problem  (Read 2471 times)


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Rotate object problem
« on: August 29, 2012, 09:32:06 AM »
I'm testing object rotation with PlayMaker.
It's very simple action.

Every button down,
1. get rotation value of object.
2. add 90 degree to y-angle.
3. set rotation value of object.

It works but sometimes it does not returns exact value.
Attached pic is about rotate from 0 degree of y-angle, rotate 90 degree and return to 0 degree.
So it should be 0 degree of y-angle but it's not. (not 0 but 7.629395E-06)
Why this happen?


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Re: Rotate object problem
« Reply #1 on: August 29, 2012, 04:25:29 PM »

 this is simply the float approximation of 0 in your case, 7.629395E-06 = 0.000007629395 so really it means 0

 You will find this in many cases, where you can't even check if two floats are equals like ints:

so, in short, this is not something wrong with Unity, not playmaker.

Now, it could be also that your gameObject is not exactly spot on in its rotation, or it could be a physics driven gameObject in which case these kind fo values are the norm.