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Question by Eco-Editor · Dec 03, 2019 at 12:10 PM · vector3velocityfloatmagnitudesquare

Why camera.velocity is not consistant?

Hello everybody,

I'm checking the camera.velocity on a VR camera. The camera moves based on players' head movement.

I want to get a single value from the vector3 which is the velocity. Debug.Log(mainCam.velocity.sqrMagnitude);

so I pass the Vector3.sqrMagnitude - which return the square length of this vector, HOWEVER, when my camera is idle, the value of the square length is not consistent and actually varies a lot:alt text - but when it is moving, it actually very consistent.

Can anybody explain this behavior?

velocty-behavior.png (30.4 kB)
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Answer by Casiell · Dec 03, 2019 at 03:10 PM

VR camera is hardly ever perfectly still. There will pretty much always be some minuscule movement, especially when headset is on users head.

Having said that, any value which ends in E-05 is basically equal to 0. It's a float, so you should never, ever expect exact values.

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