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Question by blitzen · May 06, 2015 at 11:35 AM · unity 5bugwheel collider

Wheel Colliders Insane in 5.0.1

After buying Pro, upgrading to 5.0.1 and spending over five hours narrowing it down, aside from issues mentioned in other posts on the topic, wheel colliders attached to a car object are now completely broken. For both my own application and in the car tutorial, each is now:

  1. Drawn incorrectly, at a distance from its local origin inversely proportional to the parent transform's scale, e.g. if the parent transform is set to a scale of 0.1, its green circle gizmo is drawn ten times further from the parent transform's origin than the wheel collider's object's actual position.

  2. Physically out of whack. By default, the instant it hits the terrain the whole car now flies up and to the side at about a thousand miles per hour. Even after I turn its default Spring (35000) and Damper (4500) down to one or two, it still gets slammed downwards.

Are these expected to be resolved in the next release? My, what a sweeping improvement of Unity's development pipeline it would be to add a "unit test" step at some point before release.

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avatar image blitzen · Jul 12, 2015 at 04:47 AM 0
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This problem still remains as of 5.1.1f1. Any news on a fix?

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Answer by RLin · May 06, 2015 at 10:35 PM

Your rigidbody's mass has to be a realistic value. Try setting it to 1500 kg. As for the gizmo's incorrect position, this could be due to a model scale that is not 1*1*1.

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avatar image blitzen · Jul 12, 2015 at 05:42 AM 0
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Thanks for the suggestion, but tweaks to neither the rigidbody's mass nor the wheel collider's mass or dampening seem to have any effect.

avatar image RLin · Jul 12, 2015 at 12:29 PM 0
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Could you post a picture of your wheelcollider values, rigidbody values, and maybe your vehicle?

avatar image Mehrdad995 · Jul 12, 2015 at 01:50 PM 0
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please send a picture of your car rig and what is the scale of wheel colliders parents?(all of its parents in hierarchy)

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