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Issues with a tire rotation

Anonymous

Issues with a tire rotation

Anonymous
Not applicable

So I am animation a car going down a drag strip but am having an issue were the tires spin forward a bit then backwards then forward again. I have the tires rotating on the X axis and the number in the attribute editor is increasing constantly so I am at a loss as to why this is occurring, Do i need to put a reverse node on my control for the tires to correct this or is there something else? 

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mspeer
Consultant
Consultant

Hi!

Are you sure this is not only a visual effect?

https://en.wikipedia.org/wiki/Wagon-wheel_effect

 

Please upload the scene-file for further help.

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Anonymous
Not applicable

I am not sure because I have the same model but going around a curve and the effect is not seen. But here is a play blat of the car on the drag strip. I have the play blast at only a 50 quality so the file doesn't take forever to upload. 

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mspeer
Consultant
Consultant

Hi!

 

There is a reason why i asked for the scene-file, because there is absolute no way to tell for sure how an object rotates by watching a movie (without motion blur)

If an arrow points to the top on frame 1 and to the right in frame 2 in which direction does it rotate?

Even if you would know it rotates to the right you still do not know if it would be 90 degree or 450 degree or even more.

 

Based on what i see when the car accelerates this is only a visual effect and the wheel rotates correct.

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Anonymous
Not applicable

Sorry I misread the reply. Here is the scene file. I had to delete a few items in the scene to make the file small enough to make sure I could upload it.

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mspeer
Consultant
Consultant

Hi!

 

I checked the scene and it's all correct, the wheels rotate only in one direction.

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