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Xpresso Car Wheel

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Diego Romero
Xpresso Car Wheel
on Aug 23, 2019 at 6:08:13 am

Hello! I need some help creating car wheels that rotate automatically (forward and backwards) when moving along a spline that I created on the X,Y and Z axis.

I have seen a million tutorials but they all either only calculate the speed from a single axis, don’t rotate backwards or are entire car rigs and I only need to start with one wheel for now.

Any help is appreciated!


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Corrado Carlevaro
Re: Xpresso Car Wheel
on Aug 23, 2019 at 10:58:21 am

You could get the length of the spline, calculate the circonference of the wheel, put an Align to Spline tag to the wheel and link (with Xpresso) the rotation value to the Position percentage of the Align tag.
(e.g. if the spline is 100 cm and the circonference is 10 cm you need 10 rotations)


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Diego Romero
Re: Xpresso Car Wheel
on Aug 23, 2019 at 2:10:29 pm

Thank you for your answer, but will it work when going backwards, and what if I want it to eventually stop following the spline and animate the position by hand?


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Corrado Carlevaro
Re: Xpresso Car Wheel
on Aug 24, 2019 at 4:44:15 pm

of course you can make it go backwards but then if you want to animate by hand it depends on..., well, the way you decide to animate it. If you use dynamics and connectors (the way you'd usually rig a car) the wheels are already spinning based on the friction with the ground


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Emir Bojorquez
Re: Xpresso Car Wheel
on Aug 23, 2019 at 4:17:07 pm

Probably this will help you to start
Use Xpresso and range Mapper

13653_wheeltest.c4d.zip

Hope that helps.

Good Luck

Imagination is the best tool...



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