Hey all,
so I'm currently working on several shots with CG cars, and since some of them are driving on gravel roads, I thought this would lend itself quite ideally to using the RBD Car Rig in earnest. However, I'm struggling with the path following. Especially with the way the speed is being calculated. In the attached image, you can see that the path is perfectly straight with only the slightest changes in elevation, however, the car just crawls along for the first bit, then all of a sudden it goes like the clappers until it loses control by overbreaking towards the end. I've tried diving into the SOP, but I couldn't make heads or tails from that spider web of cross-dependencies and invoke nodes that do some kind of black magic. The scene is set up in 20.5.370, I've tried newer releases, too, but to no avail. I would be really grateful for any and all help on the topic because I'm quite stumped.

Thanks and cheers!

20.5.672 has a fix for the RBD Car Follow Path SOP which could incorrectly calculate the max speed along the curve when segments are perfectly linear. It also improves oscillations when the vehicle lags behind the target.

npetit
20.5.672 has a fix

That's an upcoming one, I guess, since the current daily is .669? Alright, I'll give it a try with your recommended version and hopefully that'll solve the problem. Thanks!

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