I’ve been trying to make vehicles from scratch and decidet to use Chaos vehicles. The problem is that they don’t react to physics.(yes simulate physica and enable gravity are turned on) When I start simulate play mode and try to move them they just weirdly lean and rotate very slowly. I rewatched many tutorials and don’t know what did I do wrong. If anyone could give any tips I’d be grateful.
Hello @redendermansk1 ,
Nice that you want to build a vehicle from scratch, but if I’m not mistaken, from what I’ve found out, Chaos Vehicles in Unreal Engine 4.27 were still in an experimental stage and never became truly stable in that version. The system was included as a preview of the new Chaos physics engine, but at that time it hadn’t fully replaced PhysX yet. That’s why many features,like suspension, friction, and force response,weren’t properly tuned. This explains why vehicles behave oddly: they lean too much, turn slowly, or don’t react to gravity as expected. Essentially, the system’s foundation wasn’t finished, making it hard to achieve convincing physics even with “Simulate Physics” and “Enable Gravity” enabled.
I recommend using the official Epic guide
which explains step by step how to set up a vehicle. It’s a solid foundation for understanding how the main components work and how to fine-tune the vehicle’s physics.
In addition, you can use the “Vehicle” or “Vehicle Advanced” templates that come with the editor. Both are well put together and serve as practical references for analyzing how a functional vehicle is structured.
I’m also leaving you these videos that might be useful as additional references.
Entering and driving vehicles
How to implement physxvehicles plugin
For this last video, keep in mind that you have to enable the PhysX Vehicles plugin.
With all this, you should be able to create your own vehicle from scratch without any trouble. And if you run into any questions along the way, don’t hesitate to ask again in the forum!
Hope it helps!
Thank you for the advice
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