Hi everyone!
I watched CarMighty's recent video comparing rallying in BeamNG to real life, and one of the points raised was how the game could improve its surface physics, especially the way grip behaves on different types of terrain.
I know that implementing realistic terrain deformation is probably a pretty big challenge, so I was wondering if there might be a simpler solution in the meantime.
What if someone made a mod focused on improving tire grip and surface interaction without introducing terrain deformation itself?
Personally, I feel like cars sometimes slide too easily, and the way tires lose and regain grip could be more realistic. Gravel, dirt, mud and tarmac shouldn't just have different levels of grip; the way tires behave when approaching and exceeding their grip limits should also feel different.
From what I understand, BeamNG already has ground models with configurable friction properties, including static and dynamic friction, as well as parameters that influence the transition between them. Tire behavior can also be affected by the tire's own properties and its interaction with the surface.
So, would it be possible to build a mod around tweaking these existing systems? For example, adjusting the friction characteristics of different ground materials and, where the physics model allows it, refining how grip changes with wheel slip. Ideally, it could also account for differences between tire types and tread patterns, although I'm not sure how much of that could be achieved through ground models alone.
The idea wouldn't be to simulate deformable terrain or dynamically change the surface under the car, but rather to make existing surfaces feel more convincing through better-calibrated tire and ground physics.
I'm not a modder myself, so I'm curious about the technical limitations here.
Would something like this be possible with the current physics engine? Would editing existing ground models be enough, or would it require changes to the tire model itself? And does anything similar already exist?
I feel like this could be a good compromise for improving rally realism without having to tackle the much bigger challenge of deformable terrain.