The project itself can be downloaded from here.The main objective of this post is to give an idea of how to work with wheel collider and physics of Wheel Collider. How is Wheel Collider Different than other Colliders? What are the components of Wheel Collider? #Wheels colliders unity 2019 how to# You'll know everything about Wheelcollider after reading this post. Wheel Collider is a special kind of Collider which is used for vehicles. It has in built collision detection technique and physics of actual Wheel. Is there is anything special which is not in other Colliders? It can be used for objects other than wheels (like bumper Boats, bumper cars etc which uses suspension force ), but it is specially designed for vehicles with wheels. Yes, each and every collider has something special (That’s why Unity created them). No problem, I will explain components here.īefore that, it's very important to understand how the Wheel Collider component works internally, to get a car working in Unity In this Collider, you will get all the components which are used to make vehicle drivable. So Unity looks at your car like this.Ĥ wheels colliders and 1 car collider, that’s it! This is how you look at your dashing and shiny car.īut, Unity doesn’t have good eyesight. Now Let’s Discover inside Wheel Collider. Wheel doesn’t have any shape it is Raycast based. Mass & Radius: mass and radius of the wheel. (Easy isn’t it ?)īelow I had given a little introduction about physics of wheel collider.Įvery Wheel counts it’s sprung mass. Sprung mass (not weight) is used to apply individual force on each wheel. Suspension Distance is the distance between max droop and max compression. Suspension Force(F) = (sprungMass * g ) +( jounce * stiffness) - (damper * jounceSpeed) jounce -> This suspension is calculated based on rest pose. Offset of the wheel relative to the rest pose. (setting this to 0 means no friction change this runtime to simulate in various ground material). Wheel moved with suspension travel direction. Tire simulation rather than using dynamic or static material slip-based material is used. To learn more about physics of wheel collider click hereįirst we need to setup Scene for that ( Don’t Worry that is Easy part). Step 1: Create a 3D plane Object give it scale of (100, 0, 100). Step 2: Create an empty Object add Rigidbody 3D. Step 3: Import 3D Car Model inside your Scene (you will get download link below) add as a child of Car.
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