Physics Tab

These parameters allow for fine-tuning of the vehicle's physics behavior, affecting aspects like its grip on the road, stability, and overall handling characteristics.

Each tab has a Pin icon. A pinned tab is also shown at the bottom of the RBC Rig > Controls tab, so you can adjust it while driving.

Downward Force Tab

• Downward Force Pin: Pins tab to the Controls tab.
• Enable Downward Force: This button, when enabled, adds a downward force to the vehicle’s wheels. This is used to increase the vehicle's traction with the ground.
  • Strength: This parameter controls the intensity of the downward force applied to the wheels (0 to 1). A higher value increases the force, improving traction.
  • Automatic Forces: When enabled, the forces automatically adjust to vehicle dynamics such as turning and speed. Disable it to set Force Velocity and Force Max Impulse yourself.
  • Force Velocity: This parameter controls how quickly the downward force is applied or changed (default −9.81). A higher value gives more responsive force adjustments.
  • Force Max Impulse: This parameter controls the maximum impulse of the velocity force. Increasing this value allows for stronger, more sudden force.

Lean Force Tab

• Lean Force Pin: Pins tab to the Controls tab.
• Add Lean Force Constraint: Shown if the rig has no lean constraint yet. Adds the constraint the Lean Force needs.
• Enable Lean Force: When enabled, it limits and controls the vehicle's leaning motion. This is particularly useful for simulating the behavior of motorcycles or other two-wheeled vehicles.
  • Angle: This parameter represents the maximum lean angle allowed for the vehicle. It defines how far the vehicle can tilt from its horizontal position. Angle can be reversed by setting a negative Angle.
  • Strength: This parameter controls how strongly the lean constraint is enforced. Greyed out while Sync Strength with Steering is enabled.
  • Sync Strength with Steering: When enabled, the lean constraint's strength follows the vehicle's steering input. This creates a more realistic leaning behavior, especially for motorcycles, where leaning is closely tied to steering.

Traction Control Tab

• Traction Control Pin: Pins tab to the Controls tab.
• Enable Traction Control: Main toggle to activate traction control system.
  • Strength: Controls the intensity of the traction control (0 to 1).
  • Auto Traction Control: Automatically adjusts the traction control. Disable it to choose the friction forces yourself:
    • Enable Lateral Friction Force: Controls side-to-side friction, with its own Strength.
    • Enable Linear Friction Force: Controls straight-forward friction, with its own Strength.

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NOTE: Parallel and Anti-Ackermann steering may conflict when Traction Control is enabled. Traction Control must be disabled to use the DSD drive type.

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Drift Control Tab