Stop fighting WheelColliders for drift cars. Get camber, clutch kicks, and actual drift scoring.
Simple Drift Controller replaces Unity's WheelCollider with a raycast-based suspension system purpose-built for drift. Every axle has independent left and right suspension travel, true camber dynamics, a three-region tire model, and a fully tunable drivetrain, from the engine torque curve and gear ratios to differential bias ratios and anti-roll bar stiffness.
Use the Auto-Configure wizard to go from meshes to a sliding vehicle in under a minute, or build your hierarchy manually for full control.
Camber System
- Static camber from -12 to +5 degrees
- Dynamic camber driven by body roll with configurable factor (0-5x) and clamping
- Left and right wheels use mirrored camber angles automatically
- Camber thrust generates lateral force toward the lean direction for sharper turn-in
- Grip penalty at excessive camber angles, reduces peak lateral force proportionally
Drivetrain
- Engine simulation: multi-keyframe torque curve, rotational inertia, kinematic RPM coupling, stall detection
- Automatic transmission: configurable gear ratios (4/5/6-speed presets), shift-up/down RPM thresholds, shift duration
- Differential models: Open, Locked, and Limited-Slip with configurable torque bias ratio
- Clutch kick: brief torque spike (1-5x multiplier, 0.1-1s duration) to break traction on demand
Tire Model
- Three-region lateral force curve: linear climb to peak, gradual falloff, residual grip in full slide
- Peak slip angle, max slip angle, and slide grip ratio, fully tunable per axle
- Friction circle coupling, throttle and brake forces interact with lateral grip
- Relaxation length, lateral force builds based on tire rolling distance
- Speed-scaled force response for progressive turn-in at low speed
Steering
- Max steer angle up to 70 degrees for angle kit builds
- Sensitivity, smooth speed, and auto-return per axle
- High-speed reduction for forgiving arcade feel at speed
- Invert steer per axle
Drift Scoring
- Chassis slip angle detection with configurable minimum angle and speed thresholds
- Score accumulation: angle over time with multiplier
- Countersteering detection with bonus points
- Drift count, max angle tracking, and cooldown between drifts
- Public API for reset and live score access
Camera
- Drift-aware chase camera with lateral swing-out proportional to drift angle
- Velocity-based look direction blending (0-1)
- Speed pushback and ground-height avoidance
- Mouse freelook with auto-recenter when driving
- Spin yaw threshold prevents camera whip during lost control
- Multi-camera manager for switching views
Effects and Feedback
- Per-wheel skid marks via TrailRenderer prefabs, spawned and driven by slip
- Per-wheel smoke via ParticleSystem prefabs, spawned and driven by slip
- Both prefab slots are optional and independent
- Exclude steering axles checkbox for rear-only effects
- Tire screech audio with auto-created AudioSource, smooth fade in/out, and configurable volume/pitch curves
- No start/stop artifacts, audio loops continuously and fades volume only
Audio
- Dual AudioSource system for engine sound, auto-created if none exists
- RPM-blended pitch and volume between idle and running clips
- Always-audible engine floor at idle (minimum 0.15 volume)
- Shift sound support with one-shot clip on gear change
Presets, One-Click Setup
- Vehicle presets: Street, Tuner, Pro Drift, Formula D, set weight, engine, transmission, suspension, differentials, and traction control
- Surface presets: Asphalt, Polished Concrete, Wet, Low Grip, set tire curve per axle
- Engine presets: I4 NA, I4 Turbo, I6 NA, V6 NA, V6 Turbo, I6 TD, V8 NA, V8 S/C
- Transmission presets: 4, 5, or 6-speed gearboxes
Input
- New Input System via DriftInputSystem, auto-added with no manual wiring
- DriftInputDelegate for code-driven control (AI, testing, networked vehicles)
- Default .inputactions asset included with full action map
- Dedicated clutch kick and handbrake toggle bindings
Lights
- 4-state cycle: Off, Main, HighBeam, Accessories
- Automatic brake and reverse lights
- Configurable light lists per channel
Telemetry
- DriftInfo with live runtime data in the custom editor
- Speed, throttle, steering, engine RPM, gear, torque, and drive torque
- Per-axle articulation, compression, ground contact, steer angle, camber, and lateral force
- Drift angle, drifting status, and score
- 0-60 and 0-100 timers
- F12 logging and clipboard export
Editor
- Full custom inspector for DriftVehicle with preset buttons, sliders, and real-time gauges
- Auto-Configure wizard with interactive body and wheel setup
- SceneGUI handles for Center of Mass and camber visualization
- Live DriftInfoEditor for Play Mode telemetry
What's Included
- 15 C# scripts (runtime + editor)
- Custom inspectors with preset buttons, sliders, and real-time gauges
- Auto-Configure editor wizard (body + wheel setup)
- Full documentation with setup guide, component reference, and tuning tips
- Image stub list for documentation screenshots
