Polytrack Wall-Riding & Air-Braking: Advanced Physics Engine Mastery

Deep Physics Engine Fundamentals

Polytrack calculates vehicle dynamics using a custom 3D rigid-body simulation that takes into account tire friction coefficients, rotational inertia, and surface normals:

Rotational Inertia + Tire Grip Vectors + Downforce Scaling = Dynamic Vehicle Telemetry

1. Centrifugal Wall-Riding Mechanics

Vertical wall rides are not scripted animations—they are genuine physics interactions:

• Surface Normal Transition: Transition onto the vertical bank without abrupt steering angle changes.
• Apex Altitude Maintenance: Hold the upper third line along the curve to maximize exit speed as analyzed in Official Track 04 Guide.
• Gravity Dive Vector: As the wall levels out, steer slightly downward to convert vertical potential energy into forward kinetic acceleration.

Review foundational inputs in our Beginner Racing & Controls guide.

2. Air-Braking & Flight Trajectory Control

When launching off giant ramps, over-jumping the landing zone kills lap times:

• The Problem: Excessive airtime keeps tires off the ground where you cannot accelerate or steer.
• The Solution (Air-Braking): Tap S (Brake/Reverse) while mid-air. This arrests the vehicle’s angular pitch-up moment, forcing the nose down and pulling the car toward the asphalt faster.
• Air Roll Leveling: Tap A or D to match the camber of the landing slope as detailed in Drifting and Advanced Physics.

3. Vector Snapping on Slope Touchdowns

Landing on inclined slopes often causes violent physics bounces:

1. Pre-Align the Chassis: Rotate your vehicle in mid-air until the undercarriage matches the slope incline angle.
2. Hit Full Throttle upon Touchdown: Immediate throttle application forces the physics engine to snap tire grip vectors to the track surface normal.
3. Test your maneuvers on extreme tracks in the Extreme Stunt and Loop Track Codes collection!

Check out competitive lines in Shortcuts and Speedrun Tips and track building advice in the Track Editor Complete Guide.