Roads

Creating Roads

Roads are the foundation of your track. The Road tool lets you draw your track layout by placing control points.

Road Tool Controls

  • Left click - Place a road point
  • Right click point - Delete that point
  • Click existing road - Add a point to that road
  • Click existing point - Connect roads together

Connecting Roads

To connect two roads together, click on an existing road edge (not a point) while the Road tool is active. This will create a connection between the roads. When roads are connected, you'll see small drag markers at the connection point that allow you to control the width of the connection.

Drag these markers to adjust how wide the connection is, giving you control over how smoothly roads merge together. This is useful for creating realistic intersections, merge lanes, and track connections.

Using the Curve Tool

The Curve tool behavior depends on the selected Spline System for the active road:

  • Tangent (Auto) - Click a road point, then scroll to change corner sharpness at that point (tangent strength).
  • Bezier Handles - Click a road point to show in/out handles, then drag handles to shape the corner directly.

Bezier Handles mode gives explicit corner control and is ideal when you want precise apex shaping.

Road Properties

When the Road tool is active, you'll see controls in the Track Controls panel:

  • Road Width - Adjust the width of your roads (5-30 meters)
  • Road Edge Width - Width of the edge transition strip (helps match texture resolution)
  • Road Texture Profile - Choose different road surface textures
  • Spline System - Choose how this road's centerline is generated:
    • Tangent (Auto) - Automatic tangent-based spline with per-point sharpness controls from the Curve tool.
    • Bezier Handles - Direct handle-based corner shaping per control point.
  • Curve Alpha - Catmull-Rom parameterization for Tangent mode (0 = uniform, 0.5 = centripetal, 1.0 = chordal)
  • Road Tension - Smoothness control for Tangent mode (lower = tighter corners, higher = smoother/looser flow)

Road settings are per road path. Spline System selection is saved with the track, so each road keeps its own curve behavior after reload.

Undo System

TreCorsa includes an undo system for road point placement:

  • Ctrl+Z (or Cmd+Z on Mac) - Undo the last road point you added
  • Undo Button - Click the undo button (↶) in the top toolbar next to the settings button

The undo system tracks up to 5 recent road point changes, allowing you to quickly revert mistakes while building your track layout. Note: Undo currently works for road points only - walls, kerbs, and other elements are not affected by undo.

Camber Tool

The Camber tool allows you to add banking (camber) to road corners. After activating the tool:

  • Click a road point - Select it for camber editing
  • Drag the control - Adjust the camber angle at that point

This is especially useful for creating banked corners and elevation changes.