Documentation

Welcome to TreCorsa

TreCorsa is a browser-based track builder for Assetto Corsa. Create custom racing tracks without needing complex 3D modeling software like Blender.

Key Features

• Instant Export: Export directly to Assetto Corsa. No Blender or ksEditor needed.
• Satellite Tracing: Import real-world locations and trace roads from satellite imagery
• Terrain Generation: Fetch and generate 3D terrain heightmaps for your location
• Roads and Bridges: Draw ground roads and elevated roads, with adjustable width, camber, and physics road noise
• Trackside Tools: Place walls, kerbs, signs, trees, buildings, lights, and other trackside objects
• Asset Bank: Upload your own textures and models, and reuse assets shared by others

Getting Started

Sign in to open the editor. When you first load it, a welcome popup appears. Set your new track terrain size if you like, then click Start Creating.

The main tool strip sits on the right side of the screen by default. You can drag it by the handle bars if you want it somewhere else.

Basic Navigation Controls

• Orbit: Left-click + drag to rotate the camera
• Pan: Right-click + drag to move the camera
• Zoom: Scroll wheel to zoom in and out
• Faster zoom: Shift + scroll wheel
• Fly: WASD or arrow keys to move the camera (hold Shift to move faster)

Editor Modes

Along the top of the editor you can switch between three modes:

• Terrain Editor - The normal editing mode with the full tool strip
• Texture Paint - Blend detail textures onto the terrain
• Noise Lab - Add a physics road with surface noise for force feedback. More info here

Toolbar Overview

The main toolbar holds the core tools. Clicking a tool often opens a small action strip next to it with extra options (move points, brush, eraser, and so on):

• Select / Navigate - Default mode for looking around the 3D view
• Start & Pit settings - Place and adjust start grid, pits, and hotlap start
• Terrain Brush - Paint terrain height changes
• Draw Road - Create your track layout
• Elevated Road - Build bridges and elevated road sections
• Draw Wall - Add safety barriers and walls
• Draw Kerb - Add kerbs (and sidewalks) along edges
• Draw Surface - Create parking lots, runoffs, and other flat surfaces
• Place Trees - Place single trees, brush forests, or fill areas
• Cliff And Rock Tools - Place cliffs and rocks
• Place Signs & Objects - Add trackside signs and props
• Place Buildings - Place buildings along your track
• Place Models - Place custom 3D models
• Place Crowd Sprites - Add spectator crowds
• Place Lights - Add track lighting
• Water Tools - Add water areas
• Replay Cameras - Set up replay camera positions

Recommended Workflow

1. Start with terrain - Begin with a blank canvas or import terrain from Satellite View. Use the Terrain Brush to shape the landscape, then switch to Texture Paint mode to add surface texture.
2. Draw your roads - Lay out the track with the Road tool. Use Elevated Road when you need bridges or overpasses.
3. Draw your surfaces - Use the Surface tool for parking lots, runoffs, sand traps, and other flat areas.
4. Shape width and camber - On ground roads, use the Cross-Section tool (under Draw Road) to set width, banking, and shoulder blend. On elevated roads, use the Camber tool under Elevated Road.
5. Add kerbs - Place kerbs along road edges with the Kerb tool.
6. Add walls - Place safety barriers and walls around the track.
7. Add details - Place trees, signs, buildings, lights, and other props to finish the look.
8. Add physics road - When the layout is mostly done, use Noise Lab to bake a physics road for better feel in-game. More info here