This tool is a work in progress procedural road system designed to avoid the need for manual 3D road modeling/mapping.
The road layout is controlled by an editable spline, allowing you to easily adjust curves position and direction to fit your environment. No premade road model is required, the shape of the road is automatically generated using customizable parameters. (Width, Material, ...)
This system also procedurally handles sidewalks, decals, and streetlights placement, removing the need to manually place props along the road. All elements adapt dynamically based on the road’s configuration.
NOTE: Assets shown in some of the screenshots/videos (e.g. Models, Materials, Textures...) are not featured with this library.
📀Setup
Road texture
I really recommend using a triplanar shader for the road texture otherwise you will still face some issue with "seems" at some places when using a standard shader.
The sidewalk texture can be just a regular seamless texture, however if you want to use a sidewalk texture with an actual sidewalk border, here is how it should be setup for the border to face the road properly:
This project is fully open source and I encourage ppls to take a look https://github.com/K3rhos/RoadTool, don't hesitate to make some pull requests in case you wanna suggest new features, fix bugs you may have found or anything else.
A bug regarding lanes crossing each others at intersections when roads have more than 2 lanes
Traffic UpdateJun 22, 2026
Added
A road manager singleton (manage some stuff globally for the entire roads layout in the scene)
Traffic support for roads
Parking system component for parking spot spawner
Demo car controller
Demo scene to showcase the car controller, the traffic ai, traffic lights and more
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