The FIRST Ever 100% Procedural Road Network System In Roblox

Summary

The video introduces RoRoads, a Roblox tech demo that procedurally generates an effectively infinite road network. Creator and narrator Psuedon describes it as a first-of-its-kind system and walks through how it works, assuming viewers have some mathematical background.

How the System Works

Tensor-field layout

A symmetrical 2×2 matrix defines road directions across the world. Its perpendicular eigenvectors guide different road types: the major axis guides main roads, while the minor axis guides smaller streets.

Adding natural variation

The field combines a basic north–south/east–west grid with random points that bend or radiate road directions. Perlin noise adds coherent, natural-looking variation.

Generating and connecting roads

Agents move through the field, following its directions. Euler numerical integration calculates smooth paths as the field changes, and those paths form a graph of connected nodes and edges.

Agents also search for existing nodes within a “snap radius.” When an agent finds one, it joins the node and stops, creating a junction and preventing nearby duplicate roads.

Rendering roads and terrain

The graph is converted into road geometry. In the demo, roads are raised five studs above the terrain, grass verges are added, and junctions are connected using a simple linear model to keep them flat.

Additional Features

The demo also includes:

• Randomly sized and colored houses
• Perlin-noise-based biomes
• Occasional roadside bushes
• Speed signs and give-way markings
• A pizza-delivery mini-game

Guide and Tutorial

This is a technical walkthrough of the procedural-generation system, not a product review. It explains the core mathematics and implementation approach and presents the demo for viewers to try.