Draw a route and build a matching railway around it. This Blender Geometry Nodes setup combines procedural track generation with a train that follows the curve.

Track and train controls

• Curve-driven rails with rail separation, profile and resolution controls.
• Planks and clamps with spacing, scale and variation settings.
• Train movement with automatic or manual animation control.
• Train separation and curve-shaping controls.
• Smoke-plane setup with camera and motion settings.

Included

3DT_Geonode_TrainGenerator.blend, the editable train-and-track generator and its example scene.

Getting started

Use Blender 4.5 or newer. Open a copy of the file and inspect the Tracks and Train objects. Edit the route curve, then tune their Geometry Nodes modifiers. Keep the referenced collections, materials and smoke plane when moving the setup into another scene.

Native Geometry Nodes require Blender; this is not a standalone Unity or Unreal plug-in. Smoke uses the supplied plane-based effect rather than a baked fluid simulation. Check performance with your route length and detail settings.

Choose the appropriate Cubebrush licence for your intended use.