Spline Architect v2.1.5 (26 Feb 2026) is a powerful spline tool that introduces innovative workflows for working with splines in both 3D and 2D environments. It consists of a core package and a range of optional addons available separately. The tool is ideal for creating roads, intersections, curved structures, train tracks, camera paths, and character movement systems.
Key features include:
- Terrain Tools: Generate mountains, rivers, paths, and entire worlds using splines.
- Object Cloning: Clone GameObjects or sequences of objects along spline paths.
- Deformation: Deform meshes, mesh colliders, prefabs with hierarchies, LOD groups, and decals (projection decals not supported). Apply deformation effects to control points, add layered noise, snap deformations to control points or GameObjects, and export deformations as mesh assets.
- Splines & Spline Connectors: Loop, split, and join splines; snap control points to grids for perfect turns; connect control points to spline connectors; link splines for seamless transitions; and move splines using other splines.
- Animation: Animate GameObjects or deformations along splines using Unity’s Animation System or custom scripts; animate splines via spline connectors or script; move objects between linked splines; and apply warp effects using control point effects.
- Performance: Built with multithreading and Unity Burst for optimal performance; caches positions and normals; provides real-time view of spline memory, length, and other metrics; supports building games without mesh export; allows stripping unwanted components from builds; and is optimized for low-end mobile devices.
- API: Fully exposed API enables runtime or editor creation of splines, segments, deformations, and followers. Supports dynamic updates via built-in pooling. Enables custom traffic or train systems (with example scripts). Supports instantiation using prefabs. No DLLs—code is fully exposed, editable, and includes numerous example scripts to get started.
2026-03-18 00:00:00-update version:Spline Architect v2.1.5 (26 Feb 2026)
