Spline Architect streamlines level design in UE5. Draw splines to generate walls, floors, and other architectural elements, swap presets instantly, and bake results for optimized performance.

Designed for speed, flexibility, and reliability—ideal for both prototyping and production.

Why Choose Spline Architect?

• Speed: Go from concept to detailed architecture in minutes, not hours.

• Flexibility: Mix, match and randomize mesh styles, materials and layouts without touching Blueprints.

• Performance: Bake to Instanced meshes for minimal draw calls; unbaked prototypes let you iterate rapidly.

• Portability: Share your creations with non‑plugin teams or distribute on FAB Marketplace with zero install friction.

Trailer Video

Documentation, tutorials, examples

Example project

Key Features

• Preset-driven Prototyping

  Quickly block out your level with any placeholder meshes along the spline, then swap to production‑grade assets by changing Wall Preset—voilà, you have fully detailed, production‑ready structures without manual rework.

• Spline‑Based Modular Walls
  Draw your walls directly in‑editor with splines. Corners auto‑generate curved or straight meshes—no manual fitting tweaking.

• Dynamic Floors & Ceilings
  Generate unique floor and ceiling meshes for every wall. Control UVs, thickness, subdivisions and even vertex colors on the fly.

• Boolean Cutouts
  Easily custom openings in floors by dropping in any StaticMesh as a boolean cutter.

• Custom Pieces
  Snap doors, windows, trim or any mesh to walls. Lock in place or let them follow spline edits—fully adjustable count, length and overlap.

• Instant Baking
  One‑click bake converts all procedural meshes into StaticMeshComponents or HierarchicalInstancedStaticMeshs for rock‑solid performance.

• Wall Presets & Widgets
  Save and recall entire wall or building configurations. Utility widgets let you mass‑select, bake, convert or regenerate with ease.

• Seamless Conversion
  Convert your spline actors into vanilla Unreal actors for easy asset sharing or marketplace packaging. Preserve hierarchy or break into per‑mesh actors for fine‑tuned editing.

Feel free to participate in comment section, I will happily help solve problems, fix bugs, and add new useful features, thanks!

Spline Architect depends on Geometry Scripting plugin that comes with UE5 so "Geometry Scripting" plugin will be enabled in the Plugin Settings.