Install

1. Edit > Preferences > Get Extensions, open the top-right menu, and choose Install from Disk.
2. Select the ZIP (or drag it into Blender). The extension enables automatically.
3. In the 3D Viewport, press N and open the Proc. Warehouses tab.

Requires Blender 5.0+. For export, the bundled FBX and glTF add-ons must be enabled (they are by default).

Generate in 30 seconds

1. Click Random Warehouse. A building appears at the 3D cursor.
2. Click it again to replace it with a new one.
3. Like one? Open Output and click FBX or glTF.

Controls

Output section (collapsed)

• Join into Single Mesh: merges the parts into one object and keeps material slots.
• FBX / glTF: one-click export.
• Clear Generated Building: removes the current building.
• Info line: style, seed, triangle count, material count, and notes (for example “trimmed: props, relief”).

Recreate a building

The Seed field shows the seed actually used. Later, switch the refresh toggle off, keep the same Style, Colors, Size, Floors, and Include Props, enter the seed, and click Generate. The triangle target in Preferences can affect which optional details are kept.

Keep a building

Generating always replaces the last building the add-on made. To keep one, duplicate it (select the root empty and its children, Shift+D) or join and rename it. The add-on never deletes objects it didn’t create.

Preferences

Edit > Preferences > Add-ons > Warehouse Forge

Output structure

A parent Empty named Warehouse_<Style>_<seed>, centered on the footprint at ground level, with child objects: Foundation, Walls, Roof, Windows, Doors, Docks, Details, and Props. All geometry is in meters with identity transforms.

Materials

Every material is a flat-color Principled BSDF, with no images or UVs, and names are reused (no .001 copies). They start with WHF_, for example WHF_Window_Glass, WHF_Door_RollUp, and palette materials like WHF_Wall_Corrugated_IndustrialBlue. A building uses at most 18 materials. Existing materials are never recolored, so if you texture one, later buildings reuse your version.

Triangle budget

If a building goes over the target, optional detail is removed in this order: props, small relief, then secondary assemblies. Walls, roofs, openings, doors, and windows are never removed, so very large multi-storey buildings may stay above a low target. The info line tells you.

Export

• FBX: -Z forward, Y up, flat shading, no UVs or textures.
• glTF: binary .glb, Y up, plain base-color materials, no UVs.

Both export the building at the origin regardless of its position in the scene.

Tips and troubleshooting

• Nothing in the sidebar: confirm the extension is enabled and open the Proc. Warehouses tab.
• Export says the collection isn’t in the active view layer: re-enable the Warehouse Forge collection in the Outliner.
• Export says to enable an add-on: enable FBX format or glTF 2.0 format in Preferences.
• A generation error keeps the previous building. Report the style, seed, settings, and console traceback.
• Details missing? The triangle target trimmed them. Raise it in Preferences.