Widgets¶

Spline Architect includes two widgets designed to simplify and speed up working with the plugin.

W_SplineArchitectUtilityWidget provides quick functions to add new actors like SplineArchitectWall, SplineArchitectBoolean, or SplineArchitectCustomPiece. It also offers tools to quickly select or bake all/selected/connected SplineArchitectWall actors, as well as convert them to regular actors. There are also utilities for working with Splines.
W_WallPresets widget is meant for quickly creating new SplineArchitectWall presets. These can be presets for individual SplineArchitectWall actors or complex presets consisting of multiple walls and CustomPiece elements — such as entire buildings.

Widgets can be accessed via Window > Open Spline Architect Widget/Wall Presets

Button	Explanation
Add Spline Wall	Creates a new `SplineArchitectWall` in the Level and adds a `SplineComponent` to it.
Add Wall to Selected	Creates a new `SplineArchitectWall` in the Level and automatically attaches it to the currently selected `SplineArchitectWall` (also copies the `WallPreset` from the selected one).
Add CustomPiece	Spawns a `CustomPiece` at the center of the screen and attaches it to the selected `SplineArchitectWall`.
Add Boolean	Spawns a `SplineArchitectBoolean` at the screen center. If a `SplineArchitectWall` is selected, the Boolean is automatically added to its “Booleans to Use” array.
Clean Selected	Keeps only the main `SplineArchitectWall` and deletes all attached actors. Also resets the `WallPreset` to default.

Button	Explanation
Select Parents	Selects only parent `SplineArchitectWall` actors with a `SplineComponent` from the current selection.
Select Connected	Selects all attached `SplineArchitectWall`, `CustomPiece`, and other connected actors — both parent and child.
Walls ☑️ Pieces ☑️ Other ☑️	Toggle inclusion of `SplineArchitectWall`, `SplineArchitectCustomPiece`, or other actors.

Button	Explanation
StaticMesh dropdown 🔽	Select a `StaticMesh` (flat mesh with open edges) to use as a template.
Set points	Reads border edges from the selected mesh (located in `Plugins/SplineArchitect/Meshes/BasicShapes`) and generates spline points based on them for selected `SplineArchitectWall` actors.
Refresh	Scans the `Plugins/SplineArchitect/Meshes/BasicShapes` folder and refreshes the dropdown options.

Wall-only presets. Allows quick copy/paste of individual SplineArchitectWall presets from selected actors.

Button	Description
Copy	Copies the `WallPreset` struct from the selected `SplineArchitectWall` and saves it as a SaveGame file `SplineArchitectWallPresets.sav` in the "YourProject\Saved\SaveGames" folder.

Presets composed of multiple SplineArchitectWall and CustomPiece actors. Allows quick duplication of entire building structures.

Button	Description
Copy	Copies the `SplineArchitectWall` hierarchy (and optionally `CustomPiece`s) into a preset. Can be pasted onto another `SplineArchitectWall` with a spline — recreating the full stack.
Paste	Pastes a previously copied hierarchy onto a selected `SplineArchitectWall`. If it lacks a `SplineComponent`, it searches for a parent actor with a spline.
Copy Pieces?	Whether to also copy `CustomPiece` actors attached to the selected building.
PresetName	Name of the preset.
Save Preset	Saves the preset as a SaveGame file `SplineArchitectSaveGame.sav`, located in "YourProject\Saved\SaveGames".
Filter	Filters presets by input text.
Clear Presets	Deletes all presets!

Button	Explanation
Unbake Connected	Unbakes all selected `SplineArchitectWall` actors (both parents and children).
ReBake Connected	Rebakes all selected `SplineArchitectWall` actors (both parents and children).
Unbake All	Unbakes all `SplineArchitectWall` actors in the Level.
ReBake All	Bakes all `SplineArchitectWall` actors in the Level.
Bake Unbaked	Only bakes `SplineArchitectWall` actors that haven't been baked yet.

Button	Explanation
Actor per parent 🔽	- Actor per wall – creates one actor for each `SplineArchitectWall`, with instanced `StaticMesh` components. - Actor per parent – creates one actor per `SplineArchitectWall`, maintaining parent-child hierarchy. - Actor per mesh – creates a separate `StaticMeshActor` for each mesh, useful for manual editing.
Components 🔽	- Instanced – creates only `HierarchicalInstancedStaticMesh` components. Fewer draw calls, less editable. - Components – creates a `StaticMeshComponent` for each mesh, easier to edit but uses more draw calls.
Convert Selected	Converts selected `SplineArchitectWall` actors into regular actors with components. Useful when the project doesn’t have the `SplineArchitect` plugin.
Convert All	Converts all `SplineArchitectWall` actors in the Level into regular actors.
Delete original? ☑️	Deletes original `SplineArchitect` actors and keeps only the converted ones.

Utility Widget¶