Ultimate Level Design Kit - Overview

What it does

Ultimate Level Design Kit is an Unreal Editor greyboxing toolkit for placing procedural shapes, editing faces, assigning material slots, controlling UVs, measuring space, copying selected actors, and building spline/path layouts without leaving the editor.

The current workflow is viewport-first: select a tool, press Space to enter or freeze the placement preview, adjust values from the editor-mode Details panel, and click in the viewport to place. Recently used tool and tab state are restored when you re-enter the editor mode.

What changed since the previous documentation

Area	Current behavior
Standalone Pipe access	Pipe is available directly from the Shapes toolbar, quick-spawn toolbar, and Place Actors panel with its own radius, length, wall thickness, cap, and material controls.
Cone pyramid controls	Cone now exposes Pyramid Amount and Pyramid Sides, so a square or triangular pyramid is discoverable without knowing to manually lower Cone Sides.
Preview material	Viz uses the base M_ULDK_VizGhost material directly. There is no separate viz material instance to edit.
Material clearing	Clearing Material Slot 0/1 falls back to the ULDK default material instead of keeping a stale custom material.
Cylinder rings	Ring Count reveals one Material Slot 2 after slot 1; that slot drives all cap rings and disappears when Ring Count is 0.
Cylinder ring surface	Ring Surface chooses Top, Bottom, or Both instead of separate top/bottom booleans.
UV slot targeting	Use UV Material Slot lets UV controls affect one generated slot while each slot keeps its own stored UV settings.
Smooth normals	Smooth normal controls are intentionally absent. Generated normals are smooth where the shape requires smooth shading.
Collision	Default generated shapes use BlockAll and complex collision. Use normal actor/component Details if you need to override collision.
Shared setup	The top Setup section is shared by shapes and utilities: Snap toggles ULDK snapping, Snap Size controls the snap distance, and Pivot X/Y controls the normalized pivot.
Stair step face selection	Linear, Spiral, Helix, and Circular stairs expose each step top as an individual face-edit surface instead of one coarse staircase top plane.
Barrel tinting	Barrel Wood Tint and Hoop Tint update existing material parameters directly during color-wheel edits instead of rebuilding mesh sections or reassigning section materials.
Barrel hoop editing	Selected barrels expose individual hoop hit targets in editor mode. Dragging one hoop stores a per-hoop override while the other hoops keep the global settings.
Copy and instance	Copy previews all selected sources; Instance output uses linked child actor components so source actor properties can propagate.
Escape behavior	Escape cancels an active preview/tool. After placement, the placed actor is selected for immediate editing.
Preview visibility	The preview hides when the mouse is outside the viewport unless the preview has been frozen with Space.
Reset	The editor-mode Details panel has a compact reset icon button for resetting selected tool properties to defaults.

Variant map

Family	Visible subcategories
Stairs	Linear Open, Linear Closed, Linear Box, Spiral/Helix, Circular Platforms, optional side bars and balustrades.
Spline Path	Road, Actor Placement, Spline Mesh, Fence, and Pipe modes with Linear, Circular, or Polygonal layouts.
Actor Placement	Click, Brush, Grid, and Physics Drop placement with weighted Actor Class or HISM entries.
Cylinder and Pipe paths	Cylinder Path Points and Pipe Path Points cover editable multi-segment tube/path forms.

Main groups

Group	Tools	Primary use
Shapes	Box, Wall, Floor, Wedge, Cylinder, Cone, Sphere, Column, Pipe, Arch, Stairs, L-Shape, Polygon, Door, Ladder, Barrel	Blockout geometry, traversal, structural forms, interactable placeholders, props
Editor utilities	Editor Mode, Copy Tool, Instance Group, Measure Tool, Text Label	Fast placement, repetition, linked duplicates, notes, measurements
Placement and path utilities	Actor Placement, Spline Path	Roads, fences, spline meshes, prop scatter, physics drop piles, point-based layouts

Area

Current behavior

Standalone Pipe access

Pipe is available directly from the Shapes toolbar, quick-spawn toolbar, and Place Actors panel with its own radius, length, wall thickness, cap, and material controls.

Cone pyramid controls

Cone now exposes Pyramid Amount and Pyramid Sides, so a square or triangular pyramid is discoverable without knowing to manually lower Cone Sides.

Preview material

Viz uses the base M_ULDK_VizGhost material directly. There is no separate viz material instance to edit.

Material clearing

Clearing Material Slot 0/1 falls back to the ULDK default material instead of keeping a stale custom material.

Cylinder rings

Ring Count reveals one Material Slot 2 after slot 1; that slot drives all cap rings and disappears when Ring Count is 0.

Cylinder ring surface

Ring Surface chooses Top, Bottom, or Both instead of separate top/bottom booleans.

UV slot targeting

Use UV Material Slot lets UV controls affect one generated slot while each slot keeps its own stored UV settings.

Smooth normals

Smooth normal controls are intentionally absent. Generated normals are smooth where the shape requires smooth shading.

Collision

Default generated shapes use BlockAll and complex collision. Use normal actor/component Details if you need to override collision.

Shared setup

The top Setup section is shared by shapes and utilities: Snap toggles ULDK snapping, Snap Size controls the snap distance, and Pivot X/Y controls the normalized pivot.

Stair step face selection

Linear, Spiral, Helix, and Circular stairs expose each step top as an individual face-edit surface instead of one coarse staircase top plane.

Barrel tinting

Barrel Wood Tint and Hoop Tint update existing material parameters directly during color-wheel edits instead of rebuilding mesh sections or reassigning section materials.

Barrel hoop editing

Selected barrels expose individual hoop hit targets in editor mode. Dragging one hoop stores a per-hoop override while the other hoops keep the global settings.

Copy and instance

Copy previews all selected sources; Instance output uses linked child actor components so source actor properties can propagate.

Escape behavior

Escape cancels an active preview/tool. After placement, the placed actor is selected for immediate editing.

Preview visibility

The preview hides when the mouse is outside the viewport unless the preview has been frozen with Space.

Reset

The editor-mode Details panel has a compact reset icon button for resetting selected tool properties to defaults.

Family

Visible subcategories

Stairs

Linear Open, Linear Closed, Linear Box, Spiral/Helix, Circular Platforms, optional side bars and balustrades.

Spline Path

Road, Actor Placement, Spline Mesh, Fence, and Pipe modes with Linear, Circular, or Polygonal layouts.

Actor Placement

Click, Brush, Grid, and Physics Drop placement with weighted Actor Class or HISM entries.

Cylinder and Pipe paths

Cylinder Path Points and Pipe Path Points cover editable multi-segment tube/path forms.

Group

Tools

Primary use

Shapes

Box, Wall, Floor, Wedge, Cylinder, Cone, Sphere, Column, Pipe, Arch, Stairs, L-Shape, Polygon, Door, Ladder, Barrel

Blockout geometry, traversal, structural forms, interactable placeholders, props

Editor utilities

Editor Mode, Copy Tool, Instance Group, Measure Tool, Text Label

Fast placement, repetition, linked duplicates, notes, measurements

Placement and path utilities

Actor Placement, Spline Path

Roads, fences, spline meshes, prop scatter, physics drop piles, point-based layouts