LCM 3D Navigation-True Volumetric 3D Navigation Demo

LCM 3D Navigation for Unreal Engine replaces that surface with volume.

 It builds a sparse voxel octree of the empty space in your level, so an agent can climb, dive, thread a gap between two rooftops, or hold station in the middle of a room with no floor underneath it at all.

What you are downloading

A single Windows build containing **18 demo scenarios**, reachable from an in-app menu. No setup, no project to open, no engine required. Each scenario runs the same navigation system through a different problem:

Try these first

If you have two minutes:

1. Deep Space. Watch a ship route through an asteroid field. There is no ground plane anywhere in that level.
2. Vertical Skyscraper. Agents climb the tower interior, floor by floor, through the gaps rather than around the outside.
3. Dynamic Obstacles.Watch the movers seal a corridor and the crowd re-route mid-flight.

Press the debug toggles in the demo HUD to see the octree, the chunk grid and the planned paths drawn live. That view is what the AI is actually reasoning about.

What the plugin does

• True volumetric navigation.A sparse voxel octree of open space, not a walkable surface.
• Infinite streaming open worlds and Finite levels .Chunks build around your agents as they travel, and a persistent long-range graph keeps planning through geometry that has not streamed in yet.
• Behaviour Tree, StateTree and Mass Entity, at full parity. One agent or ten thousand, same octree.
• Deterministic CPU solving. Same input, same output, every run. That is what makes replays, lockstep networking and automated tests reproducible.
• Six-degree of freedom flight and swim locomotion, with four archetypes  multirotor, fixed-wing jet, bird and kinematic.
• Runtime obstacle updates. Doors, lifts and moving cover restamp the octree and agents reroute live.
• True-3D environment queries and perception, with volumetric line of sight.
• Gameplay Debugger integration, live octree and path visualisation, an editor tuner and a one-click health check.

Delivered as complete C++ source, fully exposed to Blueprint. No C++ required to use it.

If you want the plugin

It ships on Fab for Unreal Engine **5.2 through 5.8**, each version built and

verified against that engine.

- Discord: https://discord.gg/nXkpD6uaBG

- Get it on Fab: https://www.fab.com/listings/92f05e42-d7be-4de3-abe8-7b0a3e70ba73

- Documentation: https://uedevlabs.github.io/

Included with the plugin: 18 demonstration maps, a 129 page illustrated manual,

11 step-by-step tutorials and a full API reference.