Neon Shrine Demo¶

The Neon Shrine is a built-in 19-step procedural demo that builds a complete scene from scratch through MCP tool calls — materials, geometry, lighting, atmosphere, VFX, PCG, sequencer, even an editor utility widget. It's the fastest way to see UE-MCP working end-to-end after install.

Running the Demo¶

Prerequisites¶

Editor running and connected. Check with project(action="get_status") — bridgeConnected must be true.
An empty or expendable level. The demo creates ~30 actors and writes assets under /Game/Demo/.

Step List¶

Get the ordered list of steps:

demo(action="step")

Run Steps¶

Execute one at a time:

demo(action="step", stepIndex=1)
demo(action="step", stepIndex=2)
...
demo(action="step", stepIndex=19)

Or just ask your AI to "run the Neon Shrine demo" and it will iterate through them.

Each step returns a description of what it created and any new asset paths.

Cleanup¶

Remove every actor and asset the demo created:

demo(action="cleanup")

This wipes /Game/Demo/ and removes the demo actors from the level.

What the Demo Builds¶

#	Step	Description
1	`create_level`	New level at `/Game/Demo/DemoLevel`
2	`materials`	Three materials: floor, glow, pillar
3	`floor`	60m dark reflective floor
4	`pedestal`	Central pedestal cylinder
5	`hero_sphere`	Emissive gold hero sphere on the pedestal
6	`pillars`	Four corner pillar cylinders
7	`orbs`	Four glowing orbs at the pillar bases
8	`neon_lights`	Four coloured point lights (cyan / magenta / gold / green)
9	`hero_light`	Warm point light above the hero sphere
10	`moonlight`	Directional moon light
11	`sky_light`	SkyLight ambient fill
12	`fog`	ExponentialHeightFog atmosphere
13	`post_process`	PostProcessVolume with bloom and vignette
14	`niagara_vfx`	Niagara particle system above the hero
15	`pcg_scatter`	PCG scatter volume on the floor
16	`orbit_rings`	Eight orbiting emissive spheres with rotation
17	`level_sequence`	LevelSequence with the hero sphere bound
18	`tuning_panel`	EditorUtilityWidget control panel
19	`save`	Save the current level

Why It Exists¶

Verification. Running through all 19 steps confirms the bridge, asset registry, materials, lighting, Niagara, PCG, sequencer, and UMG editor utility paths all work.
Showcase. It's a single command that produces something visible.
Reference. Each step is a real handler call you can imitate. If you want to know how to spawn a colored point light or set up a PCG volume, look at how the corresponding step does it.

The implementation lives in plugin/ue_mcp_bridge/Source/UE_MCP_Bridge/Private/Handlers/DemoHandlers.cpp.