Variant Sets

Blueprint AI authors Level Variant Sets — the configurator / arch-vis asset that switches a level between states. A Level Variant Sets asset holds a tree of named variant sets (state groups like “Materials” or “Lighting”), each holding named variants (the switchable states like “Red” or “Blue”).

Note

Conditional on the engine’s Variant Manager Content plugin (enabled by default). The asset and its full set → variant tree are authored here; the per-actor object bindings and captured property values are a level-editing step (they reference live actors) and are surfaced read-only by describe.

Build a variant tree

Create a Level Variant Sets asset called LVS_Configurator in /Game/Variants Add a variant set called Materials, then add variants Red and Blue to it Add a variant set called Lighting with variants Day and Night

Reorganize

Rename the Red variant in the Materials set to Crimson Rename the Materials variant set to Surfaces Remove the Blue variant from the Surfaces set

Inspect

Describe the Level Variant Sets LVS_Configurator to see its variant sets, variants, and per-variant actor bindings

Tip

Describe reports each variant’s object-binding count, captured-property count, and bound actor paths — so you can see which actors a variant drives even though binding authoring happens in the level editor.