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PCG Volume

APCGVolume — bounding region that runs a PCG Graph inside. See PCG → Volumes and Bounds for the full details.

TL;DR

Property Effect
Graph Instance The PCG Graph asset
Generation Trigger OnLoad / OnDemand / GenerateAtRuntime
Regenerate In Editor Auto-rerun on property changes
Hierarchical Generation Coarse + fine passes for WP
Seed Per-volume override of randomness

When to prefer PCGVolume over PCGComponent

  • You want a distinct bounded region in the level (e.g. forest, town, dungeon clearing)
  • You want artists to drag corners to reshape the region
  • You want to see the bounds in the viewport without an explicit actor

Use a PCGComponent instead when the bounds derive from another actor (e.g. a building blueprint that procedurally dresses its own interior).

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