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Hierarchy & inspector

The hierarchy (left) lists every entity; the inspector (right) edits the selected one. Together they’re how you build and tune a scene.

Hierarchy

Section titled “Hierarchy”

The hierarchy (packages/editor/src/components/GameHierarchy.tsx) is the entity tree — each row is a Three.js Object3D. You can:

  • select (click; shift-click to multi-select);
  • drag to reparent;
  • search / filter by name;
  • toggle visibility;
  • right-click for context actions;
  • read kind icons (mesh, light, camera, …).

In play mode the tree becomes a live view of the running scene graph: objects the game spawns at runtime appear alongside authored entities (selectable and nudgeable, ephemerally), and each parent’s child list is capped with an ”… N more” row so a huge live scene stays scrollable.

The Ground entity selected in the hierarchy
Selecting a hierarchy row selects the entity.

Inspector

Section titled “Inspector”

The inspector (packages/editor/src/components/Inspector.tsx) is adapter-driven, not a fixed list: the active authoring adapter describes what the selection can edit, and the inspector renders exactly those sections — Transform, the adapter’s own generic fields, per-surface sections that own a real format, project tool sections.

With nothing selected, the inspector shows nothing — no box at all. What you click on determines what the inspector shows, and no click means no subject. Scene-global actions (like navmesh baking) live in the Debug menu, not in an empty inspector state.

The inspector showing the Light section for the Sun entity
The inspector adapts to the entity — a light shows light properties.

See also

Section titled “See also”