Pivot and Alignment Tool

Pivot and Alignment Tool makes group-pivot work direct and repeatable. Select a valid parent Transform, enter an edit session, then place or rotate its pivot in world or local space while the children keep their visible world placement. Use exact values, a direct child, the children's average, normalized Renderer Bounds, or a configurable snap grid.

The package also includes parent and wrapper helpers, Undo-aware operations, a runtime API, a self-contained primitive-based Demo scene, English and Chinese Editor UI, and two embedded PDF user guides.

Core features

• Exact world and local pivot position and rotation controls.

• Fast placement at a child, child average, bounds corner, face center, or bounds center.

• Uniform or per-axis grid snapping for Scene handle movement.

• Parent and wrapper helpers for targets that cannot be edited directly.

• Undo integration plus runtime APIs for pivot, alignment, and bounds calculations.

• English and Chinese UI, a self-contained Demo, and bilingual PDF guides.

Quick start

1. Open the included Demo scene and select Demo_Root/Pivot_Group.

2. Open Pivot and Alignment Tool from the Tools/HT menu.

3. Choose Move / Rotate Pivot and select an exact, child-based, bounds, or snap-grid placement method.

4. Stop the edit session and use Unity Undo whenever you need to revert.

Typical workflows

Center group pivots using hierarchy bounds; align a pivot with a child or the average of direct children; place a pivot at a bounds corner or face; and normalize pivots using repeatable coordinates and grid increments.