This tool extends transform functionality, allowing for temporary custom pivots for objects and groups of objects, without the hassle involved with creating empty GameObjects. The pivot can be repositioned and rotated independent of the selected objects.
This is set up as a UPM package, so you can add to your project either via Package Manager's Add package from git URL [https://github.com/TeckUnity/PivotTool.git], or grab the repo and Add package from disk.
If you have the Custom Tools panel enabled, the Pivot Tool icon will be available as long as you have at least one scene object selected. Alternately, you can click on the Custom Tool icon (next to the Transform tool in the left of the main toolbar).
With the tool active, a transform gizmo will be present at the current pivot location. This gizmo allows you to move, rotate, and scale the selected object[s]. All operations occur relative to the pivot. As this is a standard Transform handle, Shift switches to screen-space, and Ctrl enables value-snapping.
While holding A, or by toggling the Adjust Pivot button, the gizmo will move and rotate the pivot, independent of the selected objects. If you're a Blender user, this is similar to the functionality offered by the cursor.
Holding S, or toggling the Snap Pivot button, will allow you to snap the object to scene geometry. While Snap is active, a white sphere will indicate where the pivot will be placed when you click. The cursor will snap to nearby vertices, edges, and edge midpoints. Snap Tolerance is adjustable and is measured in screen-space pixels.
Snapping supports basic SpriteRenderers, but only in 2D view mode (for now).
Combining A and S allows you to snap just the cursor to scene geometry.
Hotkeys make use of the Shortcut API, so the following are rebindable via Edit->Shortcuts.
APivotTool/Adjust Pivot: Hold to move/rotate the pivot pointSPivotTool/Snap Pivot: Hold and click in the scene to snap the pivot to the clicked point (tests against geometry). Snaps to vertices, edges, and edge midpoints.
- Keyboard entry for position, rotation, scale
- Should respect
adjustPivotmode - Probably just a GUI overlay like the adjust/snap pivot indicators
- Should respect
- Respect local/global pivot mode
- Currently only uses local
- Save/restore pivots?
- Either via bookmarks, or automatically by selection
- Create concrete pivot on demand via empty GameObject
- Could be tricky to manage in the sense that a user could easily end up with a ridiculous chain of empties if not careful
- Option to change hotkey behaviour from press-and-hold to toggle (in preferences)
Snap could instead snap the object[s] to the position. Combining Snap with Adjust would snap the pivot independent of the object[s].DoneEither add a Snap to Vertex mode, or optionally allow the existing Snap mode to snap to vertices within a configurable thresholdDoneConfigurable threshold for vertex/edge snapping (either Scene View UI or in preferences)DoneGet this to work with 2D stuffSnapping works with SpriteRenderers, needs more work for SpriteShape, etc