Using the Inspector
The parametric shape Inspector — shape type grid, parameter rows, locking, ratio toggles, and the material, hotspot and collider options.
Selecting a parametric shape shows the Parametric Shape panel in the Inspector.
The panel always carries this reminder at the top:
Parameters drive the mesh. Changing a parameter regenerates the shape and discards manual mesh edits.
Shape Type
A button grid for switching the shape type. Switching keeps the GameObject and its transform and rebuilds only the form. The categories are:
| Category | Shapes |
|---|---|
| Primitives | Box, Sphere, Icosphere, Cylinder, Capsule, Cone, Regular Polyhedron, Wedge, Superellipsoid, Gear |
| Tubes | Torus, Pipe |
| Architecture | Room, Stair, Spiral Stair, Arch, Dome |
| Surfaces | NURBS Surface, Quad Strip, N-gon |
| Layout | Layout |
| Text | 3D Text |
Whether the buttons show icons, names or both is set by the Shape Menu Type preference.
Parameter rows
Only the parameters used by the current shape type are shown. Per-type lists and ranges are collected in Shape Types and Parameters.
- Float parameters — an input field clamped to its range. Dragging the label left and right also changes the value.
- Int parameters — a slider plus a number field.
- Angle parameters — a gauge-style slider (for example Spiral Stair's Sweep Angle, Gear's Pressure Angle).
Selecting several shapes edits their shared parameters together. When the selected shapes are of different types, the full parameter set is shown and each shape applies only the parameters it uses.
Locking a parameter
The padlock icon at the right of each parameter row locks that value.
A locked value is kept instead of being reset when the shape is redrawn in Draw mode. Use it for values such as step height or wall thickness that should survive a redraw.
Absolute size (m) / ratio (%) toggle
Size parameter rows carry an m ↔ % toggle. Switched to %, the value is read as a ratio of the parent bounds — a Height of 0.5 in % mode means half the parent's height.
The All % / All m buttons switch every size parameter at once. See Pivot and Anchoring for the full rules.
Options
Depending on the shape type, these options appear as well.
| Option | Shapes | Description |
|---|---|---|
| Polyhedron Type | Regular Polyhedron | Tetrahedron / Hexahedron / Octahedron / Dodecahedron / Icosahedron |
| Counter Clockwise | Spiral Stair | Spiral counter-clockwise as it climbs. |
| Closed Loop | Quad Strip | Join the start and end of the curve into a closed loop. |
| Curved | N-gon | Use a closed curved contour through the control points. |
| Collider Mode | All | Hide the renderable and let a collider represent the shape. |
| Text / Font | 3D Text | The string to render and its font. Leave the font empty to use the default. |
Collider Mode
With Collider Mode on, the shape is represented by a collider instead of a rendered mesh.
- Box, Sphere, Icosphere, Capsule and Layout use Unity primitive colliders without building a mesh at all.
- Every other type builds its mesh and exposes it through a
MeshCollider.
Collider dimensions stay in sync with the parameters, and isTrigger / convex settings are preserved. Use it to drive trigger volumes or collision-only geometry from parameters.
Material and Hotspot
| Field | Description |
|---|---|
| Material | The material to apply. Leave it empty to keep the existing material. |
| Hotspot | A hotspot layout asset to fit UVs to. When set, every face is fitted to the hotspot rects instead of the default procedural unwrap. |
Editing control points
NURBS Surface, Quad Strip and N-gon (Curved) are shaped by Scene view control points (CPs) rather than size handles.
| Input | Result |
|---|---|
| Drag a CP sphere | Free screen-space movement. Grabbing a CP that is part of the selection moves the whole selection. |
| Gizmo at the selection center | Drag an axis or plane to move the whole selection (same as Unity's move gizmo). |
| Drag in empty space | Rectangular range selection (Shift to add, Ctrl / Cmd to toggle) |
| Click in empty space | Clear the selection |
The Inspector also shows:
- Selected Point Weight (NURBS Surface) — the rational weight of the selected control point
- Reset Control Points / Reset Points — return the control points to their initial flat or straight arrangement
Buttons at the bottom
| Button | Action |
|---|---|
| Rebuild Shape | Rebuild the mesh immediately from the current parameters. |
| Remove Shape Parameters | Keep the current mesh and remove only the parametric component. |
| Convert to Editable Mesh | Convert to a UModeler X editable mesh. |
These are covered in Converting and Prefabs.