Similar to the Symmetry modifier, the Spline Mirror modifier duplicates a spline along a specified axis. Any present normals are also duplicated.
Procedures
To use the Spline Mirror modifier:
- Select a spline.
- On the
Modify panel > Modifier List, select Object-Space Modifiers > Spline Mirror.
The spline is automatically duplicated along the specified axis.A Rubin vase created by applying a Spline Mirror modifier onto an editable spline.
Interface
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Modifier Stack
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- Mirror
-
Represents the axis of the mirror effect. You can move, rotate or scale the gizmo to affect the mirroring as well as animate the transforms.
Spline Mirror rollout
- Show Knots
- Displays knots on the spline.
- Mirror Axis
- Sets the axis along which to mirror the spline: either X, Y, or Z.
- Size
- Sets the size of the mirror gizmo in the viewport.
- Slice Along Mirror
- When enabled, slices the portion of the spline that falls on the opposite side of the mirror so it is not reflected.
When the gizmo is outside the boundaries of a spline, the symmetrical reflection is still treated as part of the original shape.
- Flip
- Inverts the direction of symmetry.
- Weld Seam
- When enabled, welds the start and end knots from the original and reflected splines when they fall within the specified threshold.
- Threshold
- Sets the proximity threshold for welding knots.
- Use Tangents
- Keeps the tangents for retained knots.