Smooth
Smooths a scalar volume with a blur of the chosen radius. Pick the kernel from the right-click menu, and add an optional mask to smooth only part of the volume.
[images/smooth-before-after.png]
Modes
Right-click the component to choose the kernel. All three are blurs over the same radius, so they share one set of inputs and you can switch between them without rewiring.
| Mode | What it does |
|---|---|
| Gaussian (default) | A weighted average that falls off with distance. The softest, most natural result for general smoothing. |
| Mean | An even average over the radius. Slightly stronger than Gaussian at the same radius. |
| Median | Takes the middle value of each neighbourhood. Removes speckle and isolated noise while keeping edges sharper. |
Inputs
| Name | Nick | Type | Default | Description |
|---|---|---|---|---|
| Scalar Volume | S | Scalar Volume | The input scalar volume. | |
| Radius | R | Number | 1 | Filter radius. |
| Maskoptional | M | Scalar Volume | Optional volume mask: where (and how strongly) the filter applies. Build it from a region or falloff field with 'From Field'. Unconnected = the filter applies everywhere. | |
| Mask Rangeoptional | Rg | Interval | 0 to 1 | Mask values mapped to 0..1 strength: at Min the filter is off, at Max it applies fully, blended in between. |
| Invertoptional | Iv | Boolean | False | Invert the mask, so the filter applies where it otherwise would not. |
Outputs
| Name | Nick | Type | Description |
|---|---|---|---|
| Scalar Volume | S | Scalar Volume | The output volume. |
Example definition
Smoothing the rim of a lens
The same lens blades, smoothed with a Gaussian kernel: the sharp rim softens by the filter radius.
Try
- Drag Radius to smooth more or less.
- Switch to Median from the right-click menu to remove speckle while keeping edges.
- Change a for the rim radius, t for the thickness at the centre and n for the number of blades.
Download smooth.gh4 KB · Rhino 8 · Morphé 1.0
Smoothing only part of a volume
Build the mask from a region or falloff field with 
Scalar Volume From Field, then wire it into Mask. Use Mask Range to set where the effect starts and reaches full strength, so it fades in rather than stopping at a hard edge.
Tips
- Heavy smoothing needs room to grow into. If large radii look clipped, raise
Bandwidthon the component that created the volume (default 3 voxels). - For curvature-driven smoothing, try
Relax. For rounding sharp edges, use 
Fillet.
Vector volumes
Vector volumes have their own 
Smooth component in panel 4, with Mean and Gaussian modes.
Related components
Written for Morphé 1.0 · Rhino 8