---
title: "Options"
url: "https://help.maxon.net/c4d/en-us/Content/html/TOOLHAIRSOFTSELECTION-MDATA_MAINGROUP.html"
section_path: "Simulate Menu > The Simulation System > Hair > Tools, Functions, Modes > Soft Selection > Options"
element_id: "TOOLHAIRSOFTSELECTION"
group_id: "MDATA_MAINGROUP"
command_id: "1018123"
description: "If this setting is not active, a hard selection will be made, i.e., only those elements that lie within the radius of a given tool will be selected for …"
---

## Options

### Soft Selection

Parameter ID: `HAIR_SOFTSELECTION`

If this setting is not active, a hard selection will be made, i.e., only those elements that lie within the radius of a given tool will be selected for editing.

### Preview

Parameter ID: `HAIR_SOFTSELECTION_PREVIEW`

Enable this option to display the Soft-Selection in the Viewport.

### Tweak

Parameter ID: `HAIR_SOFTSELECTION_TWEAK`

This setting has nothing to do with the selection tools. It is meant for use in conjunction with most interactive tools for rotation, straightening, moving, curling, etc. – tools that use a soft selection in close proximity around the cursor, independent of any existing selection.

### Visible

Parameter ID: `HAIR_SOFTSELECTION_VISIBLE`

If this setting is active, **Tweak** will only work with visible guide elements.

### Type

Parameter ID: `HAIR_SOFTSELECTION_TYPE`

Use this setting to define how the falloff should be calculated. You can choose from the following options:

Guide

The falloff will only be calculated per guide, over its length.

Volume

The falloff will be calculated volumetrically around the selected guide points.

Roots

The falloff will be calculated around the roots of the selected guides, and calculated based on these roots, i.e., not matter where the guides lie, the roots (including the entire guide) that lie within the falloff radius will be selected using a single strength value.

### Coords

Parameter ID: `HAIR_SOFTSELECTION_SPACE`

Use this setting to define the dimension of the falloff radius:

World

The positions of the guide points will be used.

Screen

The guide points within a specified pixel radius will be selected.

### Radius

Parameter ID: `HAIR_SOFTSELECTION_RADIUS` · Range: [0..+∞m]

This is the distance from the selection within which the falloff will have an effect. If a value of 0 is entered, a hard selection will be made, i.e., only those guide elements within the radius of the selection tool will be selected. As soon as you increase the **Radius** setting, the selection will be expanded in accordance with the falloff settings.

### Strength

Parameter ID: `HAIR_SOFTSELECTION_STRENGTH` · Range: [0..100%]

This is the strength with which the weighted (soft) selection will be applied. A setting of 0 will result in a hard selection (see previous **Radius** setting).

### Clip

Parameter ID: `HAIR_SOFTSELECTION_CLIP`

Since the falloff is calculated from each guide point outwards, it can occur that some points receive a weighting of more than 100%. If **Clip** is active, the weighting will be limited to a maximum 100%.

### Falloff

Parameter ID: `HAIR_SOFTSELECTION_FALLOFF`

Use this setting to select how the falloff should be calculated from the **Radius** of the selection tool to the **Radius** of the soft selection. A depiction of the falloff function can be found [here](https://help.maxon.net/c4d/en-us/Content/html/5604.html.md).

### Width

Parameter ID: `HAIR_SOFTSELECTION_WIDTH` · Range: [0..100%]

**Width** defines for the **Dome**, **Bell** and **Needle** options how softly or hard the effect should abate within the radius of the tool.

### Falloff Curve

Parameter ID: `HAIR_SOFTSELECTION_FALLOFF_CURVE`

If **Spline** is selected, the Falloff Curve can be used to create a custom falloff.