---
title: "Effector"
url: "https://help.maxon.net/c4d/en-us/Content/html/OEVOLUME-ID_MG_BASEEFFECTOR_GROUPEFFECTOR.html"
section_path: "MoGraph > Effectors > Volume > Effector"
element_id: "OEVOLUME"
group_id: "ID_MG_BASEEFFECTOR_GROUPEFFECTOR"
description: "Use this setting to adjust the overall strength of the effect. Values of less than 0% and greater than 100% can be entered."
---

## Effector

### Strength

Parameter ID: `ID_MG_BASEEFFECTOR_STRENGTH` · Range: [-∞..+∞%]

Use this setting to adjust the overall strength of the effect. Values of less than 0% and greater than 100% can be entered.

### Selection

Parameter ID: `ID_MG_BASEEFFECTOR_SELECTION`

![Image: 018406.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/018406.jpg)\
On the left, a Step effector is shown without selection; on the right, it is shown with a selection applied. A Step effector was chosen here as an example of selection; otherwise, selections work differently depending on the type of effector.

A [MoGraph Selection](https://help.maxon.net/c4d/en-us/Content/html/TMGSELECTION.html.md) or [MoGraph Weightmap](https://help.maxon.net/c4d/en-us/Content/html/TMGWEIGHT.html.md) tag can be dragged into this field or placed automatically by selecting a Cloner object and an existing MoGraph selection/weighting, and creating an Effector.

The Effector will then work as follows, depending on the tag’s settings:

- **MoGraph Selection** tag: Will only affect the clones belonging to the selection.
- **MoGraph Weightmap** tag: The clone weighting (values between 0% and 100%) saved in the tag will be multiplied with the effector strength.

![Image: subgroup.gif](https://help.maxon.net/c4d/en-us/Content/Resources/Images/subgroup.gif)\
Min/Max

### Maximum

Parameter ID: `ID_MG_BASEEFFECTOR_MAXSTRENGTH` · Range: [-∞..+∞%]

### Minimum

Parameter ID: `ID_MG_BASEEFFECTOR_MINSTRENGTH` · Range: [-∞..+∞%]

Use these settings to increase or decrease internal range values.

Note also the **Remapping** settings for the Layers in the Field list. Use this Field functionality as your preferred method since it’s more powerful and easier to understand in combination with other Layers.

### Volume Object

Parameter ID: `MGVOLUMEEFFECTOR_OBJECT`

Drag a closed object from the **Object Manager** into this field. The object volume will define which Clones the Effector should affect.