---
title: "Advanced"
url: "https://help.maxon.net/c4d/en-us/Content/html/COM_ROCKETLASSO_NEUTRON_ASSET_MODIFIER_SWIRL-IN_YZW8LN7BC58JHZEZYBYQT_.html"
section_path: "The Node Editor > The individual Assets > Geo Modifier > Swirl > Advanced"
element_id: "COM_ROCKETLASSO_NEUTRON_ASSET_MODIFIER_SWIRL"
group_id: "IN_YZW8LN7BC58JHZEZYBYQT_"
description: "This allows the central area of the deformation, which lies around the Y-axis of the deformation, to be flattened. This creates a circular plateau whose …"
---

## Advanced

### Inner Radius

Parameter ID: `IN_CFZVCAMIHP1LYVHOYM8LTY` · Range: [0..+∞m]

This allows the central area of the deformation, which lies around the Y-axis of the deformation, to be flattened. This creates a circular plateau whose height corresponds to the **Ridges** value. As the radius increases, the start of the twisting deformation is also shifted further and further outwards.

![Image: 2023-2_node_swirl_adv_inner_radius.png](https://help.maxon.net/c4d/en-us/Content/Resources/Images/2023-2_node_swirl_adv_inner_radius.png)\
From left to right, here you can see the effect of an increasing value for the Inner Radius.

### Fade

Parameter ID: `IN_ECGWLKWOBFASSGUQ0RXU4O` · Range: [0..+∞m]

This value can be used to flatten the transition to the amplitude valleys. In extreme cases, it then appears as if the valleys have been filled in.

![Image: 2023-2_node_swirl_adv_fade.png](https://help.maxon.net/c4d/en-us/Content/Resources/Images/2023-2_node_swirl_adv_fade.png)\
Increasing Fade values from left to right ensure that the valleys in the deformation are filled.

### Bias

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

You can use this value to control where the majority of the twist angle is to be calculated. With negative values, the majority of the twist is generated in the immediate vicinity of the Y-axis of the deformation matrix, i.e. in the center of the deformation. With high positive values, on the other hand, the center of the deformation remains almost free of twists and the twists mainly take place in the outer area of the deformation.

![Image: 2023-2_node_swirl_adv_swirl_bias.png](https://help.maxon.net/c4d/en-us/Content/Resources/Images/2023-2_node_swirl_adv_swirl_bias.png)\
From left to right, the effect of decreasing bias values is documented here, starting with a high positive value in the left image. The twisting deformation is thus concentrated on the outer area. On the right, a strongly negative value was used. The twisting is concentrated on the center of the deformation.

### Smooth

Parameter ID: `IN_MRIUCZVMMPFIPH3JWGWJKT` · Range: [-∞..+∞%]

This can be used to compensate for the differences in twist intensity added by the **Swirl Bias**.

![Image: 2023-2_node_swirl_adv_swirl_smooth.png](https://help.maxon.net/c4d/en-us/Content/Resources/Images/2023-2_node_swirl_adv_swirl_smooth.png)\
This series of images uses a Swirl Bias value of 100% throughout, which concentrates the twists on the outer area of the deformation (see left image). By increasing the smoothing value, this imbalance can be compensated until a uniform twist is finally achieved over the entire deformation area (see far right image).

### Bias

Parameter ID: `IN_W2SZ_KHHFTWO299S2ZDVU3` · Range: [-∞..+∞%]

This setting is only available if a **Height** value other than 0 is used. The **Height Bias** value can then control how the height shift decreases towards the edge of the area of influence. Negative values restrict the height shift to the center of the deformation. Values above 0% lead to a more dome-shaped distribution of the height shift.

![Image: 2023-2_node_swirl_adv_height_bias.png](https://help.maxon.net/c4d/en-us/Content/Resources/Images/2023-2_node_swirl_adv_height_bias.png)\
A height bias of -100% was used on the left, a height bias of 0% in the middle and a height bias value of 100% on the right. For negative values, the height shift only occurs near the Y-axis and then decreases steeply in intensity. For positive values, the height shift is dome-shaped, which can lead to a hard transition at the edge of the deformation.

### Smooth

Parameter ID: `IN_J4NWCNE1DB6TCMCTJ2BQL3` · Range: [-∞..+∞%]

This setting is only available if a **Height** value not equal to 0 is used. The intensity difference of the height shift (see **Height** value) between the center and the edge of the deformation can then be smoothed out. The decrease curve of the height shift shifted by the **Height Bias** value can thus be balanced out again.

### Bias

Parameter ID: `IN_GUCKL4D8P5ZIDOJTIAQ3UW` · Range: [-∞..+∞%]

This setting is only available if a **Pull** value other than 0 is used. The deformation decrease curve selected via **Pull** can be amplified or attenuated here.

![Image: 2023-2_node_swirl_adv_pull_bias.png](https://help.maxon.net/c4d/en-us/Content/Resources/Images/2023-2_node_swirl_adv_pull_bias.png)\
In this example, a Pull value of -100% is used. The image series starts on the left with a Pull Bias value of -100% and ends on the right with a Pull Bias of +100%.

### Smooth

Parameter ID: `IN_TXCKE9_XIT6I8EFUG_O1BX` · Range: [-∞..+∞%]

This setting is only available if a **Pull** value other than 0 is used. Increasing this value results in an equalization of the changes to the **Pull** falloff curve implemented by the **Pull Bias**.

### Ridge Shape

Parameter ID: `IN_C3MZ_2PSPRFUG_G_JCRCSS` · Range: [-∞..+∞%]

This can be used to change the cross-section of the highs and lows (the amplitudes). Negative values lead to concave and positive values to convex shapes.

![Image: 2023-2_node_swirl_adv_ridge_shape.png](https://help.maxon.net/c4d/en-us/Content/Resources/Images/2023-2_node_swirl_adv_ridge_shape.png)\
On the left -100%, in the middle 5% and on the right 100% was used for Ridge Shape.

### Smooth Shape

Parameter ID: `IN_UZB6REEDBHENVKK2VW_FAV` · Range: [-∞..+∞%]

This smoothes the cross-section of the highs and lows. The shape selected via the **Ridge Shape** is thus softened and rounded.

### Bias Height

Parameter ID: `IN_LPMPAAQ_ML1LCDGDHOJXVS` · Range: [-∞..+∞%]

The amplitude of the highs and lows can be influenced in their decrease towards the edge of the deformation. With negative **Bias Height** values, the amplitude decreases faster from the center and the outer area of the deformation remains relatively flat. With positive **Bias Height** values, the amplitude remains constant for longer and then only decreases abruptly at the outer edge of the deformation.

![Image: 2023-2_node_swirl_adv_ridges_bias_height.png](https://help.maxon.net/c4d/en-us/Content/Resources/Images/2023-2_node_swirl_adv_ridges_bias_height.png)\
On the left -100%, in the middle 0% and on the right 100% was used for Ridges Bias Height.

### Smooth Height

Parameter ID: `IN_CJ39P28FKXJN2GFTQMUFJX` · Range: [-∞..+∞%]

This can be used to smooth the decrease curve of the highs and lows. This reduces the effect of the **Bias Heigh**t setting.