---
title: "Surface Scattering Tab"
canonical: "https://documentation.chaos.com/space/VC4D/116857056/Surface%20Scattering%20Tab"
format: markdown
---
The Surface Scattering Tab is part of the Chaos Scatter parameters.


## **Surface Scattering**

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> Macro (panel)
> 
> The settings available are different depending on the **Distribution mode**.


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### Random


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### Uv


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## **Slope**

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> Macro (anchor)



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### Example: Slope

The Slope effect removes scattered objects depending on the angle of the underlying geometry. Slope can be used to remove objects from steep areas and shallow areas, using the **From** and **To** parameters.

![image](media://6d182281-d73b-4dbd-a285-40e7dba3b42d)

**Slope From** = 5° **Slope To** = 20°



> Macro (anchor)



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### Example: Slope Up mode

The Local Up mode takes the normals of the **Distribute On** object and uses them to determine which way is up. In this example, the **Slope **is set **From** 0° **To** 45°.



## **Altitude**

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> Macro (anchor)



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### Example: Altitude

In this example, the **Altitude **and the **Altitude Falloff** parameters are showcased. Setting the Altitude **To** parameter to 50000cm (500m) cuts off the scattered forest at that height. Adding Falloff thins out the forest at the lower point of the curve.

![image](media://f229f866-a428-4204-9c33-1d9769bee3cb)

**Altitude Falloff** = decreasing curve