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# Roughness

**Roughness** defines how light reflects from your **Material**. This can be done with the **Roughness factor** or a **Grayscaled texture**

**Roughness factor** adjusts the roughness between 1 (100% rough/0% glossy) and 0 (0% rough/100% glossy). 

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/screenshot-2022-11-25-at-13504_3bydga.png)

With a **Grayscaled texture**, the factor is assigned based on the colour. Black parts are listed as 0 (0% rough/100% glossy) and white as 1 (100% rough/0% glossy). 

![](https://storage.crisp.chat/users/helpdesk/website/cae6f284ce714800/screenshot-2022-11-25-at-13515_113vftn.png)