---
title: "Alpha B"
url: "https://help.maxon.net/c4d/en-us/Content/html/XSLANUKEI-ID_NUKEI_ALPHA_B.html"
section_path: "Material Manager > Classic Materials > Classic material > Volumetric Shaders > Nukei Shader > Alpha B"
element_id: "XSLANUKEI"
group_id: "ID_NUKEI_ALPHA_B"
---

## Alpha B

### Opacity

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