---
title: "Alpha A"
url: "https://help.maxon.net/c4d/en-us/Content/html/XSLANUKEI-ID_NUKEI_ALPHA_A.html"
section_path: "Material Manager > Classic Materials > Classic material > Volumetric Shaders > Nukei Shader > Alpha A"
element_id: "XSLANUKEI"
group_id: "ID_NUKEI_ALPHA_A"
description: "The opacity for the surface. With Alpha, you can layer Nukei over other shaders and textures."
---

## Alpha A

### Opacity

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

The opacity for the surface. With Alpha, you can layer Nukei over other shaders and textures.