---
title: shaderValidation
framework: Metal
role: symbol
role_heading: Instance Property
platforms: [iOS 18.0+, iPadOS 18.0+, Mac Catalyst 18.0+, macOS 15.0+, tvOS 18.0+, visionOS 2.0+]
path: metal/mtlrenderpipelinedescriptor/4354231-shadervalidation
---

# shaderValidation

A value that enables or disables shader validation for the pipeline.

## Declaration

```swift
var shaderValidation: MTLShaderValidation { get set }
```

## Discussion

You can override the value using either of these environment variables: `MTL_SHADER_VALIDATION_ENABLE_PIPELINES` or `MTL_SHADER_VALIDATION_DISABLE_PIPELINES.`