---
title: LowLevelMaterialParameterMapping
framework: realitykit
role: symbol
role_heading: Structure
path: realitykit/lowlevelmaterialparametermapping
---

# LowLevelMaterialParameterMapping

A mapping of named buffer and texture parameters to binding indices for a compiled shader function.

## Declaration

```swift
struct LowLevelMaterialParameterMapping
```

## Overview

Overview Use the bufferLocation(named:), constantLocation(named:), and textureLocation(named:) methods to look up the binding indices for named parameters by name, so that argument table slots can be set correctly at runtime.

## Topics

### Accessing parameter mappings

- [buffers](realitykit/lowlevelmaterialparametermapping/buffers.md)
- [LowLevelMaterialParameterMapping.Buffer](realitykit/lowlevelmaterialparametermapping/buffer.md)
- [LowLevelMaterialParameterMapping.BufferParameter](realitykit/lowlevelmaterialparametermapping/bufferparameter.md)
- [textures](realitykit/lowlevelmaterialparametermapping/textures.md)
- [LowLevelMaterialParameterMapping.TextureParameter](realitykit/lowlevelmaterialparametermapping/textureparameter.md)
- [LowLevelMaterialParameterMapping.ConstantParameter](realitykit/lowlevelmaterialparametermapping/constantparameter.md)

### Locating parameters

- [bufferLocation(named:)](realitykit/lowlevelmaterialparametermapping/bufferlocation(named:).md)
- [textureLocation(named:)](realitykit/lowlevelmaterialparametermapping/texturelocation(named:).md)
- [constantLocation(named:)](realitykit/lowlevelmaterialparametermapping/constantlocation(named:).md)
- [LowLevelMaterialParameterMapping.ConstantLocation](realitykit/lowlevelmaterialparametermapping/constantlocation.md)

## Relationships

### Conforms To

- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Pipeline and render targets

- [LowLevelRenderPipelineState](realitykit/lowlevelrenderpipelinestate.md)
- [LowLevelRenderTarget](realitykit/lowlevelrendertarget.md)
- [LowLevelArgumentTable](realitykit/lowlevelargumenttable.md)