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# LowLevelArgumentTable

A table of buffer slices and textures bound to a single shader function.

```
final class LowLevelArgumentTable
```

## Overview

A `LowLevelArgumentTable` binds a set of `LowLevelBufferSlice` and
`LowLevelTextureResource` objects at indexed slots. Its layout is described by an
`LowLevelArgumentTable.Descriptor` that must match the `argumentTableDescriptor` on
the corresponding material function.

Create a `LowLevelArgumentTable` using
[`makeArgumentTable(descriptor:buffers:textures:)`](/documentation/RealityKit/LowLevelRenderContext/makeArgumentTable(descriptor:buffers:textures:)).

## Topics

### Inspecting the table

[`var descriptor: LowLevelArgumentTable.Descriptor`](/documentation/RealityKit/LowLevelArgumentTable/descriptor-swift.property)

The descriptor that describes the buffer and texture slots of this argument table.

[`struct Descriptor`](/documentation/RealityKit/LowLevelArgumentTable/Descriptor-swift.struct)

The buffer and texture slot configuration for an argument table.

### Accessing textures

[`func texture(at: Int) -> LowLevelTextureResource?`](/documentation/RealityKit/LowLevelArgumentTable/texture(at:))

Returns the texture bound at the given index, or `nil` if the slot is unset.

[`func setTexture(LowLevelTextureResource, at: Int) throws(LowLevelRenderContextError)`](/documentation/RealityKit/LowLevelArgumentTable/setTexture(_:at:))

Binds a texture to the slot at the given index.

### Accessing buffer slices

[`func bufferSlice(at: Int) -> LowLevelBufferSlice?`](/documentation/RealityKit/LowLevelArgumentTable/bufferSlice(at:))

Returns the buffer slice bound at the given index, or `nil` if the slot is unset.

[`func setBufferSlice(LowLevelBufferSlice, at: Int) throws(LowLevelRenderContextError)`](/documentation/RealityKit/LowLevelArgumentTable/setBufferSlice(_:at:))

Binds a buffer slice to the slot at the given index.


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