---
title: "drawMeshThreadgroups(_:threadsPerObjectThreadgroup:threadsPerMeshThreadgroup:)"
framework: metal
role: symbol
role_heading: Instance Method
path: "metal/mtlrendercommandencoder/drawmeshthreadgroups(_:threadsperobjectthreadgroup:threadspermeshthreadgroup:)"
---

# drawMeshThreadgroups(_:threadsPerObjectThreadgroup:threadsPerMeshThreadgroup:)

Encodes a draw command that invokes a mesh shader and, optionally, an object shader with a grid of threadgroups.

## Declaration

```swift
func drawMeshThreadgroups(_ threadgroupsPerGrid: MTLSize, threadsPerObjectThreadgroup: MTLSize, threadsPerMeshThreadgroup: MTLSize)
```

## Parameters

- `threadgroupsPerGrid`: An doc://com.apple.metal/documentation/Metal/MTLSize instance that represents the number of threadgroups for each grid dimension.
- `threadsPerObjectThreadgroup`: An doc://com.apple.metal/documentation/Metal/MTLSize instance that represents the number of threads in an object shader threadgroup, if applicable.
- `threadsPerMeshThreadgroup`: An doc://com.apple.metal/documentation/Metal/MTLSize instance that represents the number of threads in a mesh shader threadgroup.

## See Also

### Drawing with meshes

- [drawMeshThreads(_:threadsPerObjectThreadgroup:threadsPerMeshThreadgroup:)](metal/mtlrendercommandencoder/drawmeshthreads(_:threadsperobjectthreadgroup:threadspermeshthreadgroup:).md)
- [drawMeshThreadgroups(indirectBuffer:indirectBufferOffset:threadsPerObjectThreadgroup:threadsPerMeshThreadgroup:)](metal/mtlrendercommandencoder/drawmeshthreadgroups(indirectbuffer:indirectbufferoffset:threadsperobjectthreadgroup:threadspermeshthreadgroup:).md)