---
title: "drawMeshThreadgroups(threadgroupsPerGrid:threadsPerObjectThreadgroup:threadsPerMeshThreadgroup:)"
framework: metal
role: symbol
role_heading: Instance Method
path: "metal/mtl4rendercommandencoder/drawmeshthreadgroups(threadgroupspergrid:threadsperobjectthreadgroup:threadspermeshthreadgroup:)"
---

# drawMeshThreadgroups(threadgroupsPerGrid: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`: A doc://com.apple.metal/documentation/Metal/MTLSize instance that represents the number of threadgroups for each grid dimension.
- `threadsPerObjectThreadgroup`: A doc://com.apple.metal/documentation/Metal/MTLSize instance that represents the number of threads in an object shader threadgroup, if applicable.
- `threadsPerMeshThreadgroup`: A 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(threadsPerGrid:threadsPerObjectThreadgroup:threadsPerMeshThreadgroup:)](metal/mtl4rendercommandencoder/drawmeshthreads(threadspergrid:threadsperobjectthreadgroup:threadspermeshthreadgroup:).md)
- [drawMeshThreadgroups(indirectBuffer:threadsPerObjectThreadgroup:threadsPerMeshThreadgroup:)](metal/mtl4rendercommandencoder/drawmeshthreadgroups(indirectbuffer:threadsperobjectthreadgroup:threadspermeshthreadgroup:).md)