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# D3D12_BUFFER_BARRIER (XBOX Series consoles)

> Describes a buffer memory access barrier. Used by buffer barriers to indicate when resource memory must be made visible for a specific access type.

Describes a buffer memory access barrier. Used by buffer barriers to indicate when resource memory must be made visible for a specific access type.

## Syntax

```cpp theme={null}
typedef struct D3D12_BUFFER_BARRIER
{
    D3D12_BARRIER_SYNC SyncBefore;
    D3D12_BARRIER_SYNC SyncAfter;
    D3D12_BARRIER_ACCESS AccessBefore;
    D3D12_BARRIER_ACCESS AccessAfter;
    ID3D12Resource  pResource;
    UINT64 Offset;
    UINT64 Size;
} D3D12_BUFFER_BARRIER
```

### Members

*SyncBefore*\
Type: D3D12\_BARRIER\_SYNC

Synchronization scope of all preceding GPU work that must be completed before executing the barrier.

*SyncAfter*\
Type: D3D12\_BARRIER\_SYNC

Synchronization scope of all subsequent GPU work that must wait until the barrier execution is finished.

*AccessBefore*\
Type: D3D12\_BARRIER\_ACCESS

Access bits corresponding with resource usage since the preceding barrier, or the start of **ExecuteCommandLists** scope.

*AccessAfter*\
Type: D3D12\_BARRIER\_ACCESS

Access bits corresponding with resource usage after the barrier completes.

*pResource*\
Type: ID3D12Resource \*

Pointer to the buffer resource being using the barrier.

*Offset*\
Type: UINT64

Must be 0.

*Size*\
Type: UINT64

Must be either **UINT64\_MAX** or the size of the buffer in bytes.

## Remarks

## Requirements

**Header:** d3d12\_xs.h\
**Library:** d3d12\_xs.lib\
**Supported Platforms**: XBOX Series consoles

## See Also


## Related topics

- [D3D12_BARRIER_GROUP (XBOX Series consoles)](/reference/graphics/d3d12/structs/d3d12_barrier_group_public.md)
- [D3D12_GLOBAL_BARRIER (XBOX Series consoles)](/reference/graphics/d3d12/structs/d3d12_global_barrier_public.md)
- [D3D12_TEXTURE_BARRIER (XBOX Series consoles)](/reference/graphics/d3d12/structs/d3d12_texture_barrier_public.md)
- [D3D12_BARRIER_SUBRESOURCE_RANGE (XBOX Series consoles)](/reference/graphics/d3d12/structs/d3d12_barrier_subresource_range_public.md)
- [D3D12_WAVE_MMA_TIER (XBOX Series consoles)](/reference/graphics/d3d12_xs/enums/d3d12_wave_mma_tier_xs.md)