// d3d12umddi.h

PFND3D12DDI_BEGIN_RENDER_PASS Pfnd3d12ddiBeginRenderPass;

VOID Pfnd3d12ddiBeginRenderPass(
  D3D12DDI_HCOMMANDLIST unnamedParam1,
  UINT NumRenderTargets,
  const D3D12DDIARG_RENDER_PASS_RENDER_TARGET_DESC *pRenderTargets,
  const D3D12DDIARG_RENDER_PASS_DEPTH_STENCIL_DESC *pDepthStencil,
  D3D12DDIARG_RENDER_PASS_UAV_ACCESS_FLAGS UnorderedAccessViewAccessFlags
)
{...}
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Windows Driver Kit DDI reference (nc-d3d12umddi-pfnd3d12ddi_begin_render_pass)

PFND3D12DDI_BEGIN_RENDER_PASS callback function

Description

This version of the user-mode display driver's (UMD) pfnBeginRenderPass callback function marks the start of a render pass.

Parameters

`unnamedParam1`

[in] A D3D12DDI_HCOMMANDLIST handle through which to reference the command list.

`NumRenderTargets`

[in/optional] The number of rendering targets that pRenderTargets points to.

`pRenderTargets`

[in/optional] Pointer to a D3D12DDIARG_RENDER_PASS_RENDER_TARGET_DESC structure that describes the render target.

`pDepthStencil`

[in/optional] Pointer to a D3D12DDIARG_RENDER_PASS_DEPTH_STENCIL_DESC structure that describes the render pass depth stencil.

`UnorderedAccessViewAccessFlags`

[in] An unordered access view (UAV), defined by a value in the D3D12DDIARG_RENDER_PASS_UAV_ACCESS_FLAGS enumeration.

Remarks

For the extended render passes feature, the PFND3D12DDI_BEGIN_RENDER_PASS_0053 function is called instead.

The caller of pfnBeginRenderPass must provide all Resources that the user declared. These resources can be one or both of the following:

Serving as RTVs (Render Target View) or DSVs (Data Source View) within that Render Pass.
Resuming from a previous Render Pass, via a SUSPEND/RESUME pair.

The D3D12DDI_RENDER_PASS_BEGINNING_ACCESS_TYPE and D3D12DDI_RENDER_PASS_ENDING_ACCESS_TYPE enumerations must both be provided for all resources when calling this callback.

PFND3D12DDI_BEGIN_RENDER_PASS - NtDoc