Code/Engine/RendererCore/Pipeline/Implementation/Passes/BlurPass.cpp - dev - redgpu/ezEngine

Code/Engine/RendererCore/Pipeline/Implementation/Passes/BlurPass.cpp
113 строк4 KB
Sanakan8472
Render Graph (#1948)
03 июн 2026, 10:19
03 июн 2026, 10:1960bb12c
#include <RendererCore/RendererCorePCH.h>

#include <Foundation/IO/TypeVersionContext.h>
#include <RendererCore/Pipeline/Passes/BlurPass.h>
#include <RendererCore/Pipeline/View.h>
#include <RendererCore/RenderContext/RenderContext.h>

#include <Core/Graphics/Geometry.h>
#include <RendererCore/../../../Data/Base/Shaders/Pipeline/BlurConstants.h>

// clang-format off
EZ_BEGIN_DYNAMIC_REFLECTED_TYPE(ezBlurPass, 1, ezRTTIDefaultAllocator<ezBlurPass>)
{
  EZ_BEGIN_PROPERTIES
  {
    EZ_MEMBER_PROPERTY("Input", m_PinInput),
    EZ_MEMBER_PROPERTY("Output", m_PinOutput),
    EZ_ACCESSOR_PROPERTY("Radius", GetRadius, SetRadius)->AddAttributes(new ezDefaultValueAttribute(15)),
  }
  EZ_END_PROPERTIES;
  EZ_BEGIN_ATTRIBUTES
  {
    new ezCategoryAttribute("Utilities")
  }
  EZ_END_ATTRIBUTES;
}
EZ_END_DYNAMIC_REFLECTED_TYPE;
// clang-format on

ezBlurPass::ezBlurPass()
  : ezRenderPipelinePass("BlurPass")

{
  {
    // Load shader.
    m_hShader = ezResourceManager::LoadResource<ezShaderResource>("Shaders/Pipeline/Blur.ezShader");
    EZ_ASSERT_DEV(m_hShader.IsValid(), "Could not load blur shader!");
  }

  {
    m_hBlurCB = ezRenderContext::CreateConstantBufferStorage<ezBlurConstants>();
  }
}

ezBlurPass::~ezBlurPass()
{
  ezRenderContext::DeleteConstantBufferStorage(m_hBlurCB);
}

ezStatus ezBlurPass::AddRenderPasses(const ezViewData& viewData, const ezCamera& camera, ezRenderGraph& ref_graph, const ezArrayPtr<const ezRenderPipelinePinConnection> inputs, ezArrayPtr<ezRenderPipelinePinConnection> outputs)
{
  ezRenderGraphTextureHandle hInput = inputs[m_PinInput.m_uiInputIndex].m_TextureHandle;
  if (hInput.IsInvalidated())
    return ezStatus(ezFmt("Input: Not connected"));

  const ezGALTextureCreationDescription inputDesc = ref_graph.GetTextureDesc(hInput);
  ezRenderGraphTextureHandle hOutput = ref_graph.CreateTexture(inputDesc);
  outputs[m_PinOutput.m_uiOutputIndex].m_TextureHandle = hOutput;

  auto pass = ref_graph.AddGraphicsPass("Blur");
  pass.AddColorTarget(hOutput, {}, ezGALRenderTargetLoadOp::Clear);
  pass.SetClearColor(0, ezColor(1.0f, 0.0f, 0.0f));
  pass.ReadTexture(hInput, {}, ezGALResourceState::ShaderResource, ezGALShaderStageFlags::PixelShader);
  pass.SetStereoscopic(camera.IsStereoscopic());
  pass.SetExecuteCallback([=](const ezRenderGraphContext& ctx)
    {
    const ezRenderViewContext& renderViewContext = *ctx.GetUserData<ezRenderViewContext>();
    renderViewContext.UpdateViewport();

    renderViewContext.m_pRenderContext->BindShader(m_hShader);
    renderViewContext.m_pRenderContext->BindNullMeshBuffer(ezGALPrimitiveTopology::Triangles, 1);

    ezBindGroupBuilder& bindGroup = renderViewContext.m_pRenderContext->GetBindGroup();
    bindGroup.BindTexture("Input", ctx.ResolveTexture(hInput));
    bindGroup.BindBuffer("ezBlurConstants", m_hBlurCB);

    renderViewContext.m_pRenderContext->DrawMeshBuffer().IgnoreResult(); });

  return EZ_SUCCESS;
}

ezResult ezBlurPass::Serialize(ezStreamWriter& inout_stream) const
{
  EZ_SUCCEED_OR_RETURN(SUPER::Serialize(inout_stream));
  inout_stream << m_iRadius;
  return EZ_SUCCESS;
}

ezResult ezBlurPass::Deserialize(ezStreamReader& inout_stream)
{
  EZ_SUCCEED_OR_RETURN(SUPER::Deserialize(inout_stream));
  const ezUInt32 uiVersion = ezTypeVersionReadContext::GetContext()->GetTypeVersion(GetStaticRTTI());
  EZ_IGNORE_UNUSED(uiVersion);
  inout_stream >> m_iRadius;
  return EZ_SUCCESS;
}

void ezBlurPass::SetRadius(ezInt32 iRadius)
{
  m_iRadius = iRadius;

  ezBlurConstants* cb = ezRenderContext::GetConstantBufferData<ezBlurConstants>(m_hBlurCB);
  cb->BlurRadius = m_iRadius;
}

ezInt32 ezBlurPass::GetRadius() const
{
  return m_iRadius;
}



EZ_STATICLINK_FILE(RendererCore, RendererCore_Pipeline_Implementation_Passes_BlurPass);