Code/Engine/RendererCore/Pipeline/Passes/AOPass.h - dev - redgpu/ezEngine

Code/Engine/RendererCore/Pipeline/Passes/AOPass.h
67 строк2 KB
Sanakan8472
Render Graph (#1948)
03 июн 2026, 10:19
03 июн 2026, 10:1960bb12c
#pragma once

#include <RendererCore/Declarations.h>
#include <RendererCore/Pipeline/RenderPipelinePass.h>
#include <RendererCore/Shader/ConstantBufferStorage.h>
#include <RendererCore/Shader/ShaderResource.h>

/// Render pass that computes screen-space ambient occlusion (SSAO).
///
/// Generates an ambient occlusion texture from the depth buffer. The effect darkens areas
/// where geometry is close together, simulating indirect lighting occlusion. Supports distance-based
/// fade-out and various quality parameters.
class EZ_RENDERERCORE_DLL ezAOPass : public ezRenderPipelinePass
{
  EZ_ADD_DYNAMIC_REFLECTION(ezAOPass, ezRenderPipelinePass);

public:
  ezAOPass();
  ~ezAOPass();

  virtual ezStatus AddRenderPasses(const ezViewData& viewData, const ezCamera& camera, ezRenderGraph& ref_graph, const ezArrayPtr<const ezRenderPipelinePinConnection> inputs, ezArrayPtr<ezRenderPipelinePinConnection> outputs) override;
  virtual ezStatus AddRenderPassesInactive(const ezViewData& viewData, const ezCamera& camera, ezRenderGraph& ref_graph, const ezArrayPtr<const ezRenderPipelinePinConnection> inputs, ezArrayPtr<ezRenderPipelinePinConnection> outputs) override;

  virtual ezResult Serialize(ezStreamWriter& inout_stream) const override;
  virtual ezResult Deserialize(ezStreamReader& inout_stream) override;

  void SetFadeOutStart(float fStart);
  float GetFadeOutStart() const;

  void SetFadeOutEnd(float fEnd);
  float GetFadeOutEnd() const;

protected:
  void CreateSamplerState();

  ezRenderPipelineNodeInputPin m_PinDepthInput;
  ezRenderPipelineNodeOutputPin m_PinOutput;

  float m_fRadius = 1.0f;
  float m_fMaxScreenSpaceRadius = 1.0f;
  float m_fContrast = 2.0f;
  float m_fIntensity = 0.7f;

  float m_fFadeOutStart = 80.0f;
  float m_fFadeOutEnd = 100.0f;

  float m_fPositionBias = 5.0f;
  float m_fMipLevelScale = 10.0f;
  float m_fDepthBlurThreshold = 2.0f;

  ezConstantBufferStorageHandle m_hDownscaleConstantBuffer;
  ezConstantBufferStorageHandle m_hSSAOConstantBuffer;

  ezTexture2DResourceHandle m_hNoiseTexture;

  ezGALSamplerStateHandle m_hSSAOSamplerState;

  ezShaderResourceHandle m_hDownscaleShader;
  ezShaderResourceHandle m_hSSAOShader;
  ezShaderResourceHandle m_hBlurShader;

  // Graph state
  ezRenderGraphTextureHandle m_hHzbTexture;
  ezTempHybridArray<ezVec2, 8> m_HzbSizes;
  ezTempHybridArray<ezGALTextureRange, 8> m_HzbResourceViews;
  ezRenderGraphTextureHandle m_hSSAOTemp;
};