ScreenSpaceAmbientOcclusionPass.hpp

#pragma once
 
#include <Common/Rendering/RenderGraphBuilder.hpp>
#include <EngineCore/Assets/AssetReference.hpp>
#include <EngineCore/Assets/PipelineSet/GraphicsPipelineAsset.hpp>
 
#include "GbufferPass.hpp"
 
namespace Grindstone::GraphicsAPI {
    class Buffer;
    class Image;
    class Sampler;
    class DescriptorSet;
    class DescriptorSetLayout;
}
namespace Grindstone::Renderer {
    class ScreenSpaceAmbientOcclusionPass {
    public:
        bool Initialize();
        RenderGraphBuilderResourceRef AddPass(
            GraphicsAPI::Buffer* vertexBuffer,
            GraphicsAPI::Buffer* indexBuffer,
            Grindstone::Renderer::RenderGraphBuilder& renderGraph,
            const GbufferData& gbufferData
        );
 
    private:
        Grindstone::AssetReference<Grindstone::GraphicsPipelineAsset> ssaoPipelineSet;
        void CreateSsaoKernelAndNoise();
 
        Grindstone::GraphicsAPI::Buffer* ssaoUniformBuffer;
        Grindstone::GraphicsAPI::Image* ssaoNoiseTexture;
        Grindstone::GraphicsAPI::Sampler* screenSampler;
        Grindstone::GraphicsAPI::Sampler* ssaoNoiseSampler;
        Grindstone::GraphicsAPI::DescriptorSetLayout* ssaoInputDescriptorSetLayout;
        Grindstone::GraphicsAPI::DescriptorSet* ssaoInputDescriptorSet;
    };
}