ShadowPass.hpp

#pragma once
 
#include <functional>
 
#include <Common/Rendering/RenderGraph.hpp>
#include <Common/Rendering/GeometryRenderingStats.hpp>
#include <EngineCore/Assets/AssetReference.hpp>
#include <EngineCore/Assets/PipelineSet/GraphicsPipelineAsset.hpp>
 
namespace Grindstone::Renderer {
    struct ShadowPassReturnData {
        Renderer::RenderGraphBuilderResourceRef shadowOutputRef;
    };
 
 
    class ShadowPass {
    public:
        bool Initialize();
        ShadowPassReturnData AddShadowPasses(
            const glm::vec3& eyePos,
            const glm::mat4& cameraProjectionMatrix,
            const glm::mat4& cameraViewMatrix,
            Grindstone::Renderer::RenderGraphBuilder& renderGraph,
            Grindstone::WorldContextSet& worldContextSet,
            std::function<void(const Grindstone::Rendering::GeometryRenderStats&)> pushRenderingStatsCallback
        );
 
    protected:
        void PrepareAtlas(uint32_t totalShadowMapCount);
        bool GetAtlasRenderArea(Grindstone::Math::IntRect2D& rect);
        uint32_t currentAtlasIndex = 0;
        uint32_t shadowResolution = 512;
        uint32_t maxAtlasCount = 0;
    };
}