Shadow.hpp

#pragma once
 
#include <functional>
 
#include <Common/Rendering/RendererFeature.hpp>
#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 Shadow : public Rendering::RendererFeature {
    public:
        Shadow() : Rendering::RendererFeature("Shadow", Rendering::DeferredRenderGraphOrderEvent::RenderingDirectionalShadows) {}
        static const char* GetStaticFeatureName() { return "Shadow"; }
        virtual void Initialize() override;
        virtual void Bind(
            Grindstone::Renderer::RenderGraphBuilder& renderGraphBuilder,
            Grindstone::Renderer::RenderFrameContext& context
        ) override;
 
    protected:
        void PrepareAtlas(uint32_t totalShadowMapCount);
        bool GetAtlasRenderArea(Grindstone::Math::IntRect2D& rect);
        uint32_t currentAtlasIndex = 0;
        uint32_t shadowResolution = 512;
        uint32_t maxAtlasCount = 0;
    };
}