97 lines
3.5 KiB
C++
97 lines
3.5 KiB
C++
// Copyright (C) 2024 Jérôme "SirLynix" Leclercq (lynix680@gmail.com)
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// This file is part of the "Nazara Engine - Graphics module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#pragma once
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#ifndef NAZARA_GRAPHICS_DIRECTIONALLIGHTSHADOWDATA_HPP
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#define NAZARA_GRAPHICS_DIRECTIONALLIGHTSHADOWDATA_HPP
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#include <NazaraUtils/Prerequisites.hpp>
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#include <Nazara/Graphics/Config.hpp>
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#include <Nazara/Graphics/DepthPipelinePass.hpp>
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#include <Nazara/Graphics/Light.hpp>
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#include <Nazara/Graphics/LightShadowData.hpp>
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#include <Nazara/Graphics/ShadowViewer.hpp>
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#include <NazaraUtils/FixedVector.hpp>
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#include <NazaraUtils/SparsePtr.hpp>
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#include <unordered_map>
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#include <vector>
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namespace Nz
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{
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class FramePipeline;
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class DirectionalLight;
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class NAZARA_GRAPHICS_API DirectionalLightShadowData : public LightShadowData
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{
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public:
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DirectionalLightShadowData(FramePipeline& pipeline, ElementRendererRegistry& elementRegistry, const DirectionalLight& light, std::size_t cascadeCount);
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DirectionalLightShadowData(const DirectionalLightShadowData&) = delete;
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DirectionalLightShadowData(DirectionalLightShadowData&&) = delete;
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~DirectionalLightShadowData() = default;
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inline void EnableShadowStabilization(bool enable);
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inline std::size_t GetCascadeCount() const;
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inline void GetCascadeData(const AbstractViewer* viewer, SparsePtr<float> distance, SparsePtr<Matrix4f> viewProjMatrix) const;
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inline bool IsShadowStabilization() const;
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void PrepareRendering(RenderResources& renderResources, const AbstractViewer* viewer) override;
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void RegisterMaterialInstance(const MaterialInstance& matInstance) override;
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void RegisterPassInputs(FramePass& pass, const AbstractViewer* viewer) override;
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void RegisterToFrameGraph(FrameGraph& frameGraph, const AbstractViewer* viewer) override;
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void RegisterViewer(const AbstractViewer* viewer) override;
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const Texture* RetrieveLightShadowmap(const BakedFrameGraph& bakedGraph, const AbstractViewer* viewer) const override;
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void UnregisterMaterialInstance(const MaterialInstance& matInstance) override;
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void UnregisterViewer(const AbstractViewer* viewer) override;
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DirectionalLightShadowData& operator=(const DirectionalLightShadowData&) = delete;
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DirectionalLightShadowData& operator=(DirectionalLightShadowData&&) = delete;
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private:
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struct CascadeData;
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template<typename F> void ForEachCascade(F&& callback);
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void ComputeLightView(CascadeData& cascade, const Frustumf& cascadeFrustum, float cascadeDist);
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void StabilizeShadows(CascadeData& cascade);
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NazaraSlot(Light, OnLightShadowMapSettingChange, m_onLightShadowMapSettingChange);
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NazaraSlot(Light, OnLightTransformInvalided, m_onLightTransformInvalidated);
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struct CascadeData
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{
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std::optional<DepthPipelinePass> depthPass;
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std::size_t attachmentIndex;
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Matrix4f viewProjMatrix;
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ShadowViewer viewer;
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float distance;
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};
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struct PerViewerData
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{
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FixedVector<CascadeData, 8> cascades;
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std::size_t textureArrayAttachmentIndex;
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};
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std::size_t m_cascadeCount;
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std::vector<std::unique_ptr<PerViewerData>> m_destructionQueue;
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std::unordered_map<const AbstractViewer*, std::unique_ptr<PerViewerData>> m_viewerData;
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ElementRendererRegistry& m_elementRegistry;
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FramePipeline& m_pipeline;
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const DirectionalLight& m_light;
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bool m_isShadowStabilizationEnabled;
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float m_invTexelScale;
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float m_texelScale;
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};
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}
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#include <Nazara/Graphics/DirectionalLightShadowData.inl>
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#endif // NAZARA_GRAPHICS_DIRECTIONALLIGHTSHADOWDATA_HPP
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