ShadowRenderer.hpp

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//
//  CeresEngine - A game development framework
//
//  Created by Rogiel Sulzbach.
//  Copyright (c) 2018-2022 Rogiel Sulzbach. All rights reserved.
//
 
#pragma once
 
#include "CeresEngine/RenderAPI/Forward.hpp"
#include "CeresEngine/Renderer/Resources/Forward.hpp"
 
#include "CeresEngine/Math/Geometry.hpp"
#include "CeresEngine/Mesh/VertexDeclaration.hpp"
#include "CeresEngine/Scene/Light.hpp"
 
namespace CeresEngine {
 
    class Renderer;
    class RendererCamera;
    class RendererLight;
 
    class ShadowRenderer {
    private:
        Renderer& mRenderer;
 
        GPURenderPassPtr mRenderPass;
 
        RendererGraphicsPipelinePtr mDepthPipeline;
 
    public:
        explicit ShadowRenderer(Renderer& renderer, GPUDevice& device);
 
    public:
        GPUImagePtr render(GPUCommandBuffer& commandBuffer, RendererLight& light);
 
    protected:
        GPUImagePtr renderPoint(GPUCommandBuffer& commandBuffer, RendererLight& light);
 
        GPUImagePtr renderSpot(GPUCommandBuffer& commandBuffer, RendererLight& light);
 
        GPUImagePtr renderDirectional(GPUCommandBuffer& commandBuffer, RendererLight& light);
 
    private:
        using GraphicsPipelineGetter = std::function<GPUGraphicsPipelinePtr(const VertexDeclaration&)>;
 
        void drawScene(GPUCommandBuffer& commandBuffer, RendererScene& scene, const ConvexVolume& lightFrustum,
            const RendererGraphicsPipeline& rendererGraphicsPipeline, const RendererShaderSpecialization& shaderSpecialization, const GPUUniformBuffer& lightUniform);
    };
 
} // namespace CeresEngine