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// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and related documentation and
// any modifications thereto. Any use, reproduction, disclosure, or
// distribution of this software and related documentation without an express
// license agreement from NVIDIA Corporation is strictly prohibited.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2008-2020 NVIDIA Corporation. All rights reserved.
#ifndef RENDERER_SHADOW_H
#define RENDERER_SHADOW_H
#include <DirectXMath.h>
#include "Utils.h"
#include "gfsdk_shadowlib.h"
#include <string>
class CFirstPersonCamera;
class Renderer;
class RendererShadow
{
public:
RendererShadow();
~RendererShadow();
void createResources(ID3D11Device *pd3dDevice, ID3D11DeviceContext* context, CFirstPersonCamera* camera);
void setScreenResolution(float FovyRad, UINT Width, UINT Height, UINT uSampleCount, ID3D11DepthStencilView* pReadOnlyDSV);
void changeShadowSettings(UINT Width, UINT Height, UINT uSampleCount, ID3D11DepthStencilView* pReadOnlyDSV);
void renderShadowMaps(Renderer* renderer);
void renderShadowBuffer(ID3D11ShaderResourceView* pDepthStencilSRV, ID3D11ShaderResourceView* pResolvedDepthStencilSRV);
void modulateShadowBuffer(ID3D11RenderTargetView* pOutputRTV);
void displayShadowMaps(ID3D11RenderTargetView* pOutputRTV, UINT Width, UINT Height);
void displayMapFrustums(ID3D11RenderTargetView* pOutputRTV, ID3D11DepthStencilView* pDSV);
void displayShadowBuffer(ID3D11RenderTargetView* pOutputRTV);
void toggleDisplayCascades(bool bToggle);
void drawUI();
private:
void reloadBuffers();
void ReleaseResources();
GFSDK_ShadowLib_Context* m_shadowLibContext;
GFSDK_ShadowLib_ShaderResourceView m_shadowBufferSRV;
GFSDK_ShadowLib_Map* m_shadowMapHandle;
GFSDK_ShadowLib_MapDesc m_SMDesc;
GFSDK_ShadowLib_BufferDesc m_SBDesc;
GFSDK_ShadowLib_MapRenderParams m_SMRenderParams;
GFSDK_ShadowLib_Buffer* m_shadowBufferHandle;
GFSDK_ShadowLib_BufferRenderParams m_SBRenderParams;
GFSDK_ShadowLib_TempResources m_tempResources;
GFSDK_ShadowLib_Texture2D m_downsampledShadowMap;
CFirstPersonCamera* m_camera;
// params
bool m_PCSSEnabled;
float m_lightSize;
DirectX::XMFLOAT3 m_lightPos;
DirectX::XMFLOAT3 m_lightLookAt;
DirectX::XMFLOAT3 m_shadowColor;
GFSDK_ShadowLib_PCSSPenumbraParams m_PCSSParams;
float m_softShadowTestScale;
gfsdk_float3 m_worldSpaceBBox0;
gfsdk_float3 m_worldSpaceBBox1;
};
#endif
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