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+// This code contains NVIDIA Confidential Information and is disclosed 
+// under the Mutual Non-Disclosure Agreement. 
+// 
+// Notice 
+// ALL NVIDIA DESIGN SPECIFICATIONS AND CODE ("MATERIALS") ARE PROVIDED "AS IS" NVIDIA MAKES 
+// NO REPRESENTATIONS, WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO 
+// THE MATERIALS, AND EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTIES OF NONINFRINGEMENT, 
+// MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. 
+// 
+// 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. No third party distribution is allowed unless 
+// expressly authorized by NVIDIA.  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) 2003 - 2016 NVIDIA Corporation. All rights reserved.
+//
+// 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.
+//
+
+#ifndef SCENE_H
+#define SCENE_H
+////////////////////////////////////////////////////////////////////////////////
+#include "common.h"
+#include <Nv/VolumetricLighting/NvVolumetricLighting.h>
+////////////////////////////////////////////////////////////////////////////////
+class Scene
+{
+public:
+    static const uint32_t SHADOWMAP_RESOLUTION;
+    static const float LIGHT_RANGE;
+    static const float SPOTLIGHT_FALLOFF_ANGLE;
+    static const float SPOTLIGHT_FALLOFF_POWER;
+
+    enum class eLightMode
+    {
+        UNKNOWN = -1,
+        DIRECTIONAL,
+        SPOTLIGHT,
+        OMNI,
+        COUNT
+    };
+
+    struct ViewCB
+    {
+        Nv::NvMat44 mProj;
+        Nv::NvVec3 vEyePos;
+        float pad1[1];
+        float zNear;
+        float zFar;
+        float pad2[2];
+    };
+
+    struct ObjectCB
+    {
+        Nv::NvMat44 mTransform;
+        float vColor[3];
+        float pad[1];
+    };
+
+    struct LightCB
+    {
+        Nv::NvMat44 mLightViewProj;
+        Nv::NvVec3 vLightDirection;
+        float fLightFalloffCosTheta;
+        Nv::NvVec3 vLightPos;
+        float fLightFalloffPower;
+        Nv::NvVec3 vLightColor;
+        float pad1[1];
+        Nv::NvVec4 vLightAttenuationFactors;
+        float zNear;
+        float zFar;
+        float pad2[2];
+        Nv::NvVec3 vSigmaExtinction;
+        float pad3[1];
+    };
+
+    Scene();
+    void Release();
+
+    bool isCtxValid();
+    void invalidateCtx();
+    void createCtx(const Nv::Vl::PlatformDesc * platform);
+
+    void updateFramebuffer(uint32_t w, uint32_t h, uint32_t s);
+
+    void setDebugMode(Nv::Vl::DebugFlags d);
+    void togglePause();
+    void toggleDownsampleMode();
+    void toggleMsaaMode();
+    void toggleFiltering();
+    void toggleUpsampleMode();
+    void toggleFog();
+    void toggleViewpoint();
+    void toggleIntensity();
+    void toggleMediumType();
+    void toggleLightMode();
+
+    eLightMode getLightMode();
+    void getLightViewpoint(Nv::NvVec3 & vPos, Nv::NvMat44 & mViewProj);
+    Nv::NvVec3 getLightIntensity();
+
+    const Nv::Vl::ViewerDesc * getViewerDesc();
+    const Nv::Vl::LightDesc * getLightDesc();
+    const Nv::Vl::MediumDesc * getMediumDesc();
+    const Nv::Vl::PostprocessDesc * getPostprocessDesc();
+
+    void beginAccumulation(Nv::Vl::PlatformRenderCtx ctx, Nv::Vl::PlatformShaderResource sceneDepth);
+    void renderVolume(Nv::Vl::PlatformRenderCtx ctx, Nv::Vl::PlatformShaderResource shadowmap);
+    void endAccumulation(Nv::Vl::PlatformRenderCtx ctx);
+    void applyLighting(Nv::Vl::PlatformRenderCtx ctx, Nv::Vl::PlatformRenderTarget sceneRT, Nv::Vl::PlatformShaderResource sceneDepth);
+
+    void setupObjectCB(ObjectCB * pObject, const Nv::NvVec3 & offset);
+    void setupLightViewCB(ViewCB * cb);
+    void setupSceneCBs(ViewCB * view_cb, LightCB * light_cb);
+    void animate(float dt);
+
+private:
+    Scene(const Scene & rhs) {rhs;};
+
+    Nv::Vl::Context gwvlctx_;
+    uint32_t shadowmapRes_;
+
+    bool isCtxValid_;
+    bool isPaused_;
+
+    eLightMode lightMode_;
+
+    Nv::Vl::DebugFlags debugMode_;
+    uint32_t viewpoint_;
+    uint32_t lightPower_;
+    uint32_t mediumType_;
+
+    Nv::NvMat44 sceneTransform_;
+    Nv::NvMat44 lightTransform_;
+
+    Nv::Vl::ContextDesc contextDesc_;
+    Nv::Vl::PostprocessDesc postprocessDesc_;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+#endif // SCENE_H