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main.cpp
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main.cpp
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/***************************************************************************
# Copyright (c) 2020-2023, NVIDIA CORPORATION. All rights reserved.
#
# NVIDIA CORPORATION and its licensors retain all intellectual property
# and proprietary rights in and to this software, 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.
**************************************************************************/
// Include this first just to test the cleanliness
#include <rtxdi/ImportanceSamplingContext.h>
#include <donut/render/ToneMappingPasses.h>
#include <donut/render/TemporalAntiAliasingPass.h>
#include <donut/app/ApplicationBase.h>
#include <donut/app/Camera.h>
#include <donut/engine/ShaderFactory.h>
#include <donut/engine/CommonRenderPasses.h>
#include <donut/engine/TextureCache.h>
#include <donut/render/BloomPass.h>
#include <donut/render/SkyPass.h>
#include <donut/engine/Scene.h>
#include <donut/engine/FramebufferFactory.h>
#include <donut/engine/DescriptorTableManager.h>
#include <donut/engine/View.h>
#include <donut/engine/IesProfile.h>
#include <donut/app/DeviceManager.h>
#include <donut/core/log.h>
#include <donut/core/vfs/VFS.h>
#include <donut/core/math/math.h>
#include <nvrhi/utils.h>
#ifdef DONUT_WITH_TASKFLOW
#include <taskflow/taskflow.hpp>
#endif
#include "RenderTargets.h"
#include "ConfidencePass.h"
#include "FilterGradientsPass.h"
#include "CompositingPass.h"
#include "AccumulationPass.h"
#include "GBufferPass.h"
#include "GlassPass.h"
#include "PrepareLightsPass.h"
#include "RenderEnvironmentMapPass.h"
#include "GenerateMipsPass.h"
#include "LightingPasses.h"
#include "RtxdiResources.h"
#include "SampleScene.h"
#include "Profiler.h"
#include "UserInterface.h"
#include "VisualizationPass.h"
#include "Testing.h"
#include "DebugViz/DebugVizPasses.h"
#if WITH_NRD
#include "NrdIntegration.h"
#endif
#if WITH_DLSS
#include "DLSS.h"
#endif
#ifndef _WIN32
#include <unistd.h>
#else
extern "C" {
// Prefer using the discrete GPU on Optimus laptops
_declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
}
#endif
using namespace donut;
using namespace donut::math;
using namespace std::chrono;
#include "../shaders/ShaderParameters.h"
static int g_ExitCode = 0;
class SceneRenderer : public app::ApplicationBase
{
private:
nvrhi::CommandListHandle m_CommandList;
nvrhi::BindingLayoutHandle m_BindlessLayout;
std::shared_ptr<vfs::RootFileSystem> m_RootFs;
std::shared_ptr<engine::ShaderFactory> m_ShaderFactory;
std::shared_ptr<SampleScene> m_Scene;
std::shared_ptr<engine::DescriptorTableManager> m_DescriptorTableManager;
std::unique_ptr<render::ToneMappingPass> m_ToneMappingPass;
std::unique_ptr<render::TemporalAntiAliasingPass> m_TemporalAntiAliasingPass;
std::unique_ptr<render::BloomPass> m_BloomPass;
std::shared_ptr<RenderTargets> m_RenderTargets;
app::FirstPersonCamera m_Camera;
engine::PlanarView m_View;
engine::PlanarView m_ViewPrevious;
engine::PlanarView m_UpscaledView;
std::shared_ptr<engine::DirectionalLight> m_SunLight;
std::shared_ptr<EnvironmentLight> m_EnvironmentLight;
std::shared_ptr<engine::LoadedTexture> m_EnvironmentMap;
engine::BindingCache m_BindingCache;
std::unique_ptr<rtxdi::ImportanceSamplingContext> m_isContext;
std::unique_ptr<RaytracedGBufferPass> m_GBufferPass;
std::unique_ptr<RasterizedGBufferPass> m_RasterizedGBufferPass;
std::unique_ptr<PostprocessGBufferPass> m_PostprocessGBufferPass;
std::unique_ptr<GlassPass> m_GlassPass;
std::unique_ptr<FilterGradientsPass> m_FilterGradientsPass;
std::unique_ptr<ConfidencePass> m_ConfidencePass;
std::unique_ptr<CompositingPass> m_CompositingPass;
std::unique_ptr<AccumulationPass> m_AccumulationPass;
std::unique_ptr<PrepareLightsPass> m_PrepareLightsPass;
std::unique_ptr<RenderEnvironmentMapPass> m_RenderEnvironmentMapPass;
std::unique_ptr<GenerateMipsPass> m_EnvironmentMapPdfMipmapPass;
std::unique_ptr<GenerateMipsPass> m_LocalLightPdfMipmapPass;
std::unique_ptr<LightingPasses> m_LightingPasses;
std::unique_ptr<VisualizationPass> m_VisualizationPass;
std::unique_ptr<RtxdiResources> m_RtxdiResources;
std::unique_ptr<engine::IesProfileLoader> m_IesProfileLoader;
std::shared_ptr<Profiler> m_Profiler;
std::unique_ptr<DebugVizPasses> m_DebugVizPasses;
uint32_t m_RenderFrameIndex = 0;
#if WITH_NRD
std::unique_ptr<NrdIntegration> m_NRD;
#endif
#if WITH_DLSS
std::unique_ptr<DLSS> m_DLSS;
#endif
UIData& m_ui;
CommandLineArguments& m_args;
uint m_FramesSinceAnimation = 0;
bool m_PreviousViewValid = false;
time_point<steady_clock> m_PreviousFrameTimeStamp;
std::vector<std::shared_ptr<engine::IesProfile>> m_IesProfiles;
dm::float3 m_RegirCenter;
enum class FrameStepMode
{
Disabled,
Wait,
Step
};
FrameStepMode m_FrameStepMode = FrameStepMode::Disabled;
public:
SceneRenderer(app::DeviceManager* deviceManager, UIData& ui, CommandLineArguments& args)
: ApplicationBase(deviceManager)
, m_BindingCache(deviceManager->GetDevice())
, m_ui(ui)
, m_args(args)
{
m_ui.resources->camera = &m_Camera;
}
[[nodiscard]] std::shared_ptr<engine::ShaderFactory> GetShaderFactory() const
{
return m_ShaderFactory;
}
[[nodiscard]] std::shared_ptr<vfs::IFileSystem> GetRootFs() const
{
return m_RootFs;
}
bool Init()
{
std::filesystem::path mediaPath = app::GetDirectoryWithExecutable().parent_path() / "rtxdi-assets";
if (!std::filesystem::exists(mediaPath))
{
mediaPath = mediaPath.parent_path().parent_path() / "rtxdi-assets";
if (!std::filesystem::exists(mediaPath))
{
log::error("Couldn't locate the 'rtxdi-assets' folder.");
return false;
}
}
std::filesystem::path frameworkShaderPath = app::GetDirectoryWithExecutable() / "shaders/framework" / app::GetShaderTypeName(GetDevice()->getGraphicsAPI());
std::filesystem::path appShaderPath = app::GetDirectoryWithExecutable() / "shaders/rtxdi-sample" / app::GetShaderTypeName(GetDevice()->getGraphicsAPI());
log::debug("Mounting %s to %s", mediaPath.string().c_str(), "/rtxdi-assets");
log::debug("Mounting %s to %s", frameworkShaderPath.string().c_str(), "/shaders/donut");
log::debug("Mounting %s to %s", appShaderPath.string().c_str(), "/shaders/app");
m_RootFs = std::make_shared<vfs::RootFileSystem>();
m_RootFs->mount("/rtxdi-assets", mediaPath);
m_RootFs->mount("/shaders/donut", frameworkShaderPath);
m_RootFs->mount("/shaders/app", appShaderPath);
m_ShaderFactory = std::make_shared<engine::ShaderFactory>(GetDevice(), m_RootFs, "/shaders");
m_CommonPasses = std::make_shared<engine::CommonRenderPasses>(GetDevice(), m_ShaderFactory);
{
nvrhi::BindlessLayoutDesc bindlessLayoutDesc;
bindlessLayoutDesc.firstSlot = 0;
bindlessLayoutDesc.registerSpaces = {
nvrhi::BindingLayoutItem::RawBuffer_SRV(1),
nvrhi::BindingLayoutItem::Texture_SRV(2),
nvrhi::BindingLayoutItem::Texture_UAV(3)
};
bindlessLayoutDesc.visibility = nvrhi::ShaderType::All;
bindlessLayoutDesc.maxCapacity = 1024;
m_BindlessLayout = GetDevice()->createBindlessLayout(bindlessLayoutDesc);
}
std::filesystem::path scenePath = "/rtxdi-assets/bistro-rtxdi.scene.json";
m_DescriptorTableManager = std::make_shared<engine::DescriptorTableManager>(GetDevice(), m_BindlessLayout);
m_TextureCache = std::make_shared<donut::engine::TextureCache>(GetDevice(), m_RootFs, m_DescriptorTableManager);
m_TextureCache->SetInfoLogSeverity(donut::log::Severity::Debug);
m_IesProfileLoader = std::make_unique<engine::IesProfileLoader>(GetDevice(), m_ShaderFactory, m_DescriptorTableManager);
auto sceneTypeFactory = std::make_shared<SampleSceneTypeFactory>();
m_Scene = std::make_shared<SampleScene>(GetDevice(), *m_ShaderFactory, m_RootFs, m_TextureCache, m_DescriptorTableManager, sceneTypeFactory);
m_ui.resources->scene = m_Scene;
SetAsynchronousLoadingEnabled(true);
BeginLoadingScene(m_RootFs, scenePath);
GetDeviceManager()->SetVsyncEnabled(true);
if (!GetDevice()->queryFeatureSupport(nvrhi::Feature::RayQuery))
m_ui.useRayQuery = false;
m_Profiler = std::make_shared<Profiler>(*GetDeviceManager());
m_ui.resources->profiler = m_Profiler;
m_FilterGradientsPass = std::make_unique<FilterGradientsPass>(GetDevice(), m_ShaderFactory);
m_ConfidencePass = std::make_unique<ConfidencePass>(GetDevice(), m_ShaderFactory);
m_CompositingPass = std::make_unique<CompositingPass>(GetDevice(), m_ShaderFactory, m_CommonPasses, m_Scene, m_BindlessLayout);
m_AccumulationPass = std::make_unique<AccumulationPass>(GetDevice(), m_ShaderFactory);
m_GBufferPass = std::make_unique<RaytracedGBufferPass>(GetDevice(), m_ShaderFactory, m_CommonPasses, m_Scene, m_Profiler, m_BindlessLayout);
m_RasterizedGBufferPass = std::make_unique<RasterizedGBufferPass>(GetDevice(), m_ShaderFactory, m_CommonPasses, m_Scene, m_Profiler, m_BindlessLayout);
m_PostprocessGBufferPass = std::make_unique<PostprocessGBufferPass>(GetDevice(), m_ShaderFactory);
m_GlassPass = std::make_unique<GlassPass>(GetDevice(), m_ShaderFactory, m_CommonPasses, m_Scene, m_Profiler, m_BindlessLayout);
m_PrepareLightsPass = std::make_unique<PrepareLightsPass>(GetDevice(), m_ShaderFactory, m_CommonPasses, m_Scene, m_BindlessLayout);
m_LightingPasses = std::make_unique<LightingPasses>(GetDevice(), m_ShaderFactory, m_CommonPasses, m_Scene, m_Profiler, m_BindlessLayout);
#if WITH_DLSS
{
#if DONUT_WITH_DX12
if (GetDevice()->getGraphicsAPI() == nvrhi::GraphicsAPI::D3D12)
m_DLSS = DLSS::CreateDX12(GetDevice(), *m_ShaderFactory);
#endif
#if DONUT_WITH_VULKAN
if (GetDevice()->getGraphicsAPI() == nvrhi::GraphicsAPI::VULKAN)
m_DLSS = DLSS::CreateVK(GetDevice(), *m_ShaderFactory);
#endif
}
#endif
LoadShaders();
std::vector<std::string> profileNames;
m_RootFs->enumerateFiles("/rtxdi-assets/ies-profiles", { ".ies" }, vfs::enumerate_to_vector(profileNames));
for (const std::string& profileName : profileNames)
{
auto profile = m_IesProfileLoader->LoadIesProfile(*m_RootFs, "/rtxdi-assets/ies-profiles/" + profileName);
if (profile)
{
m_IesProfiles.push_back(profile);
}
}
m_ui.resources->iesProfiles = m_IesProfiles;
m_CommandList = GetDevice()->createCommandList();
return true;
}
void AssignIesProfiles(nvrhi::ICommandList* commandList)
{
for (const auto& light : m_Scene->GetSceneGraph()->GetLights())
{
if (light->GetLightType() == LightType_Spot)
{
SpotLightWithProfile& spotLight = static_cast<SpotLightWithProfile&>(*light);
if (spotLight.profileName.empty())
continue;
if (spotLight.profileTextureIndex >= 0)
continue;
auto foundProfile = std::find_if(m_IesProfiles.begin(), m_IesProfiles.end(),
[&spotLight](auto it) { return it->name == spotLight.profileName; });
if (foundProfile != m_IesProfiles.end())
{
m_IesProfileLoader->BakeIesProfile(**foundProfile, commandList);
spotLight.profileTextureIndex = (*foundProfile)->textureIndex;
}
}
}
}
virtual void SceneLoaded() override
{
ApplicationBase::SceneLoaded();
m_Scene->FinishedLoading(GetFrameIndex());
m_Camera.LookAt(float3(-7.688f, 2.0f, 5.594f), float3(-7.3341f, 2.0f, 6.5366f));
m_Camera.SetMoveSpeed(3.f);
const auto& sceneGraph = m_Scene->GetSceneGraph();
for (const auto& pLight : sceneGraph->GetLights())
{
if (pLight->GetLightType() == LightType_Directional)
{
m_SunLight = std::static_pointer_cast<engine::DirectionalLight>(pLight);
break;
}
}
if (!m_SunLight)
{
m_SunLight = std::make_shared<engine::DirectionalLight>();
sceneGraph->AttachLeafNode(sceneGraph->GetRootNode(), m_SunLight);
m_SunLight->SetDirection(dm::double3(0.15, -1.0, 0.3));
m_SunLight->angularSize = 1.f;
}
m_CommandList->open();
AssignIesProfiles(m_CommandList);
m_CommandList->close();
GetDevice()->executeCommandList(m_CommandList);
// Create an environment light
m_EnvironmentLight = std::make_shared<EnvironmentLight>();
sceneGraph->AttachLeafNode(sceneGraph->GetRootNode(), m_EnvironmentLight);
m_EnvironmentLight->SetName("Environment");
m_ui.environmentMapDirty = 2;
m_ui.environmentMapIndex = 0;
m_RasterizedGBufferPass->CreateBindingSet();
m_Scene->BuildMeshBLASes(GetDevice());
GetDeviceManager()->SetVsyncEnabled(false);
m_ui.isLoading = false;
}
void LoadShaders()
{
m_FilterGradientsPass->CreatePipeline();
m_ConfidencePass->CreatePipeline();
m_CompositingPass->CreatePipeline();
m_AccumulationPass->CreatePipeline();
m_GBufferPass->CreatePipeline(m_ui.useRayQuery);
m_PostprocessGBufferPass->CreatePipeline();
m_GlassPass->CreatePipeline(m_ui.useRayQuery);
m_PrepareLightsPass->CreatePipeline();
}
virtual bool LoadScene(std::shared_ptr<vfs::IFileSystem> fs, const std::filesystem::path& sceneFileName) override
{
if (m_Scene->Load(sceneFileName))
{
return true;
}
return false;
}
bool KeyboardUpdate(int key, int scancode, int action, int mods) override
{
if (key == GLFW_KEY_GRAVE_ACCENT && action == GLFW_PRESS)
{
m_ui.showUI = !m_ui.showUI;
return true;
}
if (mods == GLFW_MOD_CONTROL && key == GLFW_KEY_R && action == GLFW_PRESS)
{
m_ui.reloadShaders = true;
return true;
}
if (mods == 0 && key == GLFW_KEY_F1 && action == GLFW_PRESS)
{
m_FrameStepMode = (m_FrameStepMode == FrameStepMode::Disabled) ? FrameStepMode::Wait : FrameStepMode::Disabled;
return true;
}
if (mods == 0 && key == GLFW_KEY_F2 && action == GLFW_PRESS)
{
if (m_FrameStepMode == FrameStepMode::Wait)
m_FrameStepMode = FrameStepMode::Step;
return true;
}
if (mods == 0 && key == GLFW_KEY_F5 && action == GLFW_PRESS)
{
if (m_ui.animationFrame.has_value())
{
// Stop benchmark if it's running
m_ui.animationFrame.reset();
}
else
{
// Start benchmark otherwise
m_ui.animationFrame = std::optional<int>(0);
}
return true;
}
m_Camera.KeyboardUpdate(key, scancode, action, mods);
return true;
}
virtual bool MousePosUpdate(double xpos, double ypos) override
{
m_Camera.MousePosUpdate(xpos, ypos);
return true;
}
virtual bool MouseButtonUpdate(int button, int action, int mods) override
{
if (button == GLFW_MOUSE_BUTTON_RIGHT && action == GLFW_PRESS)
{
double mousex = 0, mousey = 0;
glfwGetCursorPos(GetDeviceManager()->GetWindow(), &mousex, &mousey);
// Scale the mouse position according to the render resolution scale
mousex *= m_View.GetViewport().width() / m_UpscaledView.GetViewport().width();
mousey *= m_View.GetViewport().height() / m_UpscaledView.GetViewport().height();
m_ui.gbufferSettings.materialReadbackPosition = int2(int(mousex), int(mousey));
m_ui.gbufferSettings.enableMaterialReadback = true;
return true;
}
m_Camera.MouseButtonUpdate(button, action, mods);
return true;
}
virtual void Animate(float fElapsedTimeSeconds) override
{
if (m_ui.isLoading)
return;
if (!m_args.saveFrameFileName.empty())
fElapsedTimeSeconds = 1.f / 60.f;
m_Camera.Animate(fElapsedTimeSeconds);
if (m_ui.enableAnimations)
m_Scene->Animate(fElapsedTimeSeconds * m_ui.animationSpeed);
if (m_ToneMappingPass)
m_ToneMappingPass->AdvanceFrame(fElapsedTimeSeconds);
}
virtual void BackBufferResized(const uint32_t width, const uint32_t height, const uint32_t sampleCount) override
{
// If the render size is overridden from the command line, ignore the window size.
if (m_args.renderWidth > 0 && m_args.renderHeight > 0)
return;
if (m_RenderTargets && m_RenderTargets->Size.x == int(width) && m_RenderTargets->Size.y == int(height))
return;
m_BindingCache.Clear();
m_RenderTargets = nullptr;
m_isContext = nullptr;
m_RtxdiResources = nullptr;
m_TemporalAntiAliasingPass = nullptr;
m_ToneMappingPass = nullptr;
m_BloomPass = nullptr;
#if WITH_NRD
m_NRD = nullptr;
#endif
}
void LoadEnvironmentMap()
{
if (m_EnvironmentMap)
{
// Make sure there is no rendering in-flight before we unload the texture and erase its descriptor.
// Decsriptor manipulations are synchronous and immediately affect whatever is executing on the GPU.
GetDevice()->waitForIdle();
m_TextureCache->UnloadTexture(m_EnvironmentMap);
m_EnvironmentMap = nullptr;
}
if (m_ui.environmentMapIndex > 0)
{
auto& environmentMaps = m_Scene->GetEnvironmentMaps();
const std::string& environmentMapPath = environmentMaps[m_ui.environmentMapIndex];
m_EnvironmentMap = m_TextureCache->LoadTextureFromFileDeferred(environmentMapPath, false);
if (m_TextureCache->IsTextureLoaded(m_EnvironmentMap))
{
m_TextureCache->ProcessRenderingThreadCommands(*m_CommonPasses, 0.f);
m_TextureCache->LoadingFinished();
m_EnvironmentMap->bindlessDescriptor = m_DescriptorTableManager->CreateDescriptorHandle(nvrhi::BindingSetItem::Texture_SRV(0, m_EnvironmentMap->texture));
}
else
{
// Failed to load the file: revert to the procedural map and remove this file from the list.
m_EnvironmentMap = nullptr;
environmentMaps.erase(environmentMaps.begin() + m_ui.environmentMapIndex);
m_ui.environmentMapIndex = 0;
}
}
}
void SetupView(uint32_t renderWidth, uint32_t renderHeight, const engine::PerspectiveCamera* activeCamera)
{
nvrhi::Viewport windowViewport((float)renderWidth, (float)renderHeight);
if (m_TemporalAntiAliasingPass)
m_TemporalAntiAliasingPass->SetJitter(m_ui.temporalJitter);
nvrhi::Viewport renderViewport = windowViewport;
renderViewport.maxX = roundf(renderViewport.maxX * m_ui.resolutionScale);
renderViewport.maxY = roundf(renderViewport.maxY * m_ui.resolutionScale);
m_View.SetViewport(renderViewport);
if (m_ui.enablePixelJitter && m_TemporalAntiAliasingPass)
{
m_View.SetPixelOffset(m_TemporalAntiAliasingPass->GetCurrentPixelOffset());
}
else
{
m_View.SetPixelOffset(0.f);
}
const float aspectRatio = windowViewport.width() / windowViewport.height();
if (activeCamera)
m_View.SetMatrices(activeCamera->GetWorldToViewMatrix(), perspProjD3DStyleReverse(activeCamera->verticalFov, aspectRatio, activeCamera->zNear));
else
m_View.SetMatrices(m_Camera.GetWorldToViewMatrix(), perspProjD3DStyleReverse(radians(m_ui.verticalFov), aspectRatio, 0.01f));
m_View.UpdateCache();
if (m_ViewPrevious.GetViewExtent().width() == 0)
m_ViewPrevious = m_View;
m_UpscaledView = m_View;
m_UpscaledView.SetViewport(windowViewport);
}
void SetupRenderPasses(uint32_t renderWidth, uint32_t renderHeight, bool& exposureResetRequired)
{
if (m_ui.environmentMapDirty == 2)
{
m_EnvironmentMapPdfMipmapPass = nullptr;
m_ui.environmentMapDirty = 1;
}
if (m_ui.reloadShaders)
{
GetDevice()->waitForIdle();
m_ShaderFactory->ClearCache();
m_TemporalAntiAliasingPass = nullptr;
m_RenderEnvironmentMapPass = nullptr;
m_EnvironmentMapPdfMipmapPass = nullptr;
m_LocalLightPdfMipmapPass = nullptr;
m_VisualizationPass = nullptr;
m_DebugVizPasses = nullptr;
m_ui.environmentMapDirty = 1;
LoadShaders();
}
bool renderTargetsCreated = false;
bool rtxdiResourcesCreated = false;
if (!m_RenderEnvironmentMapPass)
{
m_RenderEnvironmentMapPass = std::make_unique<RenderEnvironmentMapPass>(GetDevice(), m_ShaderFactory, m_DescriptorTableManager, 2048);
}
const auto environmentMap = (m_ui.environmentMapIndex > 0)
? m_EnvironmentMap->texture.Get()
: m_RenderEnvironmentMapPass->GetTexture();
uint32_t numEmissiveMeshes, numEmissiveTriangles;
m_PrepareLightsPass->CountLightsInScene(numEmissiveMeshes, numEmissiveTriangles);
uint32_t numPrimitiveLights = uint32_t(m_Scene->GetSceneGraph()->GetLights().size());
uint32_t numGeometryInstances = uint32_t(m_Scene->GetSceneGraph()->GetGeometryInstancesCount());
uint2 environmentMapSize = uint2(environmentMap->getDesc().width, environmentMap->getDesc().height);
if (m_RtxdiResources && (
environmentMapSize.x != m_RtxdiResources->EnvironmentPdfTexture->getDesc().width ||
environmentMapSize.y != m_RtxdiResources->EnvironmentPdfTexture->getDesc().height ||
numEmissiveMeshes > m_RtxdiResources->GetMaxEmissiveMeshes() ||
numEmissiveTriangles > m_RtxdiResources->GetMaxEmissiveTriangles() ||
numPrimitiveLights > m_RtxdiResources->GetMaxPrimitiveLights() ||
numGeometryInstances > m_RtxdiResources->GetMaxGeometryInstances()))
{
m_RtxdiResources = nullptr;
}
if (!m_isContext)
{
rtxdi::ImportanceSamplingContext_StaticParameters isStaticParams;
isStaticParams.CheckerboardSamplingMode = m_ui.restirDIStaticParams.CheckerboardSamplingMode;
isStaticParams.renderHeight = renderHeight;
isStaticParams.renderWidth = renderWidth;
isStaticParams.regirStaticParams = m_ui.regirStaticParams;
m_isContext = std::make_unique<rtxdi::ImportanceSamplingContext>(isStaticParams);
m_ui.regirLightSlotCount = m_isContext->getReGIRContext().getReGIRLightSlotCount();
}
if (!m_RenderTargets)
{
m_RenderTargets = std::make_shared<RenderTargets>(GetDevice(), int2((int)renderWidth, (int)renderHeight));
m_Profiler->SetRenderTargets(m_RenderTargets);
m_GBufferPass->CreateBindingSet(m_Scene->GetTopLevelAS(), m_Scene->GetPrevTopLevelAS(), *m_RenderTargets);
m_PostprocessGBufferPass->CreateBindingSet(*m_RenderTargets);
m_GlassPass->CreateBindingSet(m_Scene->GetTopLevelAS(), m_Scene->GetPrevTopLevelAS(), *m_RenderTargets);
m_FilterGradientsPass->CreateBindingSet(*m_RenderTargets);
m_ConfidencePass->CreateBindingSet(*m_RenderTargets);
m_AccumulationPass->CreateBindingSet(*m_RenderTargets);
m_RasterizedGBufferPass->CreatePipeline(*m_RenderTargets);
m_CompositingPass->CreateBindingSet(*m_RenderTargets);
m_VisualizationPass = nullptr;
m_DebugVizPasses = nullptr;
renderTargetsCreated = true;
}
if (!m_RtxdiResources)
{
uint32_t meshAllocationQuantum = 128;
uint32_t triangleAllocationQuantum = 1024;
uint32_t primitiveAllocationQuantum = 128;
m_RtxdiResources = std::make_unique<RtxdiResources>(
GetDevice(),
m_isContext->getReSTIRDIContext(),
m_isContext->getRISBufferSegmentAllocator(),
(numEmissiveMeshes + meshAllocationQuantum - 1) & ~(meshAllocationQuantum - 1),
(numEmissiveTriangles + triangleAllocationQuantum - 1) & ~(triangleAllocationQuantum - 1),
(numPrimitiveLights + primitiveAllocationQuantum - 1) & ~(primitiveAllocationQuantum - 1),
numGeometryInstances,
environmentMapSize.x,
environmentMapSize.y);
m_PrepareLightsPass->CreateBindingSet(*m_RtxdiResources);
rtxdiResourcesCreated = true;
// Make sure that the environment PDF map is re-generated
m_ui.environmentMapDirty = 1;
}
if (!m_EnvironmentMapPdfMipmapPass || rtxdiResourcesCreated)
{
m_EnvironmentMapPdfMipmapPass = std::make_unique<GenerateMipsPass>(
GetDevice(),
m_ShaderFactory,
environmentMap,
m_RtxdiResources->EnvironmentPdfTexture);
}
if (!m_LocalLightPdfMipmapPass || rtxdiResourcesCreated)
{
m_LocalLightPdfMipmapPass = std::make_unique<GenerateMipsPass>(
GetDevice(),
m_ShaderFactory,
nullptr,
m_RtxdiResources->LocalLightPdfTexture);
}
if (renderTargetsCreated || rtxdiResourcesCreated)
{
m_LightingPasses->CreateBindingSet(
m_Scene->GetTopLevelAS(),
m_Scene->GetPrevTopLevelAS(),
*m_RenderTargets,
*m_RtxdiResources);
}
if (rtxdiResourcesCreated || m_ui.reloadShaders)
{
// Some RTXDI context settings affect the shader permutations
m_LightingPasses->CreatePipelines(m_ui.regirStaticParams, m_ui.useRayQuery);
}
m_ui.reloadShaders = false;
if (!m_TemporalAntiAliasingPass)
{
render::TemporalAntiAliasingPass::CreateParameters taaParams;
taaParams.motionVectors = m_RenderTargets->MotionVectors;
taaParams.unresolvedColor = m_RenderTargets->HdrColor;
taaParams.resolvedColor = m_RenderTargets->ResolvedColor;
taaParams.feedback1 = m_RenderTargets->TaaFeedback1;
taaParams.feedback2 = m_RenderTargets->TaaFeedback2;
taaParams.useCatmullRomFilter = true;
m_TemporalAntiAliasingPass = std::make_unique<render::TemporalAntiAliasingPass>(
GetDevice(), m_ShaderFactory, m_CommonPasses, m_View, taaParams);
}
exposureResetRequired = false;
if (!m_ToneMappingPass)
{
render::ToneMappingPass::CreateParameters toneMappingParams;
m_ToneMappingPass = std::make_unique<render::ToneMappingPass>(GetDevice(), m_ShaderFactory, m_CommonPasses, m_RenderTargets->LdrFramebuffer, m_UpscaledView, toneMappingParams);
exposureResetRequired = true;
}
if (!m_BloomPass)
{
m_BloomPass = std::make_unique<render::BloomPass>(GetDevice(), m_ShaderFactory, m_CommonPasses, m_RenderTargets->ResolvedFramebuffer, m_UpscaledView);
}
if (!m_VisualizationPass || renderTargetsCreated || rtxdiResourcesCreated)
{
m_VisualizationPass = std::make_unique<VisualizationPass>(GetDevice(), *m_CommonPasses, *m_ShaderFactory, *m_RenderTargets, *m_RtxdiResources);
}
if (!m_DebugVizPasses || renderTargetsCreated)
{
m_DebugVizPasses = std::make_unique<DebugVizPasses>(GetDevice(), m_ShaderFactory, m_Scene, m_BindlessLayout);
m_DebugVizPasses->CreateBindingSets(*m_RenderTargets, m_RenderTargets->DebugColor);
m_DebugVizPasses->CreatePipelines();
}
#if WITH_NRD
if (!m_NRD)
{
m_NRD = std::make_unique<NrdIntegration>(GetDevice(), m_ui.denoisingMethod);
m_NRD->Initialize(m_RenderTargets->Size.x, m_RenderTargets->Size.y);
}
#endif
#if WITH_DLSS
{
m_DLSS->SetRenderSize(m_RenderTargets->Size.x, m_RenderTargets->Size.y, m_RenderTargets->Size.x, m_RenderTargets->Size.y);
m_ui.dlssAvailable = m_DLSS->IsAvailable();
}
#endif
}
virtual void RenderSplashScreen(nvrhi::IFramebuffer* framebuffer) override
{
nvrhi::ITexture* framebufferTexture = framebuffer->getDesc().colorAttachments[0].texture;
m_CommandList->open();
m_CommandList->clearTextureFloat(framebufferTexture, nvrhi::AllSubresources, nvrhi::Color(0.f));
m_CommandList->close();
GetDevice()->executeCommandList(m_CommandList);
uint32_t loadedObjects = engine::Scene::GetLoadingStats().ObjectsLoaded;
uint32_t requestedObjects = engine::Scene::GetLoadingStats().ObjectsTotal;
uint32_t loadedTextures = m_TextureCache->GetNumberOfLoadedTextures();
uint32_t finalizedTextures = m_TextureCache->GetNumberOfFinalizedTextures();
uint32_t requestedTextures = m_TextureCache->GetNumberOfRequestedTextures();
uint32_t objectMultiplier = 20;
m_ui.loadingPercentage = (requestedTextures > 0)
? float(loadedTextures + finalizedTextures + loadedObjects * objectMultiplier) / float(requestedTextures * 2 + requestedObjects * objectMultiplier)
: 0.f;
}
void Resolve(nvrhi::ICommandList* commandList, float accumulationWeight) const
{
ProfilerScope scope(*m_Profiler, commandList, ProfilerSection::Resolve);
switch (m_ui.aaMode)
{
case AntiAliasingMode::None: {
engine::BlitParameters blitParams;
blitParams.sourceTexture = m_RenderTargets->HdrColor;
blitParams.sourceBox.m_maxs.x = m_View.GetViewport().width() / m_UpscaledView.GetViewport().width();
blitParams.sourceBox.m_maxs.y = m_View.GetViewport().height() / m_UpscaledView.GetViewport().height();
blitParams.targetFramebuffer = m_RenderTargets->ResolvedFramebuffer->GetFramebuffer(m_UpscaledView);
m_CommonPasses->BlitTexture(commandList, blitParams);
break;
}
case AntiAliasingMode::Accumulation: {
m_AccumulationPass->Render(commandList, m_View, m_UpscaledView, accumulationWeight);
m_CommonPasses->BlitTexture(commandList, m_RenderTargets->ResolvedFramebuffer->GetFramebuffer(m_UpscaledView), m_RenderTargets->AccumulatedColor);
break;
}
case AntiAliasingMode::TAA: {
auto taaParams = m_ui.taaParams;
if (m_ui.resetAccumulation)
taaParams.newFrameWeight = 1.f;
m_TemporalAntiAliasingPass->TemporalResolve(commandList, taaParams, m_PreviousViewValid, m_View, m_UpscaledView);
break;
}
#if WITH_DLSS
case AntiAliasingMode::DLSS: {
m_DLSS->Render(commandList, *m_RenderTargets, m_ToneMappingPass->GetExposureBuffer(), m_ui.dlssExposureScale, m_ui.dlssSharpness, m_ui.rasterizeGBuffer, m_ui.resetAccumulation, m_View, m_ViewPrevious);
break;
}
#endif
}
}
void UpdateReGIRContextFromUI()
{
auto& regirContext = m_isContext->getReGIRContext();
auto dynamicParams = m_ui.regirDynamicParameters;
dynamicParams.center = { m_RegirCenter.x, m_RegirCenter.y, m_RegirCenter.z };
regirContext.setDynamicParameters(dynamicParams);
}
void UpdateReSTIRDIContextFromUI()
{
rtxdi::ReSTIRDIContext& restirDIContext = m_isContext->getReSTIRDIContext();
ReSTIRDI_InitialSamplingParameters initialSamplingParams = m_ui.restirDI.initialSamplingParams;
switch (initialSamplingParams.localLightSamplingMode)
{
default:
case ReSTIRDI_LocalLightSamplingMode::Uniform:
initialSamplingParams.numPrimaryLocalLightSamples = m_ui.restirDI.numLocalLightUniformSamples;
break;
case ReSTIRDI_LocalLightSamplingMode::Power_RIS:
initialSamplingParams.numPrimaryLocalLightSamples = m_ui.restirDI.numLocalLightPowerRISSamples;
break;
case ReSTIRDI_LocalLightSamplingMode::ReGIR_RIS:
initialSamplingParams.numPrimaryLocalLightSamples = m_ui.restirDI.numLocalLightReGIRRISSamples;
break;
}
restirDIContext.setResamplingMode(m_ui.restirDI.resamplingMode);
restirDIContext.setInitialSamplingParameters(initialSamplingParams);
restirDIContext.setTemporalResamplingParameters(m_ui.restirDI.temporalResamplingParams);
restirDIContext.setSpatialResamplingParameters(m_ui.restirDI.spatialResamplingParams);
restirDIContext.setShadingParameters(m_ui.restirDI.shadingParams);
}
void UpdateReSTIRGIContextFromUI()
{
rtxdi::ReSTIRGIContext& restirGIContext = m_isContext->getReSTIRGIContext();
restirGIContext.setResamplingMode(m_ui.restirGI.resamplingMode);
restirGIContext.setTemporalResamplingParameters(m_ui.restirGI.temporalResamplingParams);
restirGIContext.setSpatialResamplingParameters(m_ui.restirGI.spatialResamplingParams);
restirGIContext.setFinalShadingParameters(m_ui.restirGI.finalShadingParams);
}
bool IsLocalLightPowerRISEnabled()
{
if (m_ui.indirectLightingMode == IndirectLightingMode::ReStirGI)
{
ReSTIRDI_InitialSamplingParameters indirectReSTIRDISamplingParams = m_ui.lightingSettings.brdfptParams.secondarySurfaceReSTIRDIParams.initialSamplingParams;
bool enabled = (indirectReSTIRDISamplingParams.localLightSamplingMode == ReSTIRDI_LocalLightSamplingMode::Power_RIS) ||
(indirectReSTIRDISamplingParams.localLightSamplingMode == ReSTIRDI_LocalLightSamplingMode::ReGIR_RIS && m_isContext->getReGIRContext().isLocalLightPowerRISEnable());
if (enabled)
return true;
}
return m_isContext->isLocalLightPowerRISEnabled();
}
void RenderScene(nvrhi::IFramebuffer* framebuffer) override
{
if (m_FrameStepMode == FrameStepMode::Wait)
{
nvrhi::TextureHandle finalImage;
if (m_ui.enableToneMapping)
finalImage = m_RenderTargets->LdrColor;
else
finalImage = m_RenderTargets->HdrColor;
m_CommandList->open();
m_CommonPasses->BlitTexture(m_CommandList, framebuffer, finalImage, &m_BindingCache);
m_CommandList->close();
GetDevice()->executeCommandList(m_CommandList);
return;
}
if (m_FrameStepMode == FrameStepMode::Step)
m_FrameStepMode = FrameStepMode::Wait;
const engine::PerspectiveCamera* activeCamera = nullptr;
uint effectiveFrameIndex = m_RenderFrameIndex;
if (m_ui.animationFrame.has_value())
{
const float animationTime = float(m_ui.animationFrame.value()) * (1.f / 240.f);
auto* animation = m_Scene->GetBenchmarkAnimation();
if (animation && animationTime < animation->GetDuration())
{
(void)animation->Apply(animationTime);
activeCamera = m_Scene->GetBenchmarkCamera();
effectiveFrameIndex = m_ui.animationFrame.value();
m_ui.animationFrame = effectiveFrameIndex + 1;
}
else
{
m_ui.benchmarkResults = m_Profiler->GetAsText();
m_ui.animationFrame.reset();
if (m_args.benchmark)
{
glfwSetWindowShouldClose(GetDeviceManager()->GetWindow(), GLFW_TRUE);
log::info("BENCHMARK RESULTS >>>\n\n%s<<<", m_ui.benchmarkResults.c_str());
}
}
}
bool exposureResetRequired = false;
if (m_ui.enableFpsLimit && GetFrameIndex() > 0)
{
uint64_t expectedFrametime = 1000000 / m_ui.fpsLimit;
while (true)
{
uint64_t currentFrametime = duration_cast<microseconds>(steady_clock::now() - m_PreviousFrameTimeStamp).count();
if(currentFrametime >= expectedFrametime)
break;
#ifdef _WIN32
Sleep(0);
#else
usleep(100);
#endif
}
}
m_PreviousFrameTimeStamp = steady_clock::now();
#if WITH_NRD
if (m_NRD && m_NRD->GetDenoiser() != m_ui.denoisingMethod)
m_NRD = nullptr; // need to create a new one
#endif
if (m_ui.resetISContext)
{
GetDevice()->waitForIdle();
m_isContext = nullptr;
m_RtxdiResources = nullptr;
m_ui.resetISContext = false;
}
if (m_ui.environmentMapDirty == 2)
{
LoadEnvironmentMap();
}
m_Scene->RefreshSceneGraph(GetFrameIndex());
const auto& fbinfo = framebuffer->getFramebufferInfo();
uint32_t renderWidth = fbinfo.width;
uint32_t renderHeight = fbinfo.height;
if (m_args.renderWidth > 0 && m_args.renderHeight > 0)
{
renderWidth = m_args.renderWidth;
renderHeight = m_args.renderHeight;
}
SetupView(renderWidth, renderHeight, activeCamera);
SetupRenderPasses(renderWidth, renderHeight, exposureResetRequired);
if (!m_ui.freezeRegirPosition)
m_RegirCenter = m_Camera.GetPosition();
UpdateReSTIRDIContextFromUI();
UpdateReGIRContextFromUI();
UpdateReSTIRGIContextFromUI();
#if WITH_DLSS
if (!m_ui.dlssAvailable && m_ui.aaMode == AntiAliasingMode::DLSS)