221 lines
8.3 KiB
C++
221 lines
8.3 KiB
C++
#include <Nazara/Core.hpp>
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#include <Nazara/Platform.hpp>
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#include <Nazara/Graphics.hpp>
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#include <Nazara/Graphics/PropertyHandler/TexturePropertyHandler.hpp>
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#include <Nazara/Graphics/PropertyHandler/UniformValuePropertyHandler.hpp>
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#include <Nazara/Renderer.hpp>
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#include <Nazara/Utility.hpp>
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#include <array>
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#include <chrono>
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#include <iostream>
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#include <thread>
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int main()
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{
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std::filesystem::path resourceDir = "assets/examples";
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if (!std::filesystem::is_directory(resourceDir) && std::filesystem::is_directory("../.." / resourceDir))
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resourceDir = "../.." / resourceDir;
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Nz::Renderer::Config rendererConfig;
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#ifndef NAZARA_PLATFORM_WEB
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std::cout << "Run using Vulkan? (y/n)" << std::endl;
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if (std::getchar() == 'y')
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rendererConfig.preferredAPI = Nz::RenderAPI::Vulkan;
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else
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rendererConfig.preferredAPI = Nz::RenderAPI::OpenGL;
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#endif
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Nz::Application<Nz::Graphics> app(rendererConfig);
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auto& windowingApp = app.AddComponent<Nz::WindowingAppComponent>();
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std::shared_ptr<Nz::RenderDevice> device = Nz::Graphics::Instance()->GetRenderDevice();
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std::string windowTitle = "Graphics Test";
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Nz::Window& window = windowingApp.CreateWindow(Nz::VideoMode(1280, 720), windowTitle);
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Nz::WindowSwapchain windowSwapchain(device, window);
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Nz::ModelParams modelParams;
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modelParams.mesh.center = true;
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modelParams.mesh.vertexRotation = Nz::EulerAnglesf(0.f, -90.f, 0.f);
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modelParams.mesh.vertexScale = Nz::Vector3f(0.002f);
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modelParams.mesh.vertexDeclaration = Nz::VertexDeclaration::Get(Nz::VertexLayout::XYZ_Normal_UV);
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std::shared_ptr<Nz::Model> spaceshipModel = Nz::Model::LoadFromFile(resourceDir / "Spaceship/spaceship.obj", modelParams);
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if (!spaceshipModel)
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{
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NazaraError("failed to load model");
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return __LINE__;
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}
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std::shared_ptr<Nz::MaterialInstance> materialInstance = spaceshipModel->GetMaterial(0);
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std::shared_ptr<Nz::MaterialInstance> materialInstance2 = Nz::MaterialInstance::Instantiate(Nz::MaterialType::Basic);
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materialInstance2->SetValueProperty(0, Nz::Color::Green());
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Nz::Vector2ui windowSize = window.GetSize();
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Nz::Camera camera(std::make_shared<Nz::RenderWindow>(windowSwapchain));
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camera.UpdateClearColor(Nz::Color::Gray());
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Nz::ViewerInstance& viewerInstance = camera.GetViewerInstance();
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viewerInstance.UpdateTargetSize(Nz::Vector2f(window.GetSize()));
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viewerInstance.UpdateProjViewMatrices(Nz::Matrix4f::Perspective(Nz::DegreeAnglef(70.f), float(windowSize.x) / windowSize.y, 0.1f, 1000.f), Nz::Matrix4f::Translate(Nz::Vector3f::Backward() * 1));
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viewerInstance.UpdateNearFarPlanes(0.1f, 1000.f);
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Nz::WorldInstancePtr modelInstance = std::make_shared<Nz::WorldInstance>();
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modelInstance->UpdateWorldMatrix(Nz::Matrix4f::Translate(Nz::Vector3f::Forward() * 2 + Nz::Vector3f::Left()));
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Nz::WorldInstancePtr modelInstance2 = std::make_shared<Nz::WorldInstance>();
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modelInstance2->UpdateWorldMatrix(Nz::Matrix4f::Translate(Nz::Vector3f::Forward() * 2 + Nz::Vector3f::Right()));
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Nz::Recti scissorBox(Nz::Vector2i::Zero(), Nz::Vector2i(window.GetSize()));
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Nz::ElementRendererRegistry elementRegistry;
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Nz::ForwardFramePipeline framePipeline(elementRegistry);
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[[maybe_unused]] std::size_t cameraIndex = framePipeline.RegisterViewer(&camera, 0);
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std::size_t worldInstanceIndex1 = framePipeline.RegisterWorldInstance(modelInstance);
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std::size_t worldInstanceIndex2 = framePipeline.RegisterWorldInstance(modelInstance2);
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framePipeline.RegisterRenderable(worldInstanceIndex1, Nz::FramePipeline::NoSkeletonInstance, spaceshipModel.get(), 0xFFFFFFFF, scissorBox);
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framePipeline.RegisterRenderable(worldInstanceIndex2, Nz::FramePipeline::NoSkeletonInstance, spaceshipModel.get(), 0xFFFFFFFF, scissorBox);
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std::unique_ptr<Nz::SpotLight> light = std::make_unique<Nz::SpotLight>();
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light->UpdateInnerAngle(Nz::DegreeAnglef(15.f));
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light->UpdateOuterAngle(Nz::DegreeAnglef(20.f));
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framePipeline.RegisterLight(light.get(), 0xFFFFFFFF);
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Nz::Vector3f viewerPos = Nz::Vector3f::Zero();
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Nz::EulerAnglesf camAngles(0.f, 0.f, 0.f);
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Nz::Quaternionf camQuat(camAngles);
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Nz::MillisecondClock updateClock;
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Nz::MillisecondClock fpsClock;
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unsigned int fps = 0;
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Nz::Mouse::SetRelativeMouseMode(true);
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window.GetEventHandler().OnEvent.Connect([&](const Nz::WindowEventHandler*, const Nz::WindowEvent& event)
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{
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switch (event.type)
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{
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case Nz::WindowEventType::Quit:
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window.Close();
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break;
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case Nz::WindowEventType::KeyPressed:
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if (event.key.virtualKey == Nz::Keyboard::VKey::A)
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{
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for (std::size_t i = 0; i < spaceshipModel->GetSubMeshCount(); ++i)
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spaceshipModel->SetMaterial(i, materialInstance);
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}
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else if (event.key.virtualKey == Nz::Keyboard::VKey::B)
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{
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for (std::size_t i = 0; i < spaceshipModel->GetSubMeshCount(); ++i)
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spaceshipModel->SetMaterial(i, materialInstance2);
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}
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else if (event.key.virtualKey == Nz::Keyboard::VKey::Space)
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{
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modelInstance->UpdateWorldMatrix(Nz::Matrix4f::Translate(viewerPos));
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}
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break;
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case Nz::WindowEventType::MouseMoved: // La souris a bougé
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{
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// Gestion de la caméra free-fly (Rotation)
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float sensitivity = 0.3f; // Sensibilité de la souris
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// On modifie l'angle de la caméra grâce au déplacement relatif sur X de la souris
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camAngles.yaw = camAngles.yaw - event.mouseMove.deltaX * sensitivity;
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camAngles.yaw.Normalize();
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// Idem, mais pour éviter les problèmes de calcul de la matrice de vue, on restreint les angles
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camAngles.pitch = Nz::Clamp(camAngles.pitch - event.mouseMove.deltaY*sensitivity, -89.f, 89.f);
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camQuat = camAngles;
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light->UpdateRotation(camQuat);
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break;
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}
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case Nz::WindowEventType::Resized:
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{
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Nz::Vector2ui newWindowSize = window.GetSize();
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viewerInstance.UpdateProjectionMatrix(Nz::Matrix4f::Perspective(Nz::DegreeAnglef(70.f), float(newWindowSize.x) / newWindowSize.y, 0.1f, 1000.f));
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viewerInstance.UpdateTargetSize(Nz::Vector2f(newWindowSize));
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break;
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}
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default:
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break;
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}
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});
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app.AddUpdaterFunc([&]
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{
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if (std::optional<Nz::Time> deltaTime = updateClock.RestartIfOver(Nz::Time::TickDuration(60)))
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{
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float cameraSpeed = 2.f * deltaTime->AsSeconds();
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if (Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::Up) || Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::Z))
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viewerPos += camQuat * Nz::Vector3f::Forward() * cameraSpeed;
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// Si la flèche du bas ou la touche S est pressée, on recule
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if (Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::Down) || Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::S))
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viewerPos += camQuat * Nz::Vector3f::Backward() * cameraSpeed;
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// Etc...
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if (Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::Left) || Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::Q))
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viewerPos += camQuat * Nz::Vector3f::Left() * cameraSpeed;
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// Etc...
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if (Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::Right) || Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::D))
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viewerPos += camQuat * Nz::Vector3f::Right() * cameraSpeed;
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// Majuscule pour monter, notez l'utilisation d'une direction globale (Non-affectée par la rotation)
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if (Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::LShift) || Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::RShift))
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viewerPos += Nz::Vector3f::Up() * cameraSpeed;
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// Contrôle (Gauche ou droite) pour descendre dans l'espace global, etc...
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if (Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::LControl) || Nz::Keyboard::IsKeyPressed(Nz::Keyboard::VKey::RControl))
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viewerPos += Nz::Vector3f::Down() * cameraSpeed;
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light->UpdatePosition(viewerPos);
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}
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Nz::RenderFrame frame = windowSwapchain.AcquireFrame();
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if (!frame)
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{
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std::this_thread::sleep_for(std::chrono::milliseconds(1));
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return;
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}
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framePipeline.GetDebugDrawer().DrawLine(Nz::Vector3f::Zero(), Nz::Vector3f::Forward(), Nz::Color::Blue());
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for (const Nz::WorldInstancePtr& worldInstance : { modelInstance, modelInstance2 })
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{
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Nz::Boxf aabb = spaceshipModel->GetAABB();
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aabb.Transform(worldInstance->GetWorldMatrix());
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framePipeline.GetDebugDrawer().DrawBox(aabb, Nz::Color::Green());
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}
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viewerInstance.UpdateViewMatrix(Nz::Matrix4f::TransformInverse(viewerPos, camAngles));
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viewerInstance.UpdateEyePosition(viewerPos);
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framePipeline.Render(frame);
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frame.Present();
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// On incrémente le compteur de FPS improvisé
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fps++;
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if (fpsClock.RestartIfOver(Nz::Time::Second()))
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{
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window.SetTitle(windowTitle + " - " + Nz::NumberToString(fps) + " FPS");
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fps = 0;
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}
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});
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return app.Run();
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}
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