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App.cpp
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#include "App.h"
#include <scene/SceneSerializer.h>
#include <chrono>
#include <thread>
const Atlas::EngineConfig Atlas::EngineInstance::engineConfig = {
#ifdef AE_BUNDLE
.assetDirectory = "../Resources/data",
#else
.assetDirectory = "../../data",
#endif
.shaderDirectory = "shader"
};
using namespace Atlas::Scene::Components;
using namespace Atlas::Scene::Prefabs;
using namespace Atlas::ImguiExtension;
void App::LoadContent() {
renderTarget = Atlas::CreateRef<Atlas::Renderer::RenderTarget>(1920, 1080);
pathTraceTarget = Atlas::CreateRef<Atlas::Renderer::PathTracerRenderTarget>(1920, 1080);
viewport = Atlas::CreateRef<Atlas::Viewport>(0, 0, renderTarget->GetWidth(), renderTarget->GetHeight());
auto icon = Atlas::Texture::Texture2D("icon.png");
window.SetIcon(&icon);
loadingTexture = Atlas::CreateRef<Atlas::Texture::Texture2D>("loading.png");
font = Atlas::CreateRef<Atlas::Font>("font/roboto.ttf", 22.0f, 5);
scene = Atlas::CreateRef<Atlas::Scene::Scene>("demoScene", glm::vec3(-2048.0f), glm::vec3(2048.0f));
cameraEntity = scene->CreateEntity();
auto& camera = cameraEntity.AddComponent<CameraComponent>(47.0f, 2.0f, 1.0f, 400.0f,
glm::vec3(30.0f, 25.0f, 0.0f), glm::vec2(-3.14f / 2.0f, 0.0f));
mouseHandler = Atlas::Input::MouseHandler(1.5f, 8.0f);
keyboardHandler = Atlas::Input::KeyboardHandler(7.0f, 5.0f);
controllerHandler = Atlas::Input::ControllerHandler(1.0f, 5.0f, 10.0f, 5000.0f);
Atlas::Events::EventManager::KeyboardEventDelegate.Subscribe(
[this](Atlas::Events::KeyboardEvent event) {
if (event.keyCode == Keycode::KeyEscape) {
Exit();
}
if (event.keyCode == Keycode::KeyF11 && event.state == AE_BUTTON_RELEASED) {
renderUI = !renderUI;
}
if (event.keyCode == Keycode::KeyLeftShift && event.state == AE_BUTTON_PRESSED) {
keyboardHandler.speed = cameraSpeed * 4.0f;
}
if (event.keyCode == Keycode::KeyLeftShift && event.state == AE_BUTTON_RELEASED) {
keyboardHandler.speed = cameraSpeed;
}
});
Atlas::Events::EventManager::MouseButtonEventDelegate.Subscribe(
[this](Atlas::Events::MouseButtonEvent event) {
if (event.button == AE_MOUSEBUTTON_RIGHT) {
shootSphere = event.down && shootSpheresEnabled;
}
});
Atlas::PipelineManager::EnableHotReload();
directionalLightEntity = scene->CreateEntity();
auto& directionalLight = directionalLightEntity.AddComponent<LightComponent>(LightType::DirectionalLight);
directionalLight.properties.directional.direction = glm::vec3(0.0f, -1.0f, 1.0f);
directionalLight.color = glm::vec3(255, 236, 209) / 255.0f;
directionalLight.AddDirectionalShadow(200.0f, 3.0f, 4096, 0.125f,
glm::vec3(0.0f), glm::vec4(-100.0f, 100.0f, -70.0f, 120.0f));
directionalLight.isMain = true;
scene->ao = Atlas::CreateRef<Atlas::Lighting::AO>(16);
scene->ao->rt = true;
// Use SSGI by default
scene->ao->enable = false;
scene->reflection = Atlas::CreateRef<Atlas::Lighting::Reflection>();
scene->reflection->useShadowMap = true;
scene->fog = Atlas::CreateRef<Atlas::Lighting::Fog>();
scene->fog->enable = true;
scene->fog->density = 0.0002f;
scene->fog->heightFalloff = 0.0284f;
scene->fog->height = 0.0f;
scene->sky.atmosphere = Atlas::CreateRef<Atlas::Lighting::Atmosphere>();
scene->postProcessing.taa = Atlas::PostProcessing::TAA(0.99f);
scene->postProcessing.sharpen.enable = true;
scene->postProcessing.sharpen.factor = 0.15f;
scene->sss = Atlas::CreateRef<Atlas::Lighting::SSS>();
scene->ssgi = Atlas::CreateRef<Atlas::Lighting::SSGI>();
scene->rtgi = Atlas::CreateRef<Atlas::Lighting::RTGI>();
scene->rtgi->enable = graphicsDevice->support.hardwareRayTracing;
scene->rtgi->useShadowMap = true;
scene->physicsWorld = Atlas::CreateRef<Atlas::Physics::PhysicsWorld>();
scene->rayTracingWorld = Atlas::CreateRef<Atlas::RayTracing::RayTracingWorld>();
LoadScene();
imguiWrapper = Atlas::CreateRef<Atlas::ImguiExtension::ImguiWrapper>();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
imguiWrapper->Load(&window);
}
void App::UnloadContent() {
UnloadScene();
imguiWrapper->Unload();
}
void App::Update(float deltaTime) {
if (sceneReload) {
UnloadScene();
LoadScene();
sceneReload = false;
}
const ImGuiIO& io = ImGui::GetIO();
imguiWrapper->Update(&window, deltaTime);
if (io.WantCaptureMouse) {
mouseHandler.lock = true;
}
else {
mouseHandler.lock = false;
}
auto& camera = cameraEntity.GetComponent<CameraComponent>();
if (controllerHandler.IsControllerAvailable()) {
controllerHandler.Update(camera, deltaTime);
}
else {
mouseHandler.Update(camera, deltaTime);
keyboardHandler.Update(camera, deltaTime);
}
if (rotateCamera) {
camera.rotation.y += rotateCameraSpeed * cos(Atlas::Clock::Get());
}
if (moveCamera) {
camera.location += camera.right * moveCameraSpeed * cos(Atlas::Clock::Get());
}
if (sceneSelection == SPONZA) {
auto meshEntitySubset = scene->GetSubset<MeshComponent, TransformComponent>();
int idx = 0;
for (auto entity : meshEntitySubset) {
if (idx++ >= 3)
continue;
const auto& [meshComponent, transformComponent] = meshEntitySubset.Get(entity);
if (!meshComponent.mesh.IsLoaded())
continue;
if (meshComponent.mesh->name == "chromesphere") {
float height = (sinf(Atlas::Clock::Get() / 5.0f) + 1.0f) * 20.0f;
auto matrix = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, height, .0f));
transformComponent.Set(matrix);
}
else if (meshComponent.mesh->name == "metallicwall") {
auto matrix = glm::translate(glm::mat4(1.0f), glm::vec3(-50.0f, 0.0f, -2.0f));
matrix = glm::rotate(matrix, Atlas::Clock::Get() / 2.0f, glm::vec3(0.0f, 1.0f, 0.0f));
transformComponent.Set(matrix);
}
}
}
if (scene->IsFullyLoaded() && emitSpheresEnabled) {
static float lastSpawn = 0.0f;
if (Atlas::Clock::Get() - emitSpawnRate > lastSpawn) {
auto x = (2.0f * Atlas::Common::Random::SampleFastUniformFloat() - 1.0f) * 20.0f;
auto z = (2.0f * Atlas::Common::Random::SampleFastUniformFloat() - 1.0f) * 20.0f;
auto matrix = glm::translate(glm::mat4(1.0f), glm::vec3(x, 100.0f, z));
auto entity = scene->CreatePrefab<MeshInstance>(meshes.back(), matrix, false);
auto shapeSettings = Atlas::Physics::SphereShapeSettings{
.radius = meshes.back()->data.radius,
.density = sphereDensity,
.scale = glm::vec3(sphereScale),
};
auto shape = Atlas::Physics::ShapesManager::CreateShape(shapeSettings);
auto bodySettings = Atlas::Physics::BodyCreationSettings{
.objectLayer = Atlas::Physics::Layers::Movable,
.restitution = sphereRestitution,
.shape = shape,
};
auto& rigidBodyComponent = entity.AddComponent<RigidBodyComponent>(bodySettings);
rigidBodyComponent.SetRestitution(sphereRestitution);
entities.push_back(entity);
lastSpawn = Atlas::Clock::Get();
}
}
if (scene->IsFullyLoaded() && shootSphere) {
static float lastSpawn = 0.0f;
if (Atlas::Clock::Get() - shootSpawnRate > lastSpawn) {
auto shapeSettings = Atlas::Physics::SphereShapeSettings{
.radius = meshes.back()->data.radius,
.density = sphereDensity,
.scale = glm::vec3(sphereScale),
};
auto shape = Atlas::Physics::ShapesManager::CreateShape(shapeSettings);
auto matrix = glm::translate(glm::mat4(1.0f), glm::vec3(camera.GetLocation() +
camera.direction * meshes.back()->data.radius * 2.0f));
auto entity = scene->CreatePrefab<MeshInstance>(meshes.back(), matrix, false);
auto bodySettings = Atlas::Physics::BodyCreationSettings{
.objectLayer = Atlas::Physics::Layers::Movable,
.motionQuality = Atlas::Physics::MotionQuality::LinearCast,
.linearVelocity = camera.direction * shootVelocity,
.restitution = sphereRestitution,
.shape = shape,
};
entity.AddComponent<RigidBodyComponent>(bodySettings);
entities.push_back(entity);
lastSpawn = Atlas::Clock::Get();
}
}
scene->Timestep(deltaTime);
scene->Update();
CheckLoadScene();
}
void App::Render(float deltaTime) {
static bool firstFrame = true;
static bool animateLight = false;
static bool pathTrace = false;
static bool debugAo = false;
static bool debugReflection = false;
static bool debugClouds = false;
static bool debugSSS = false;
static bool debugSSGI = false;
static bool debugRTGI = false;
static bool debugMotion = false;
static bool slowMode = false;
static float cloudDepthDebug = 0.0f;
graphicsDevice->WaitForPreviousFrameSubmission();
#ifndef AE_HEADLESS
auto windowFlags = window.GetFlags();
if (windowFlags & AE_WINDOW_HIDDEN || windowFlags & AE_WINDOW_MINIMIZED || !(windowFlags & AE_WINDOW_SHOWN)) {
// If we take the early way out we need to make sure that stuff is completed (usually main renderer takes care of that)
scene->WaitForAsyncWorkCompletion();
return;
}
#endif
if (!loadingComplete) {
DisplayLoadingScreen(deltaTime);
// If we take the early way out we need to make sure that stuff is completed
scene->WaitForAsyncWorkCompletion();
return;
}
auto& directionalLight = directionalLightEntity.GetComponent<LightComponent>();
if (animateLight) directionalLight.properties.directional.direction
= glm::vec3(0.0f, -1.0f, sin(Atlas::Clock::Get() / 10.0f));
if (pathTrace) {
viewport->Set(0, 0, pathTraceTarget->GetWidth(), pathTraceTarget->GetHeight());
mainRenderer->PathTraceScene(viewport, pathTraceTarget, scene);
}
else {
mainRenderer->RenderScene(viewport, renderTarget, scene);
auto debug = debugAo || debugReflection || debugClouds || debugSSS || debugSSGI || debugRTGI || debugMotion;
if (debug && graphicsDevice->swapChain->isComplete) {
auto commandList = graphicsDevice->GetCommandList(Atlas::Graphics::GraphicsQueue);
commandList->BeginCommands();
commandList->BeginRenderPass(graphicsDevice->swapChain, true);
if (debugAo) {
mainRenderer->textureRenderer.RenderTexture2D(commandList, viewport, &renderTarget->aoTexture,
0.0f, 0.0f, float(viewport->width), float(viewport->height), 0.0, 1.0f, false, true);
}
else if (debugReflection) {
mainRenderer->textureRenderer.RenderTexture2D(commandList, viewport, &renderTarget->reflectionTexture,
0.0f, 0.0f, float(viewport->width), float(viewport->height), 0.0, 1.0f, false, true);
}
else if (debugClouds) {
mainRenderer->textureRenderer.RenderTexture2D(commandList, viewport, &renderTarget->volumetricCloudsTexture,
0.0f, 0.0f, float(viewport->width), float(viewport->height), 0.0, 1.0f, false, true);
}
else if (debugSSS) {
mainRenderer->textureRenderer.RenderTexture2D(commandList, viewport, &renderTarget->sssTexture,
0.0f, 0.0f, float(viewport->width), float(viewport->height), 0.0, 1.0f, false, true);
}
else if (debugSSGI || debugRTGI) {
mainRenderer->textureRenderer.RenderTexture2D(commandList, viewport, &renderTarget->giTexture,
0.0f, 0.0f, float(viewport->width), float(viewport->height), 0.0, 1.0f, false, true);
}
else if (debugMotion) {
mainRenderer->textureRenderer.RenderTexture2D(commandList, viewport,
renderTarget->GetData(Atlas::Renderer::FULL_RES)->velocityTexture.get(),
0.0f, 0.0f, float(viewport->width), float(viewport->height), 0.0, 10.0f, false, true);
}
commandList->EndRenderPass();
commandList->EndCommands();
graphicsDevice->SubmitCommandList(commandList);
}
}
float averageFramerate = Atlas::Clock::GetAverage();
// ImGui rendering
if (renderUI) {
static bool recreateSwapchain = false;
ImGui::NewFrame();
auto& camera = cameraEntity.GetComponent<CameraComponent>();
auto& light = directionalLightEntity.GetComponent<LightComponent>();
auto& volume = scene->irradianceVolume;
auto& ao = scene->ao;
auto& fog = scene->fog;
auto& reflection = scene->reflection;
auto& clouds = scene->sky.clouds;
auto& sss = scene->sss;
auto& ssgi = scene->ssgi;
auto& rtgi = scene->rtgi;
auto& postProcessing = scene->postProcessing;
bool openSceneNotFoundPopup = false;
auto floatToString = [](auto number) -> std::string {
auto str = std::to_string(number);
auto pos = str.find(".");
if (pos != std::string::npos)
return str.substr(0, pos + 4);
return str;
};
auto vecToString = [=](auto vec) -> std::string {
return floatToString(vec.x) + ", "
+ floatToString(vec.y) + ", "
+ floatToString(vec.z);
};
uint32_t triangleCount = 0;
auto sceneAABB = Atlas::Volume::AABB();
for (auto& mesh : meshes) {
if (!mesh.IsLoaded())
continue;
sceneAABB.Grow(mesh->data.aabb);
triangleCount += mesh->data.GetIndexCount() / 3;
}
if (ImGui::Begin("Settings", (bool*)0, ImGuiWindowFlags_HorizontalScrollbar)) {
if (pathTrace) ImGui::Text("Samples: %d", mainRenderer->pathTracingRenderer.GetSampleCount());
ImGui::Text("Average frametime: %.3f ms", averageFramerate * 1000.0f);
ImGui::Text("Current frametime: %.3f ms", deltaTime * 1000.0f);
ImGui::Text("Camera location: %s", vecToString(camera.location).c_str());
ImGui::Text("Scene dimensions: %s to %s", vecToString(sceneAABB.min).c_str(), vecToString(sceneAABB.max).c_str());
ImGui::Text("Scene triangle count: %d", triangleCount);
ImGui::Text("Number of entities: %zu", scene->GetEntityCount());
{
const char* items[] = { "Cornell box", "Sponza", "San Miguel",
"New Sponza", "Bistro", "Medieval", "Pica Pica",
"Subway", "Materials", "Forest", "Emerald square",
"Flying world" };
int currentItem = static_cast<int>(sceneSelection);
ImGui::Combo("Select scene", ¤tItem, items, IM_ARRAYSIZE(items));
if (currentItem != sceneSelection) {
auto newSceneSelection = static_cast<SceneSelection>(currentItem);
if (IsSceneAvailable(newSceneSelection)) {
sceneSelection = newSceneSelection;
sceneReload = true;
}
else {
openSceneNotFoundPopup = true;
}
}
}
if (ImGui::CollapsingHeader("General")) {
static bool fullscreenMode = false;
static bool vsyncMode = false;
bool hdrMode = graphicsDevice->swapChain->IsHDR();
bool fullscreen = fullscreenMode;
bool vsync = vsyncMode;
bool hdr = hdrMode;
ImGui::Checkbox("VSync##General", &vsync);
ImGui::Checkbox("Fullscreen##General", &fullscreen);
ImGui::Checkbox("HDR##General", &hdr);
if (vsync != vsyncMode || hdr != hdrMode) {
Atlas::Graphics::ColorSpace colorSpace = Atlas::Graphics::SRGB_NONLINEAR;
if (hdr) {
colorSpace = Atlas::Graphics::HDR10_HLG;
}
graphicsDevice->SubmitFrame();
if (vsync) graphicsDevice->CreateSwapChain(VK_PRESENT_MODE_FIFO_KHR, colorSpace);
else graphicsDevice->CreateSwapChain(VK_PRESENT_MODE_IMMEDIATE_KHR, colorSpace);
vsyncMode = vsync;
hdrMode = hdr;
imguiWrapper->RecreateImGuiResources();
graphicsDevice->WaitForIdle();
recreateSwapchain = true;
}
if (fullscreen != fullscreenMode) {
if (fullscreen) {
windowWidth = window.GetWidth();
windowHeight = window.GetHeight();
window.SetSize(GetScreenSize().x, GetScreenSize().y);
window.SetFullscreen(true);
}
else {
window.SetSize(windowWidth, windowHeight);
window.SetFullscreen(false);
}
fullscreenMode = fullscreen;
}
const char* items[] = { "1280x720", "1920x1080", "2560x1440", "3840x2160" };
static int resolution = 1;
int currentItem = resolution;
ImGui::Combo("Resolution##Rendering", ¤tItem, items, IM_ARRAYSIZE(items));
if (currentItem != resolution) {
resolution = currentItem;
switch (resolution) {
case 0: SetResolution(1280, 720); break;
case 1: SetResolution(1920, 1080); break;
case 2: SetResolution(2560, 1440); break;
case 3: SetResolution(3840, 2160); break;
}
}
auto resolutionScale = renderTarget->GetScalingFactor();
ImGui::DragFloat("Resolution scale##Rendering", &resolutionScale, 0.01f, 0.1f, 1.0f);
if (renderTarget->GetScalingFactor() != resolutionScale)
renderTarget->SetScalingFactor(resolutionScale);
}
if (ImGui::CollapsingHeader("Pathtracing")) {
bool pathTraceEnabled = pathTrace;
ImGui::Checkbox("Enable##Pathtrace", &pathTrace);
ImGui::SliderInt("Bounces##Pathtrace", &mainRenderer->pathTracingRenderer.bounces, 0, 100);
ImGui::Checkbox("Sample emissives##Pathtrace", &mainRenderer->pathTracingRenderer.sampleEmissives);
ImGui::Text("Realtime");
ImGui::Checkbox("Realtime##Pathtrace", &mainRenderer->pathTracingRenderer.realTime);
ImGui::SliderInt("Samples per frame##Pathtrace", &mainRenderer->pathTracingRenderer.realTimeSamplesPerFrame, 1, 100);
ImGui::Text("Realtime denoiser");
ImGui::SliderInt("Max accumulated frames##Pathtrace", &mainRenderer->pathTracingRenderer.historyLengthMax, 1, 256);
ImGui::SliderFloat("Current clip##Pathtrace", &mainRenderer->pathTracingRenderer.currentClipFactor, 0.1f, 4.0f);
ImGui::SliderFloat("Max history clip##Pathtrace", &mainRenderer->pathTracingRenderer.historyClipMax, 0.0f, 1.0f);
scene->rayTracingWorld->includeObjectHistory = pathTrace;
}
if (ImGui::CollapsingHeader("DDGI")) {
irradianceVolumePanel.Render(volume, scene);
}
if (ImGui::CollapsingHeader("RTGI")) {
ImGui::Checkbox("Debug##RTGI", &debugRTGI);
rtgiPanel.Render(rtgi, renderTarget);
}
if (ImGui::CollapsingHeader("SSGI")) {
ImGui::Checkbox("Debug##SSGI", &debugSSGI);
ssgiPanel.Render(ssgi, renderTarget);
}
if (ImGui::CollapsingHeader("Light")) {
ImGui::Checkbox("Animate", &animateLight);
ImGui::SliderFloat3("Direction", &light.properties.directional.direction[0], -1.0f, 1.0f);
ImGui::ColorEdit3("Color", &light.color[0]);
ImGui::SliderFloat("Intensity##Light", &light.intensity, 0.0, 1000.0f, "%.3f", ImGuiSliderFlags_Logarithmic);
ImGui::Separator();
ImGui::Text("Shadow");
auto shadow = light.shadow;
const char* gridResItems[] = { "512x512", "1024x1024", "2048x2048", "4096x4096", "8192x8192" };
int currentItem = 0;
if (shadow->resolution == 512) currentItem = 0;
if (shadow->resolution == 1024) currentItem = 1;
if (shadow->resolution == 2048) currentItem = 2;
if (shadow->resolution == 4096) currentItem = 3;
if (shadow->resolution == 8192) currentItem = 4;
auto prevItem = currentItem;
ImGui::Combo("Resolution##Shadow", ¤tItem, gridResItems, IM_ARRAYSIZE(gridResItems));
if (currentItem != prevItem) {
switch (currentItem) {
case 0: shadow->SetResolution(512); break;
case 1: shadow->SetResolution(1024); break;
case 2: shadow->SetResolution(2048); break;
case 3: shadow->SetResolution(4096); break;
case 4: shadow->SetResolution(8192); break;
}
}
ImGui::SliderFloat("Bias##Shadow", &shadow->bias, 0.0f, 2.0f);
ImGui::DragFloat("Edge softness##Shadow", &shadow->edgeSoftness, 0.005f, 0.0f, 1.0f);
}
if (ImGui::CollapsingHeader("Screen-space shadows")) {
ImGui::Checkbox("Debug##SSS", &debugSSS);
sssPanel.Render(sss);
}
if (ImGui::CollapsingHeader("Ambient Occlusion")) {
ImGui::Checkbox("Debug##Ao", &debugAo);
ImGui::Checkbox("Enable ambient occlusion##Ao", &ao->enable);
ImGui::Checkbox("Enable raytracing (preview)##Ao", &ao->rt);
ImGui::Checkbox("Opacity check##Ao", &ao->opacityCheck);
ImGui::SliderFloat("Radius##Ao", &ao->radius, 0.0f, 10.0f);
ImGui::SliderFloat("Strength##Ao", &ao->strength, 0.0f, 20.0f, "%.3f", ImGuiSliderFlags_Logarithmic);
//ImGui::SliderInt("Sample count##Ao", &ao->s, 0.0f, 20.0f, "%.3f", 2.0f);
}
if (ImGui::CollapsingHeader("Reflection")) {
ImGui::Checkbox("Debug##Reflection", &debugReflection);
reflectionPanel.Render(reflection, renderTarget);
}
if (ImGui::CollapsingHeader("Camera")) {
ImGui::SliderFloat("Exposure##Camera", &camera.exposure, 0.0f, 10.0f);
ImGui::SliderFloat("Speed##Camera", &cameraSpeed, 0.0f, 20.0f);
ImGui::SliderFloat("FOV##Camera", &camera.fieldOfView, 0.0f, 90.0f);
keyboardHandler.speed = cameraSpeed;
ImGui::Separator();
ImGui::Text("Camera debugging");
ImGui::Checkbox("Show motion vectors##MotionVecs", &debugMotion);
ImGui::Checkbox("Move camera", &moveCamera);
ImGui::Checkbox("Rotate camera", &rotateCamera);
}
if (ImGui::CollapsingHeader("Fog")) {
fogPanel.Render(fog, renderTarget);
}
if (ImGui::CollapsingHeader("Clouds")) {
ImGui::Checkbox("Debug##Clouds", &debugClouds);
volumetricCloudsPanel.Render(clouds, renderTarget);
}
if (ImGui::CollapsingHeader("Wind")) {
windPanel.Render(imguiWrapper, scene->wind);
}
if (ImGui::CollapsingHeader("Postprocessing")) {
postProcessingPanel.Render(postProcessing);
}
if (ImGui::CollapsingHeader("Physics")) {
ImGui::Checkbox("Pause simulation##Phyiscs", &scene->physicsWorld->pauseSimulation);
ImGui::Text("Sphere body");
ImGui::SliderFloat("Sphere scale##PhysicsBody", &sphereScale, 1.0f, 10.0f);
ImGui::SliderFloat("Sphere density##PhysicsBody", &sphereDensity, 1.0f, 100.0f);
ImGui::SliderFloat("Sphere restitution##PhysicsBody", &sphereRestitution, 0.0f, 1.0f);
ImGui::Text("Sphere emitter");
ImGui::Checkbox("Enable##PhysicsEmitter", &emitSpheresEnabled);
ImGui::SliderFloat("Spawn rate##PhysicsEmitter", &emitSpawnRate, 0.001f, 1.0f);
ImGui::Separator();
ImGui::Text("Shoot spheres");
ImGui::Checkbox("Enable##PhysicsShoot", &shootSpheresEnabled);
ImGui::SliderFloat("Spawn rate##PhysicsShoot", &shootSpawnRate, 0.001f, 1.0f);
ImGui::SliderFloat("Velocity##PhysicsShoot", &shootVelocity, 0.0f, 100.0f);
if (ImGui::Button("Save state##Physics")) {
scene->physicsWorld->SaveState();
}
ImGui::SameLine();
if (ImGui::Button("Restore state##Physics")) {
scene->physicsWorld->RestoreState();
}
}
if (ImGui::CollapsingHeader("Materials")) {
int32_t id = 0;
auto materials = scene->GetMaterials();
materialsPanel.Render(imguiWrapper, materials);
}
if (ImGui::CollapsingHeader("Controls")) {
ImGui::Text("Use WASD for movement");
ImGui::Text("Use left mouse click + mouse movement to look around");
ImGui::Text("Use F11 to hide/unhide the UI");
}
if (ImGui::CollapsingHeader("Profiler")) {
gpuProfilerPanel.Render();
}
}
ImGui::End();
if (openSceneNotFoundPopup) {
ImGui::OpenPopup("Scene not found");
}
if (ImGui::BeginPopupModal("Scene not found")) {
ImGui::Text("Please download additional scenes with the download script in the data directory");
ImGui::Text("There is a script for both Linux and Windows");
ImGui::Text("Note: Not all scene might be downloadable");
if (ImGui::Button("Close##SceneNotFound")) {
ImGui::CloseCurrentPopup();
}
ImGui::EndPopup();
}
ImGui::Render();
if (!recreateSwapchain) {
imguiWrapper->Render();
}
recreateSwapchain = false;
}
if (slowMode) { using namespace std::chrono_literals; std::this_thread::sleep_for(60ms); }
if (firstFrame) {
// We want to get rid of the current average
// window which includes the loading times
Atlas::Clock::ResetAverage();
firstFrame = false;
}
}
void App::DisplayLoadingScreen(float deltaTime) {
auto commandList = graphicsDevice->GetCommandList();
commandList->BeginCommands();
graphicsDevice->swapChain->colorClearValue.color = { 0.0f, 0.0f, 0.0f, 1.0f };
commandList->BeginRenderPass(graphicsDevice->swapChain, true);
auto windowSize = window.GetDrawableSize();
float width = float(loadingTexture->width);
float height = float(loadingTexture->height);
float x = windowSize.x / 2 - width / 2;
float y = windowSize.y / 2 - height / 2;
static float rotation = 0.0f;
rotation += deltaTime * abs(sin(Atlas::Clock::Get())) * 10.0f;
mainRenderer->textureRenderer.RenderTexture2D(commandList, viewport,
loadingTexture.get(), x, y, width, height, rotation);
float textWidth, textHeight;
font->ComputeDimensions("Loading...", 2.0f, &textWidth, &textHeight);
x = windowSize.x / 2 - textWidth / 2;
y = windowSize.y / 2 - textHeight / 2 + float(loadingTexture->height) + 20.0f;
viewport->Set(0, 0, windowSize.x, windowSize.y);
mainRenderer->textRenderer.Render(commandList, viewport, font,
"Loading...", x, y, glm::vec4(1.0f, 1.0f, 1.0f, 1.0f), 2.0f);
commandList->EndRenderPass();
commandList->EndCommands();
graphicsDevice->SubmitCommandList(commandList);
}
bool App::IsSceneAvailable(SceneSelection selection) {
switch (selection) {
case CORNELL: return Atlas::Loader::AssetLoader::FileExists("cornell/CornellBox-Original.obj");
case SPONZA: return Atlas::Loader::AssetLoader::FileExists("sponza/sponza.obj");
case BISTRO: return Atlas::Loader::AssetLoader::FileExists("bistro/mesh/exterior.obj");
case SANMIGUEL: return Atlas::Loader::AssetLoader::FileExists("sanmiguel/san-miguel-low-poly.obj");
case MEDIEVAL: return Atlas::Loader::AssetLoader::FileExists("medieval/scene.fbx");
case PICAPICA: return Atlas::Loader::AssetLoader::FileExists("pica pica/mesh/scene.gltf");
case SUBWAY: return Atlas::Loader::AssetLoader::FileExists("subway/scene.gltf");
case MATERIALS: return Atlas::Loader::AssetLoader::FileExists("material demo/materials.obj");
case FOREST: return Atlas::Loader::AssetLoader::FileExists("forest/forest.gltf");
case EMERALDSQUARE: return Atlas::Loader::AssetLoader::FileExists("emeraldsquare/square.gltf");
case FLYINGWORLD: return Atlas::Loader::AssetLoader::FileExists("flying world/scene.gltf");
case NEWSPONZA: return Atlas::Loader::AssetLoader::FileExists("newsponza/main/NewSponza_Main_Blender_glTF.gltf") &&
Atlas::Loader::AssetLoader::FileExists("newsponza/candles/NewSponza_100sOfCandles_glTF_OmniLights.gltf") &&
Atlas::Loader::AssetLoader::FileExists("newsponza/curtains/NewSponza_Curtains_glTF.gltf") &&
Atlas::Loader::AssetLoader::FileExists("newsponza/ivy/NewSponza_IvyGrowth_glTF.gltf");
default: return false;
}
}
bool App::LoadScene() {
bool successful = false;
loadingComplete = false;
Atlas::ResourceHandle<Atlas::Texture::Cubemap> sky;
auto& directionalLight = directionalLightEntity.GetComponent<LightComponent>();
directionalLight.properties.directional.direction = glm::vec3(0.0f, -1.0f, 1.0f);
auto& camera = cameraEntity.GetComponent<CameraComponent>();
scene->sky.clouds = Atlas::CreateRef<Atlas::Lighting::VolumetricClouds>();
scene->sky.clouds->minHeight = 1400.0f;
scene->sky.clouds->maxHeight = 1700.0f;
scene->sky.clouds->castShadow = false;
scene->sky.probe = nullptr;
scene->sky.clouds->enable = true;
scene->sss->enable = true;
using namespace Atlas::Loader;
std::vector<glm::mat4> transforms;
if (sceneSelection == CORNELL) {
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"cornell/CornellBox-Original.obj", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.push_back(glm::scale(glm::mat4(1.0f), glm::vec3(10.0f)));
// Other scene related settings apart from the mesh
directionalLight.intensity = 0.0f;
// Setup camera
camera.location = glm::vec3(0.0f, 14.0f, 40.0f);
camera.rotation = glm::vec2(-3.14f, -0.1f);
scene->fog->enable = false;
scene->fog->volumetricIntensity = 0.0f;
}
else if (sceneSelection == SPONZA) {
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"sponza/sponza.obj", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.push_back(glm::scale(glm::mat4(1.0f), glm::vec3(.05f)));
mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"metallicwall.gltf", ModelImporter::ImportMesh, Atlas::Mesh::MeshMobility::Movable, false, 2048
);
meshes.push_back(mesh);
transforms.emplace_back(1.0f);
// Other scene related settings apart from the mesh
directionalLight.properties.directional.direction = glm::vec3(0.0f, -1.0f, 0.33f);
directionalLight.intensity = 100.0f;
// Setup camera
camera.location = glm::vec3(30.0f, 25.0f, 0.0f);
camera.rotation = glm::vec2(-3.14f / 2.0f, 0.0f);
camera.exposure = 0.125f;
scene->fog->enable = true;
scene->fog->volumetricIntensity = 0.28f;
}
else if (sceneSelection == BISTRO) {
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"bistro/mesh/exterior.obj", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.push_back(glm::scale(glm::mat4(1.0f), glm::vec3(.015f)));
// Other scene related settings apart from the mesh
directionalLight.intensity = 100.0f;
// Setup camera
camera.location = glm::vec3(-21.0f, 8.0f, 1.0f);
camera.rotation = glm::vec2(3.14f / 2.0f, 0.0f);
camera.exposure = 0.125f;
scene->fog->enable = true;
scene->fog->volumetricIntensity = 0.28f;
}
else if (sceneSelection == SANMIGUEL) {
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"sanmiguel/san-miguel-low-poly.obj", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.push_back(glm::scale(glm::mat4(1.0f), glm::vec3(2.0f)));
// Other scene related settings apart from the mesh
directionalLight.intensity = 100.0f;
directionalLight.properties.directional.direction = glm::vec3(0.0f, -1.0f, -1.0f);
// Setup camera
camera.location = glm::vec3(45.0f, 26.0f, 17.0f);
camera.rotation = glm::vec2(-4.14f / 2.0f, -.6f);
camera.exposure = 2.5f;
scene->fog->enable = true;
scene->fog->volumetricIntensity = 0.28f;
}
else if (sceneSelection == MEDIEVAL) {
meshes.reserve(1);
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"medieval/scene.fbx", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.emplace_back(1.0f);
// Metalness is set to 0.9f
//for (auto& material : mesh.data.materials) material.metalness = 0.0f;
// Other scene related settings apart from the mesh
directionalLight.intensity = 10.0f;
// Setup camera
camera.location = glm::vec3(30.0f, 25.0f, 0.0f);
camera.rotation = glm::vec2(-3.14f / 2.0f, 0.0f);
scene->fog->enable = true;
scene->fog->volumetricIntensity = 0.08f;
}
else if (sceneSelection == PICAPICA) {
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"pica pica/mesh/scene.gltf", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.push_back(glm::rotate(glm::mat4(1.0f), -3.14f / 2.0f, glm::vec3(1.0f, 0.0f, 0.0f)));
// Other scene related settings apart from the mesh
directionalLight.intensity = 10.0f;
// Setup camera
camera.location = glm::vec3(30.0f, 25.0f, 0.0f);
camera.rotation = glm::vec2(-3.14f / 2.0f, 0.0f);
camera.exposure = 1.0f;
scene->fog->enable = true;
scene->fog->volumetricIntensity = 0.08f;
}
else if (sceneSelection == SUBWAY) {
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"subway/scene.gltf", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.emplace_back(1.0f);
// Other scene related settings apart from the mesh
directionalLight.intensity = 10.0f;
// Setup camera
camera.location = glm::vec3(30.0f, 25.0f, 0.0f);
camera.rotation = glm::vec2(-3.14f / 2.0f, 0.0f);
camera.exposure = 1.0f;
scene->fog->enable = false;
scene->fog->volumetricIntensity = 0.08f;
}
else if (sceneSelection == MATERIALS) {
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"material demo/materials.obj", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.push_back(glm::scale(glm::vec3(8.0f)));
sky = Atlas::ResourceManager<Atlas::Texture::Cubemap>::GetOrLoadResourceAsync("environment.hdr");
probe = Atlas::Lighting::EnvironmentProbe(sky);
scene->sky.probe = Atlas::CreateRef(probe);
// Other scene related settings apart from the mesh
directionalLight.intensity = 10.0f;
// Setup camera
camera.location = glm::vec3(30.0f, 25.0f, 0.0f);
camera.rotation = glm::vec2(-3.14f / 2.0f, 0.0f);
camera.exposure = 1.0f;
scene->fog->enable = false;
scene->sky.clouds->enable = false;
scene->sss->enable = true;
scene->fog->volumetricIntensity = 0.0f;
}
else if (sceneSelection == FOREST) {
auto otherScene = Atlas::Loader::ModelImporter::ImportScene("forest/forest.gltf", -glm::vec3(2048.0f), glm::vec3(2048.0f), 5);
otherScene->Timestep(1.0f);
CopyActors(otherScene);
// Other scene related settings apart from the mesh
directionalLight.intensity = 50.0f;
// Setup camera
camera.location = glm::vec3(30.0f, 25.0f, 0.0f);
camera.rotation = glm::vec2(-3.14f / 2.0f, 0.0f);
camera.exposure = 1.0f;
scene->fog->enable = false;
scene->fog->volumetricIntensity = 0.08f;
}
else if (sceneSelection == EMERALDSQUARE) {
auto otherScene = Atlas::Loader::ModelImporter::ImportScene("emeraldsquare/square.gltf", -glm::vec3(2048.0f), glm::vec3(2048.0f), 5);
otherScene->Timestep(1.0f);
CopyActors(otherScene);
// Other scene related settings apart from the mesh
directionalLight.intensity = 10.0f;
// Setup camera
camera.location = glm::vec3(30.0f, 25.0f, 0.0f);
camera.rotation = glm::vec2(-3.14f / 2.0f, 0.0f);
camera.exposure = 1.0f;
scene->fog->enable = false;
scene->fog->volumetricIntensity = 0.08f;
}
else if (sceneSelection == FLYINGWORLD) {
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"flying world/scene.gltf", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.emplace_back(glm::scale(glm::vec3(0.01f)));
// Metalness is set to 0.9f
//for (auto& material : mesh.data.materials) material.metalness = 0.0f;
// Other scene related settings apart from the mesh
directionalLight.intensity = 50.0f;
// Setup camera
camera.location = glm::vec3(30.0f, 25.0f, 0.0f);
camera.rotation = glm::vec2(-3.14f / 2.0f, 0.0f);
camera.exposure = 1.0f;
scene->sky.clouds->minHeight = 700.0f;
scene->sky.clouds->maxHeight = 1000.0f;
scene->sky.clouds->densityMultiplier = 0.65f;
scene->sky.clouds->heightStretch = 1.0f;
scene->fog->enable = true;
scene->fog->volumetricIntensity = 0.08f;
}
else if (sceneSelection == NEWSPONZA) {
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"newsponza/main/NewSponza_Main_Blender_glTF.gltf", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.emplace_back(glm::scale(glm::vec3(4.0f)));
mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"newsponza/candles/NewSponza_100sOfCandles_glTF_OmniLights.gltf", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.emplace_back(glm::scale(glm::vec3(4.0f)));
mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"newsponza/curtains/NewSponza_Curtains_glTF.gltf", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.emplace_back(glm::scale(glm::vec3(4.0f)));
mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"newsponza/ivy/NewSponza_IvyGrowth_glTF.gltf", ModelImporter::ImportMesh, false, 2048
);
meshes.push_back(mesh);
transforms.emplace_back(glm::scale(glm::vec3(4.0f)));
// Other scene related settings apart from the mesh
directionalLight.properties.directional.direction = glm::vec3(0.0f, -1.0f, 0.33f);
directionalLight.intensity = 100.0f;
// Setup camera
camera.location = glm::vec3(30.0f, 25.0f, 0.0f);
camera.rotation = glm::vec2(-3.14f / 2.0f, 0.0f);
scene->fog->enable = true;
scene->fog->volumetricIntensity = 0.28f;
}
// scene.sky.probe = std::make_shared<Atlas::Lighting::EnvironmentProbe>(sky);
// Load chrome sphere for every scene in order to test physics
auto mesh = Atlas::ResourceManager<Atlas::Mesh::Mesh>::GetOrLoadResourceWithLoaderAsync(
"chromesphere.gltf", ModelImporter::ImportMesh, Atlas::Mesh::MeshMobility::Movable, false, 2048