diff options
Diffstat (limited to 'src/States/WorldBuilderState.cpp')
| -rw-r--r-- | src/States/WorldBuilderState.cpp | 173 |
1 files changed, 163 insertions, 10 deletions
diff --git a/src/States/WorldBuilderState.cpp b/src/States/WorldBuilderState.cpp index 70ef3d4..5a27ea1 100644 --- a/src/States/WorldBuilderState.cpp +++ b/src/States/WorldBuilderState.cpp @@ -2,6 +2,7 @@ #include "Core/Application.h" #include "Core/Window.h" +#include "Core/HDRIManager.h" #include "Rendering/Renderer.h" #include "Rendering/Shader.h" @@ -23,6 +24,7 @@ #include <fstream> #include <sstream> #include <limits> +#include <vector> namespace Donut { @@ -42,13 +44,29 @@ namespace Donut m_Camera.SetElevation(static_cast<float>(std::numbers::pi) / 3.0f); m_Camera.UpdateOrbital(); - // Initialize rendering resources once m_SphereShader = Ref<Shader>(Shader::Create("Assets/Shaders/Sphere.glsl")); + m_SkyboxShader = Ref<Shader>(Shader::Create("Assets/Shaders/Skybox.glsl")); + + if (!m_SphereShader) + DONUT_ERROR("Failed to create sphere shader"); + if (!m_SkyboxShader) + DONUT_ERROR("Failed to create skybox shader"); + InitializeSphereGeometry(); + InitializeSkyboxGeometry(); + + auto& hdriManager = HDRIManager::Get(); + m_HDRIEnvironment = hdriManager.GetCurrentHDRI(); + if (!m_HDRIEnvironment) + { + hdriManager.SetCurrentHDRI("Assets/HDRI/HDR_blue_nebulae-1.hdr"); + m_HDRIEnvironment = hdriManager.GetCurrentHDRI(); + if (!m_HDRIEnvironment) + DONUT_WARN("Failed to load default HDRI for WorldBuilder, using fallback"); + } - // Initialize the black hole at the center - Material blackHoleMaterial(glm::vec3(0.0f, 0.0f, 0.0f), 0.0f, 0.0f); // Pure black, no specular, no emission - m_BlackHole = Object(glm::vec3(0.0f, 0.0f, 0.0f), 2.0f, blackHoleMaterial); // Position at origin, radius 2 + Material blackHoleMaterial(glm::vec3(0.0f, 0.0f, 0.0f), 0.0f, 0.0f); + m_BlackHole = Object(glm::vec3(0.0f, 0.0f, 0.0f), 2.0f, blackHoleMaterial); m_BlackHoleInitialized = true; m_Initialized = true; @@ -90,8 +108,15 @@ namespace Donut void WorldBuilderState::OnRender() { + auto& hdriManager = HDRIManager::Get(); + m_HDRIEnvironment = hdriManager.GetCurrentHDRI(); + RenderCommand::SetClearColor(glm::vec4(0.1f, 0.1f, 0.1f, 1.0f)); RenderCommand::Clear(); + + if (m_HDRIEnvironment) + RenderSkybox(); + RenderScene(); } @@ -347,7 +372,6 @@ namespace Donut ImGui::TextColored(ImVec4(0.9f, 0.9f, 1.0f, 1.0f), "New Sphere"); ImGui::Separator(); - // Show object count and limit ImGui::TextColored(ImVec4(0.8f, 0.8f, 0.8f, 1.0f), "Objects: %zu/16", m_Scene.objs.size()); ImGui::Text("Position:"); @@ -367,7 +391,6 @@ namespace Donut ImGui::Spacing(); - // Disable button if object limit reached if (m_Scene.objs.size() >= 16) { ImGui::PushStyleVar(ImGuiStyleVar_Alpha, 0.5f); @@ -468,6 +491,44 @@ namespace Donut ImGui::Spacing(); ImGui::TextColored(ImVec4(0.7f, 0.7f, 0.7f, 1.0f), "White rim around sphere silhouette"); } + + ImGui::Spacing(); + + if (ImGui::CollapsingHeader("HDRI Environment", nullptr)) + { + ImGui::TextColored(ImVec4(0.9f, 0.9f, 1.0f, 1.0f), "HDRI Settings:"); + + static int selectedHDRI = 0; + ImGui::PushID("WorldBuilderHDRI"); + auto& hdriManager = HDRIManager::Get(); + const auto& availableHDRI = hdriManager.GetAvailableHDRI(); + + static std::vector<std::string> hdriOptionNames; + static std::vector<const char*> hdriOptions; + + if (hdriOptionNames.size() != availableHDRI.size()) + { + hdriOptionNames.clear(); + hdriOptions.clear(); + + for (const auto& path : availableHDRI) + { + hdriOptionNames.push_back(hdriManager.GetHDRIName(path)); + hdriOptions.push_back(hdriOptionNames.back().c_str()); + } + } + + if (ImGui::Combo("HDRI Environment", &selectedHDRI, hdriOptions.data(), static_cast<int>(hdriOptions.size()))) + { + auto& hdriManager = HDRIManager::Get(); + hdriManager.SetCurrentHDRI(availableHDRI[selectedHDRI]); + m_HDRIEnvironment = hdriManager.GetCurrentHDRI(); + } + + ImGui::Spacing(); + ImGui::TextColored(ImVec4(0.7f, 0.7f, 0.7f, 1.0f), "HDRI provides background skybox and lighting for the scene"); + ImGui::PopID(); + } ImGui::Spacing(); ImGui::Separator(); @@ -486,11 +547,8 @@ namespace Donut if (ImGui::Button("Start Simulation", ImVec2(ImGui::GetWindowWidth() - 20, 30))) { - // Load objects from WorldBuilder scene into Engine auto& engine = Application::Get().GetEngine(); engine.LoadObjectsFromScene(m_Scene.objs); - - // Switch to simulation state Application::Get().GetStateManager().SwitchToState("Simulation"); } @@ -551,7 +609,6 @@ namespace Donut void WorldBuilderState::AddSphere() { - // Check if we've reached the object limit (16 objects) if (m_Scene.objs.size() >= 16) { DONUT_WARN("Cannot add more objects. Maximum of 16 objects reached."); @@ -768,6 +825,12 @@ namespace Donut m_SphereShader->SetFloat3("u_OutlineColor", m_OutlineColor); m_SphereShader->SetFloat("u_OutlineWidth", m_OutlineWidth); + if (m_HDRIEnvironment) + { + m_HDRIEnvironment->Bind(1); + m_SphereShader->SetInt("u_HDRIEnvironment", 1); + } + if (m_BlackHoleInitialized) { glm::mat4 blackHoleTransform = glm::translate(glm::mat4(1.0f), m_BlackHole.m_Centre); @@ -818,4 +881,94 @@ namespace Donut RenderCommand::DisableDepthTest(); } + + + + void WorldBuilderState::InitializeSkyboxGeometry() + { + float skyboxVertices[] = + { + -1.0f, 1.0f, -1.0f, + -1.0f, -1.0f, -1.0f, + 1.0f, -1.0f, -1.0f, + 1.0f, -1.0f, -1.0f, + 1.0f, 1.0f, -1.0f, + -1.0f, 1.0f, -1.0f, + + -1.0f, -1.0f, 1.0f, + -1.0f, -1.0f, -1.0f, + -1.0f, 1.0f, -1.0f, + -1.0f, 1.0f, -1.0f, + -1.0f, 1.0f, 1.0f, + -1.0f, -1.0f, 1.0f, + + 1.0f, -1.0f, -1.0f, + 1.0f, -1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, + 1.0f, 1.0f, -1.0f, + 1.0f, -1.0f, -1.0f, + + -1.0f, -1.0f, 1.0f, + -1.0f, 1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, + 1.0f, -1.0f, 1.0f, + -1.0f, -1.0f, 1.0f, + + -1.0f, 1.0f, -1.0f, + 1.0f, 1.0f, -1.0f, + 1.0f, 1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, + -1.0f, 1.0f, 1.0f, + -1.0f, 1.0f, -1.0f, + + -1.0f, -1.0f, -1.0f, + -1.0f, -1.0f, 1.0f, + 1.0f, -1.0f, -1.0f, + 1.0f, -1.0f, -1.0f, + -1.0f, -1.0f, 1.0f, + 1.0f, -1.0f, 1.0f + }; + + auto vertexBuffer = Ref<VertexBuffer>(VertexBuffer::Create(skyboxVertices, sizeof(skyboxVertices))); + VertexBufferLayout layout; + layout.Push<float>(3); + vertexBuffer->SetLayout(layout); + + m_SkyboxVAO = Ref<VertexArray>(VertexArray::Create()); + m_SkyboxVAO->AddVertexBuffer(vertexBuffer); + } + + void WorldBuilderState::RenderSkybox() + { + if (!m_SkyboxShader || !m_SkyboxVAO || !m_HDRIEnvironment) + { + return; + } + + GLFWwindow* window = static_cast<GLFWwindow*>(Application::Get().GetWindow().GetNativeWindow()); + int width, height; + glfwGetFramebufferSize(window, &width, &height); + + RenderCommand::SetViewport(0, 0, width, height); + RenderCommand::DisableDepthTest(); + + glm::mat4 view = m_Camera.GetViewMatrix(); + glm::mat4 projection = m_Camera.GetProjectionMatrix(); + + view = glm::mat4(glm::mat3(view)); + + m_SkyboxShader->Bind(); + m_SkyboxShader->SetMat4("u_View", view); + m_SkyboxShader->SetMat4("u_Projection", projection); + + m_HDRIEnvironment->Bind(0); + m_SkyboxShader->SetInt("u_Skybox", 0); + + m_SkyboxVAO->Bind(); + RenderCommand::DrawArrays(36); + + RenderCommand::EnableDepthTest(); + } }; |