feat: complete first geodesic 3D raytracing

3 files changed, 38 insertions, 24 deletions

diff --git a/src/states/config_state.cpp b/src/states/config_state.cpp
index 403f667..d29408b 100644
--- a/src/states/config_state.cpp
+++ b/src/states/config_state.cpp
@@ -22,7 +22,7 @@ namespace Donut
     
     void ConfigState::on_render()
     {
-        Renderer::set_clear_color({ 0.1f, 0.1f, 0.2f, 1.0f });
+        Renderer::set_clear_color({ 0.1f, 0.1f, 0.1f, 1.0f });
         Renderer::clear();
     }
     
diff --git a/src/states/simulation_state.cpp b/src/states/simulation_state.cpp
index fc235ff..e59f1fa 100644
--- a/src/states/simulation_state.cpp
+++ b/src/states/simulation_state.cpp
@@ -22,11 +22,11 @@ namespace Donut
     
     void SimulationState::on_update(float delta_time)
     {
-        
+        m_engine.update_performance(delta_time);
         m_engine.update_window_dimensions();
         m_engine.update_physics(delta_time);
-        
-        if (m_engine.get_camera().is_dragging()) 
+
+        if (m_engine.get_camera().is_dragging())
         {
             GLFWwindow* window = static_cast<GLFWwindow*>(Application::get().get_window().get_native_window());
             double xpos, ypos;
@@ -37,34 +37,28 @@ namespace Donut
     
     void SimulationState::on_render()
     {
-        if (!m_initialized) return;
-        
         RenderCommand::set_clear_color(glm::vec4(0.0f, 0.0f, 0.0f, 1.0f));
         RenderCommand::clear();
-        
-        m_engine.generate_grid(m_engine.get_objects());
-        
-        glm::mat4 view = glm::lookAt(m_engine.get_camera().get_orbital_position(), m_engine.get_camera().get_target(), glm::vec3(0,1,0));
-        glm::mat4 proj = glm::perspective(glm::radians(60.0f), float(m_engine.get_width())/m_engine.get_height(), 1e9f, 1e14f);
-        glm::mat4 view_proj = proj * view;
-        
-        m_engine.draw_grid(view_proj);
-        
         RenderCommand::set_viewport(0, 0, m_engine.get_width(), m_engine.get_height());
+
         m_engine.dispatch_compute(m_engine.get_camera());
         m_engine.draw_full_screen_quad();
     }
     
     void SimulationState::on_event(Event& event)
     {
-        if (!m_initialized) return;
-        
         if (event.get_event_type() == EventType::MouseButtonPressed)
         {
             MouseButtonPressedEvent& e = (MouseButtonPressedEvent&)event;
             int button = e.get_mouse_button();
             
-            m_engine.get_camera().process_orbital_mouse_button(button, GLFW_PRESS, 0);
+            GLFWwindow* window = static_cast<GLFWwindow*>(Application::get().get_window().get_native_window());
+            Camera& camera = m_engine.get_camera();
+            double last_x = camera.get_last_x();
+            double last_y = camera.get_last_y();
+            glfwGetCursorPos(window, &last_x, &last_y);
+            
+            camera.process_orbital_mouse_button(button, GLFW_PRESS, 0);
         }
         else if (event.get_event_type() == EventType::MouseButtonReleased)
         {
@@ -84,7 +78,7 @@ namespace Donut
             KeyPressedEvent& e = (KeyPressedEvent&)event;
             if (e.get_key_code() == GLFW_KEY_G)
             {
-                m_engine.set_gravity(!m_engine.get_gravity());
+                m_engine.get_gravity() = !m_engine.get_gravity();
                 DONUT_INFO("Gravity turned {}", m_engine.get_gravity() ? "ON" : "OFF");
             }
         }
@@ -109,6 +103,27 @@ namespace Donut
         
         ImGui::Separator();
         
+        ImGui::Text("Performance:");
+        ImGui::Text("Engine FPS: %.1f", m_engine.get_current_fps());
+        ImGui::Text("Target FPS: %d", m_engine.get_target_fps());
+        
+        int target_fps = m_engine.get_target_fps();
+        if (ImGui::SliderInt("Target FPS", &target_fps, 30, 120))
+        {
+            m_engine.set_target_fps(target_fps);
+        }
+        
+        int compute_height = m_engine.get_compute_height();
+        if (ImGui::SliderInt("Compute Height", &compute_height, 64, 2048))
+        {
+            m_engine.set_compute_height(compute_height);
+            m_engine.update_compute_dimensions();
+        }
+        
+        ImGui::Text("Compute Width: %d (auto-calculated)", m_engine.get_compute_width());
+        
+        ImGui::Separator();
+        
         ImGui::Text("Controls:");
         ImGui::Text("Left Mouse: Orbit camera");
         ImGui::Text("Scroll: Zoom in/out");
@@ -118,16 +133,15 @@ namespace Donut
         ImGui::Separator();
         
         ImGui::Text("Physics:");
-        bool gravity = m_engine.get_gravity();
-        if (ImGui::Checkbox("Gravity Enabled", &gravity))
-            m_engine.set_gravity(gravity);
+        bool& gravity = m_engine.get_gravity();
+        ImGui::Checkbox("Gravity Enabled", &gravity);
         
         ImGui::Text("Camera:");
         ImGui::Text("Position: (%.2e, %.2e, %.2e)", 
                    m_engine.get_camera().get_orbital_position().x, 
                    m_engine.get_camera().get_orbital_position().y, 
                    m_engine.get_camera().get_orbital_position().z);
-        ImGui::Text("Radius: %.2e", m_engine.get_camera().get_radius());
+        ImGui::Text("Radius: %.2e", m_engine.get_camera().get_orbital_radius());
         ImGui::Text("Azimuth: %.2f", m_engine.get_camera().get_azimuth());
         ImGui::Text("Elevation: %.2f", m_engine.get_camera().get_elevation());
         
diff --git a/src/states/simulation_state.h b/src/states/simulation_state.h
index 68788e8..cc55901 100644
--- a/src/states/simulation_state.h
+++ b/src/states/simulation_state.h
@@ -23,6 +23,6 @@ namespace Donut
     
     private:
         Engine m_engine;
-        bool   m_initialized = false;
+        bool m_initialized = false;
     };
 };