adding more gui

src/scene/Renderer.h

@@ -1,33 +1,44 @@
 #pragma once
 #include "Scene.h"
-#include "window/Window.h"
-#include "util/Camera.h"
 #include "ThreadPool.h"
+#include "util/Camera.h"
+#include "window/Window.h"
+#include <numeric>
 
 struct RenderParameter
 {
-    int width;
-    int height;
-    int numSamples;
+  int width;
+  int height;
+  int numSamples;
 };
 
 class Renderer
 {
-  public:
-    Renderer();
-    virtual ~Renderer();
-    void startRender(Camera cam, RenderParameter params);
-    constexpr const std::vector<glm::vec3>& getImage() const { return image; }
-  private:
-    virtual void render(Camera cam, RenderParameter params);
-    ThreadPool threadPool;
-    std::thread worker;
-    std::atomic_bool pendingCancel = false;
-    // the thing being displayed
-    std::vector<glm::vec3> image;
-    // radiance accumulator
-    std::vector<glm::vec3> accumulator;
-    std::vector<PointLight> pointLights;
-    std::vector<DirectionalLight> directionalLights;
-    Scene bvh;
+public:
+  Renderer();
+  virtual ~Renderer();
+  void startRender(Camera cam, RenderParameter params);
+  constexpr const std::vector<glm::vec3>& getImage() const { return image; }
+  constexpr const std::vector<float>& getSampleTimes() const { return sampleTimes; }
+  constexpr const float getLastSampleTime() const { return sampleTimes.back(); }
+  constexpr const float getAverageSampleTime() const
+  {
+    return std::accumulate(sampleTimes.begin(), sampleTimes.end(), 0.0f) / sampleTimes.size();
+  }
+
+private:
+  virtual void render(Camera cam, RenderParameter params);
+  ThreadPool threadPool;
+  std::thread worker;
+  std::atomic_bool pendingCancel = false;
+  std::vector<float> sampleTimes;
+  float lastSampleTime;
+  float averageSampleTime;
+  // the thing being displayed
+  std::vector<glm::vec3> image;
+  // radiance accumulator
+  std::vector<glm::vec3> accumulator;
+  std::vector<PointLight> pointLights;
+  std::vector<DirectionalLight> directionalLights;
+  Scene bvh;
 };