From 5006149c8d1f0d240180e20c2063f07dac1d4b57 Mon Sep 17 00:00:00 2001
From: Nigel Barink <nigelbarink@hotmail.com>
Date: Sat, 20 May 2023 22:08:43 +0200
Subject: [PATCH] Adding Perfomance monitor, Adding screenshot to README.md

---
 PBR_Screenshot.png |  3 +++
 README.md          | 11 +++++++++++
 src/main.cpp       | 12 ++++++++++--
 3 files changed, 24 insertions(+), 2 deletions(-)
 create mode 100644 PBR_Screenshot.png

diff --git a/PBR_Screenshot.png b/PBR_Screenshot.png
new file mode 100644
index 0000000..aea36df
--- /dev/null
+++ b/PBR_Screenshot.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8c32f73e0b0eae9eae8b2435e93405f11724dd15f3297a30e160025f87a15d49
+size 819586
diff --git a/README.md b/README.md
index 8903d72..00fba48 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,16 @@
 # Learn OpenGL 
 ![OpenGL logo](https://www.opengl.org/sdk/inc/img/opengl_logo.png)
+
+
+
+
+## Screenshot :)
+
+![PBR!!](PBR_Screenshot.png)
+
+
+
+
 ## Resources Used 
 [learnopengl.com](learnopengl.com)  \
 [en.cppreference.com](en.cppreference.com)
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index aa0dd85..d2e147b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -9,6 +9,7 @@
 #include <imgui.h>
 #include <backends/imgui_impl_glfw.h>
 #include <backends/imgui_impl_opengl3.h>
+#include <chrono>
 
 #define STB_IMAGE_IMPLEMENTATION
 #include <stb_image.h>
@@ -78,7 +79,7 @@ public:
          float currentFrame = glfwGetTime();
          deltaTime = currentFrame - lastFrame;
          lastFrame = currentFrame; 
-
+         int fps = 1000 / (std::round(deltaTime/ 0.001) * 0.001);
          glfwPollEvents();
          processInput(window.ptr());
          renderer.Render(scene);
@@ -89,6 +90,13 @@ public:
          ImGui::NewFrame();
          ImGui::ShowDemoWindow(nullptr);
 
+         ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(0.0f, 0.0f, 0.0f, 0.6f));
+         ImGui::Begin("##Performance");
+         ImGui::Text("Frame time: %5.3f", deltaTime);
+         ImGui::Text("FPS: %d", fps  );
+         ImGui::End();
+         ImGui::PopStyleColor();
+
          ImGui::Render();
 
          ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
@@ -110,7 +118,7 @@ void processInput( GLFWwindow* window)
    if(glfwGetKey(window,GLFW_KEY_ESCAPE) == GLFW_PRESS)
       glfwSetWindowShouldClose(window, true);
 
-   const float CameraSpeed = 0.5f * deltaTime; 
+   const float CameraSpeed = 0.8f * deltaTime; 
    if(glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS)
       scene.MainCamera.ProcessKeyboard(FORWARD, CameraSpeed);
    if(glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS)