Devyatovskaya task3

src/devyatovskaya/CMakeLists.txt

@@ -1,2 +1,3 @@
 add_subdirectory(Task1)
 add_subdirectory(Task2)
+add_subdirectory(Task3)

src/devyatovskaya/Task3/CMakeLists.txt

@@ -0,0 +1,83 @@
+set(Task3_SRSC
+        main.cpp
+        FPSCounter.cpp
+        FPSCounter.h
+        GLCamera.cpp
+        GLCamera.h
+        GLCameraMover.cpp
+        GLCameraMover.h
+        GLDirectedLight.cpp
+        GLDirectedLight.h
+        GLMaterial.cpp
+        GLMaterial.h
+        GLLightSource.cpp
+        GLLightSource.h
+        GLCubeMeshGenerator.cpp
+        GLCubeMeshGenerator.h
+        GLFlatMeshGenerator.cpp
+        GLFlatMeshGenerator.h
+        GLMesh.cpp
+        GLMesh.h
+        GLMeshGenerator.h
+        GLMeshGenerator.cpp
+        GLMeshRenderer.cpp
+        GLMeshRenderer.h
+        GLMeshRendererGenerator.h
+        GLPointLight.cpp
+        GLPointLight.h
+        GLObject.cpp
+        GLObject.h
+        GLScene.cpp
+        GLScene.h
+        GLSceneRenderer.cpp
+        GLSceneRenderer.h
+        GLSimpleMeshRenderer.h
+        GLSimpleMeshRenderer.cpp
+        GLSimpleMeshRendererGenerator.cpp
+        GLSimpleMeshRendererGenerator.h
+        GLSphereMeshGenerator.cpp
+        GLSphereMeshGenerator.h
+        GLTransform.cpp
+        GLTransform.h
+        GLVertex.h
+        LightingDialog.h
+        LightingDialog.ui
+        GLSpotLight.cpp
+        GLSpotLight.h
+        LigtingDialog.cpp
+        MeshGeneratorCollecrion.h
+        MorphingDialog.cpp
+        MorphingDialog.h
+        MorphingDialog.ui
+        PhongLighting.ui
+        PhongLightingWidget.cpp
+        PhongLightingWidget.h
+        PhongLighting.h
+        PhongLighting.cpp
+        PhongLighting.qrc
+        PreparedScenes.cpp
+        PreparedScenes.h
+        RenderDialog.cpp
+        RenderDialog.h
+        RenderDialog.ui
+        ShaderCollection.h
+        ShaderData.cpp
+        ShaderData.h
+
+        shaders.qrc
+        Shaders/f_morphing.glsl
+        Shaders/v_morphing.glsl
+        Shaders/Lighting/v_light_source.glsl
+        Shaders/Lighting/f_light_source.glsl
+        Shaders/Lighting/v_phong_lighting_wo_normal_mapping.glsl
+        Shaders/Lighting/f_phong_lighting_wo_normal_mapping.glsl
+        Shaders/Lighting/v_guro_lighting_wo_normal_mapping.glsl
+        Shaders/Lighting/f_guro_lighting_wo_normal_mapping.glsl
+        )
+
+find_package(Qt5 COMPONENTS Widgets REQUIRED)
+
+add_executable(DevyatovskayaTask3 ${Task3_SRSC})
+
+target_link_libraries(DevyatovskayaTask3 PRIVATE Qt5::Widgets)
+

src/devyatovskaya/Task3/FPSCounter.cpp

@@ -0,0 +1,30 @@
+#include "FPSCounter.h"
+
+void FPSCounter::calculate_fps() {
+  const auto current_time = std::chrono::system_clock::now();
+  const std::chrono::duration<float> elapsed_seconds =
+      current_time - last_frame_time_;
+  last_frame_time_ = current_time;
+  ++frame_counter_;
+
+  const auto frame_time = elapsed_seconds.count();
+  delta_time_ = frame_time;
+  elapsed_frame_time_ += frame_time;
+
+  // update fps every half second
+  if (elapsed_frame_time_ >= 0.5f) {
+
+    average_fps_ = static_cast<float>(frame_counter_) / elapsed_frame_time_;
+    emit emit_fps("FPS: " + fps_to_str());
+    elapsed_frame_time_ = 0;
+    frame_counter_ = 0;
+  }
+}
+
+float FPSCounter::delta_time() const { return delta_time_; }
+
+QString FPSCounter::fps_to_str() const {
+  QString fps_to_str{};
+  fps_to_str.setNum(average_fps_, 'g', 3);
+  return fps_to_str;
+}

src/devyatovskaya/Task3/FPSCounter.h

@@ -0,0 +1,24 @@
+#pragma once
+#include <QObject>
+#include <chrono>
+
+class FPSCounter final : public QObject {
+
+  Q_OBJECT
+signals:
+  void emit_fps(const QString &);
+
+public:
+  void calculate_fps();
+
+  float delta_time() const;
+
+private:
+  QString fps_to_str() const;
+
+  std::chrono::time_point<std::chrono::system_clock> last_frame_time_;
+  int frame_counter_{0};
+  float delta_time_{0};
+  float average_fps_{0};
+  float elapsed_frame_time_{0};
+};

src/devyatovskaya/Task3/GLCamera.cpp

@@ -0,0 +1,42 @@
+#include "GLCamera.h"
+
+GLCamera::GLCamera(const QVector3D &pos, float _aspect_ratio)
+    : position{pos}, front{0, 0, -1}, right{1, 0, 0}, up{0, 1, 0}, world_up{0,
+                                                                            1,
+                                                                            0},
+
+      fov{60.f}, yaw{-90.0f}, pitch{0.0f},
+      aspect_ratio{_aspect_ratio}, zoom{45.f} {
+  update_camera_vectors();
+}
+
+QMatrix4x4 GLCamera::get_projection_matrix() const {
+  QMatrix4x4 projection;
+  projection.perspective(zoom, aspect_ratio, 0.1f, 1000.0f);
+  return projection;
+}
+
+QMatrix4x4 GLCamera::get_view_matrix() const {
+  QMatrix4x4 view;
+  view.lookAt(position, position + front, up);
+  return view;
+}
+
+void GLCamera::update_camera_vectors() {
+  QVector3D forward;
+
+  forward.setX(cos(qDegreesToRadians(yaw)) * cos(qDegreesToRadians(pitch)));
+  forward.setY(sin(qDegreesToRadians(pitch)));
+  forward.setZ(sin(qDegreesToRadians(yaw)) * cos(qDegreesToRadians(pitch)));
+  front = forward.normalized();
+
+  right = QVector3D::crossProduct(front, world_up).normalized();
+  up = QVector3D::crossProduct(right, front).normalized();
+}
+
+void GLCamera::translate(const QVector3D &mult) {
+  position += front * mult.z();
+  position += right * mult.x();
+  position += up * mult.y();
+  update_camera_vectors();
+}

src/devyatovskaya/Task3/GLCamera.h

@@ -0,0 +1,27 @@
+#pragma once
+#include <QtMath>
+#include <qmatrix4x4.h>
+#include <qvector3d.h>
+
+class GLCamera final {
+public:
+  QVector3D position;
+  QVector3D front;
+  QVector3D right;
+  QVector3D up;
+  QVector3D world_up;
+
+  float fov;
+  float yaw;
+  float pitch;
+  float aspect_ratio;
+  float zoom;
+
+  explicit GLCamera(const QVector3D &pos, float aspect_ratio = 16.f / 9.f);
+
+  QMatrix4x4 get_projection_matrix() const;
+  QMatrix4x4 get_view_matrix() const;
+
+  void update_camera_vectors();
+  void translate(const QVector3D &mult);
+};

src/devyatovskaya/Task3/GLCameraMover.cpp

@@ -0,0 +1,62 @@
+#include "GLCameraMover.h"
+
+void GLCameraMover::move() {
+  const auto &direction =
+      controls_[static_cast<CameraMovement>(last_pressed_key_)];
+  if (direction == QVector3D{0, 0, 0}) {
+    return;
+  }
+
+  camera.translate(direction * current_camera_speed_);
+}
+
+void GLCameraMover::set_camera_speed(const float delta_time) {
+  current_camera_speed_ = initial_camera_speed_ * delta_time;
+}
+
+void GLCameraMover::set_mouse_pos(const QPointF &pos) {
+  if (first_mouse_callback_) {
+    last_mouse_pos_ = pos;
+    first_mouse_callback_ = false;
+    return;
+  }
+
+  update_camera_direction(pos);
+  camera.update_camera_vectors();
+}
+
+void GLCameraMover::update_camera_zoom(const float dy) {
+  if (camera.zoom >= 1.f && camera.zoom <= 45.f) {
+    camera.zoom -= dy;
+  } else if (camera.zoom < 1.f) {
+    camera.zoom = 1.f;
+  } else {
+    camera.zoom = 45.f;
+  }
+}
+
+void GLCameraMover::set_key(const int key) { last_pressed_key_ = key; }
+
+void GLCameraMover::reset_key(const int key) {
+  if (last_pressed_key_ == key) {
+    last_pressed_key_ = std::numeric_limits<int>::max();
+  }
+}
+
+void GLCameraMover::update_camera_pos(const float dx, const float dy) {
+  camera.yaw += dx;
+  camera.pitch += dy;
+  camera.pitch = std::clamp(camera.pitch, -89.0f, 89.0f);
+}
+
+void GLCameraMover::update_camera_direction(const QPointF &pos) {
+  auto x_offset = pos.x() - last_mouse_pos_.x();
+  auto y_offset = last_mouse_pos_.y() - pos.y();
+  last_mouse_pos_ = pos;
+
+  const auto sensitivity = 0.05f;
+  x_offset *= static_cast<qreal>(sensitivity);
+  y_offset *= static_cast<qreal>(sensitivity);
+
+  update_camera_pos(static_cast<float>(x_offset), static_cast<float>(y_offset));
+}

src/devyatovskaya/Task3/GLCameraMover.h

@@ -0,0 +1,47 @@
+#pragma once
+#include "GLCamera.h"
+#include <limits>
+
+enum class CameraMovement {
+  FORWARD = Qt::Key_W,
+  BACKWARD = Qt::Key_S,
+  LEFT = Qt::Key_A,
+  RIGHT = Qt::Key_D,
+  UP = Qt::Key_Space,
+  DOWN = Qt::Key_Shift,
+
+  ROTATE_RIGHT = Qt::Key_Q,
+  ROTATE_LEFT = Qt::Key_E
+};
+
+class GLCameraMover final {
+public:
+  void move();
+  bool activated{false};
+  GLCamera camera{{0, 0, 3}};
+
+  void set_camera_speed(float delta_time);
+  void set_mouse_pos(const QPointF &pos);
+  void update_camera_zoom(float dy);
+  void set_key(int key);
+  void reset_key(int key);
+
+private:
+  int last_pressed_key_{std::numeric_limits<int>::max()};
+  float initial_camera_speed_{10.5f};
+  float current_camera_speed_{initial_camera_speed_};
+
+  QPointF last_mouse_pos_{};
+  bool first_mouse_callback_{true};
+
+  std::map<CameraMovement, QVector3D> controls_ = {
+      {CameraMovement::FORWARD, {0, 0, 1}},
+      {CameraMovement::BACKWARD, {0, 0, -1}},
+      {CameraMovement::LEFT, {-1, 0, 0}},
+      {CameraMovement::RIGHT, {1, 0, 0}},
+      {CameraMovement::UP, {0, 1, 0}},
+      {CameraMovement::DOWN, {0, -1, 0}}};
+
+  void update_camera_pos(float dx, float dy);
+  void update_camera_direction(const QPointF &pos);
+};