renderer.h Example File

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  #ifndef RENDERER_H
  #define RENDERER_H

  #include "vulkanwindow.h"
  #include "mesh.h"
  #include "shader.h"
  #include "camera.h"
  #include <QFutureWatcher>
  #include <QMutex>

  class Renderer : public QVulkanWindowRenderer
  {
  public:
      Renderer(VulkanWindow *w, int initialCount);

      void preInitResources() override;
      void initResources() override;
      void initSwapChainResources() override;
      void releaseSwapChainResources() override;
      void releaseResources() override;

      void startNextFrame() override;

      bool animating() const { return m_animating; }
      void setAnimating(bool a) { m_animating = a; }

      int instanceCount() const { return m_instCount; }
      void addNew();

      void yaw(float degrees);
      void pitch(float degrees);
      void walk(float amount);
      void strafe(float amount);

      void setUseLogo(bool b);

  private:
      void createPipelines();
      void createItemPipeline();
      void createFloorPipeline();
      void ensureBuffers();
      void ensureInstanceBuffer();
      void getMatrices(QMatrix4x4 *mvp, QMatrix4x4 *model, QMatrix3x3 *modelNormal, QVector3D *eyePos);
      void writeFragUni(quint8 *p, const QVector3D &eyePos);
      void buildFrame();
      void buildDrawCallsForItems();
      void buildDrawCallsForFloor();

      void markViewProjDirty() { m_vpDirty = m_window->concurrentFrameCount(); }

      VulkanWindow *m_window;
      QVulkanDeviceFunctions *m_devFuncs;

      bool m_useLogo = false;
      Mesh m_blockMesh;
      Mesh m_logoMesh;
      VkBuffer m_blockVertexBuf = VK_NULL_HANDLE;
      VkBuffer m_logoVertexBuf = VK_NULL_HANDLE;
      struct {
          VkDeviceSize vertUniSize;
          VkDeviceSize fragUniSize;
          VkDeviceSize uniMemStartOffset;
          Shader vs;
          Shader fs;
          VkDescriptorPool descPool = VK_NULL_HANDLE;
          VkDescriptorSetLayout descSetLayout = VK_NULL_HANDLE;
          VkDescriptorSet descSet;
          VkPipelineLayout pipelineLayout = VK_NULL_HANDLE;
          VkPipeline pipeline = VK_NULL_HANDLE;
      } m_itemMaterial;

      VkBuffer m_floorVertexBuf = VK_NULL_HANDLE;
      struct {
          Shader vs;
          Shader fs;
          VkPipelineLayout pipelineLayout = VK_NULL_HANDLE;
          VkPipeline pipeline = VK_NULL_HANDLE;
      } m_floorMaterial;

      VkDeviceMemory m_bufMem = VK_NULL_HANDLE;
      VkBuffer m_uniBuf = VK_NULL_HANDLE;

      VkPipelineCache m_pipelineCache = VK_NULL_HANDLE;
      QFuture<void> m_pipelinesFuture;

      QVector3D m_lightPos;
      Camera m_cam;

      QMatrix4x4 m_proj;
      int m_vpDirty = 0;
      QMatrix4x4 m_floorModel;

      bool m_animating;
      float m_rotation = 0.0f;

      int m_instCount;
      int m_preparedInstCount = 0;
      QByteArray m_instData;
      VkBuffer m_instBuf = VK_NULL_HANDLE;
      VkDeviceMemory m_instBufMem = VK_NULL_HANDLE;

      QFutureWatcher<void> m_frameWatcher;
      bool m_framePending;

      QMutex m_guiMutex;
  };

  #endif