I’m building a video game engine using C++ as the coding language and Vulkan for graphics. I am trying to set up a generic renderer using Vulkan that is flexible and will render objects based on a vector that is supplied to it. The renderer will also handle the creation of the window using GLFW and use GLM for all relevant math calls. I am using the ASSIMP library to load 3d models and animations.

Here is a portion of the code:

BufferUtils.h:

#pragma once

#include <vulkan/vulkan.h>
#include <stdint.h>

namespace BufferUtils
{
    void CreateBuffer(
        VkDevice device, VkPhysicalDevice physicalDevice,
        VkDeviceSize size, VkBufferUsageFlags usage, VkMemoryPropertyFlags properties,
        VkBuffer& buffer, VkDeviceMemory& bufferMemory);

    uint32_t FindMemoryType(VkPhysicalDevice physicalDevice, uint32_t typeFilter, VkMemoryPropertyFlags properties);

    void CopyBuffer(
        VkDevice device, VkCommandPool commandPool, VkQueue graphicsQueue,
        VkBuffer srcBuffer, VkBuffer dstBuffer, VkDeviceSize size);
}


Camera.h:

#pragma once

#include <glm/glm.hpp>

class Camera
{
public:
	Camera();
	~Camera();

	void Initialize(float aspectRatio);
	void Shutdown();

	void SetPosition(const glm::vec3& position);
	void SetRotation(const glm::vec3& rotation);

	const glm::mat4& GetViewMatrix() const;
	const glm::mat4& GetProjectionMatrix() const;

private:
	glm::vec3 position;
	glm::vec3 rotation;
	glm::mat4 viewMatrix;
	glm::mat4 projectionMatrix;

	void UpdateViewMatrix();
};

Engine.h:

#pragma once

#include "Window.h"
#include "Renderer.h"
#include "Scene.h"
#include <chrono>
#include <thread>

class Engine
{
public:
	Engine();
	~Engine();

	void Run();
	void Shutdown();

	int MaxFPS = 60;

private:

	void Initialize();
	void MainLoop();
	void Update(float deltaTime);
	void Render();

	Window window;
	Renderer renderer;
	Scene scene;
};

GameObject.h:

#pragma once

#include <glm/glm.hpp>
#include "Mesh.h"
#include "Material.h"
#include "Camera.h"
#include "Renderer.h"

class GameObject
{
public:
	GameObject();
	~GameObject();

	void Initialize();
	void Initialize2(Renderer& renderer);
	void Update(float deltaTime);
	void Render(Renderer& renderer, const Camera& camera);
	void Shutdown();

	void SetPosition(const glm::vec3& position);
	void SetRotation(const glm::vec3& rotation);
	void SetScale(const glm::vec3& scale);

	Mesh* GetMesh();
	Material* GetMaterial();

private:
	glm::mat4 modelMatrix;
	glm::vec3 position;
	glm::vec3 rotation;
	glm::vec3 scale;

	VkDeviceMemory mvpBufferMemory;
	VkBuffer mvpBuffer;

	Mesh* mesh;
	Material* material;

	bool initialized = false;

	void UpdateModelMatrix();
};

Material.h:

#pragma once

#include <vulkan/vulkan.h>
#include "Texture.h"
#include "Shader.h"
#include <stdexcept>
#include <memory> // Don’t forget to include <memory>
#include <array>

// Add this struct outside the Material class, possibly at the top of Material.cpp
struct ShaderDeleter {
    void operator()(Shader* shaderPtr) {
        if (shaderPtr != nullptr) {
            Shader::Cleanup(shaderPtr);
        }
    }
};

class Material
{
public:
    Material();
    ~Material();

    void Initialize(const std::string& vertShaderPath, const std::string& fragShaderPath, const std::string& texturePath, VkDevice device, VkDescriptorSetLayout descriptorSetLayout, VkDescriptorPool descriptorPool, VkPhysicalDevice physicalDevice, VkCommandPool commandPool, VkQueue graphicsQueue);
    void Cleanup();

    void LoadTexture(const std::string& filename, VkDevice device, VkPhysicalDevice physicalDevice, VkCommandPool commandPool, VkQueue graphicsQueue);
    void LoadShaders(const std::string& vertFilename, const std::string& fragFilename, VkDevice device);

    void UpdateBufferBinding(VkBuffer newBuffer, VkDevice device, VkDeviceSize devicesize);
    VkDescriptorSet GetDescriptorSet() const;
    VkPipelineLayout GetPipelineLayout() const;

    std::shared_ptr <Shader> GetvertexShader();
    std::shared_ptr <Shader> GetfragmentShader();
    void CreateDescriptorSet(VkBuffer uniformBuffer, VkDeviceSize bufferSize);

private:
    VkDevice device;
    std::shared_ptr <Shader> vertexShader;
    std::shared_ptr <Shader> fragmentShader;
    std::shared_ptr<Texture> texture;

    
    void CreatePipelineLayout(VkDescriptorSetLayout descriptorSetLayout);
    

    VkDescriptorSet descriptorSet;
    VkPipelineLayout pipelineLayout;

    VkDescriptorSetLayout descriptorSetLayout;// = VK_NULL_HANDLE;

    VkDescriptorPool descriptorPool;

    void CleanupDescriptorSetLayout();
};

Mesh.h:

#pragma once

#include <vector>
#include <vulkan/vulkan.h>
#include <glm/glm.hpp>
#include "BufferUtils.h"

struct Vertex {
	glm::vec3 position;
	glm::vec3 color;
	glm::vec2 texCoord;
};

class Mesh
{
public:
	Mesh();
	~Mesh();

	void Initialize(std::vector<Vertex> vertices, std::vector<uint32_t> indices, VkDevice device, VkPhysicalDevice physicalDevice, VkCommandPool commandPool, VkQueue graphicsQueue);
	void Initialize(VkDevice device, VkPhysicalDevice physicalDevice, VkCommandPool commandPool, VkQueue graphicsQueue);
	void Cleanup();

	const std::vector<Vertex>& GetVertices() const;
	const std::vector<uint32_t>& GetIndices() const;
	VkBuffer GetVertexBuffer() const;
	VkBuffer GetIndexBuffer() const;

	void SetVertices(const std::vector<Vertex>& vertices);
	void SetIndices(const std::vector<uint32_t>& indices);

	std::vector<VkVertexInputBindingDescription> GetVertexInputBindingDescriptions() const;
	std::vector<VkVertexInputAttributeDescription> GetVertexInputAttributeDescriptions() const;

private:
	VkDevice device;
	std::vector<Vertex> vertices;
	std::vector<uint32_t> indices;

	VkBuffer vertexBuffer;
	VkDeviceMemory vertexBufferMemory;
	VkBuffer indexBuffer;
	VkDeviceMemory indexBufferMemory;
};

Model.h:

#pragma once

#include <assimp/Importer.hpp>
#include <assimp/scene.h>
#include <assimp/postprocess.h>
#include "Mesh.h"
#include <string>
#include <vector>
#include <vulkan/vulkan.h>
#include <stdexcept>

class Model
{
public:
    Model();
    ~Model();

    void LoadModel(const std::string& filepath, VkDevice device, VkPhysicalDevice physicalDevice, VkCommandPool commandPool, VkQueue graphicsQueue);
    void Cleanup();

    const std::vector<Mesh>& GetMeshes() const;

private:
    std::vector<Mesh> meshes;

    void LoadNode(aiNode* node, const aiScene* scene, VkDevice device, VkPhysicalDevice physicalDevice, VkCommandPool commandPool, VkQueue graphicsQueue);
    Mesh LoadMesh(aiMesh* mesh, const aiScene* scene);
};

Pipeline.h:

#pragma once

#include <vulkan/vulkan.h>
#include <vector>
#include <array>
#include <stdexcept>
#include "Shader.h"

class Pipeline
{
public:
	Pipeline();
	~Pipeline();

	void CreateGraphicsPipeline(const std::vector<VkVertexInputBindingDescription>& vertexBindingDescriptions,
		const std::vector<VkVertexInputAttributeDescription>& vertexAttributeDescriptions,
		VkExtent2D swapchainExtent,
		const std::vector<Shader*>& shaders,
		VkRenderPass renderPass,
		VkPipelineLayout pipelineLayout,
		VkDevice device);

	void Cleanup();

	VkPipeline GetPipeline() const;

	bool IsInitialized() const;

private:
	VkDevice device;
	VkPipeline pipeline;
	bool initialized;

	void CreateShaderStages(const std::vector<Shader*>& shaders, std::vector<VkPipelineShaderStageCreateInfo>& shaderStages);
};

Renderer.h:

#pragma once

#include <vulkan/vulkan.h>
#include "Window.h"
#include <vector>
#include <stdexcept>
#include <set>
#include <optional>
#include <iostream>
#include "Pipeline.h"
#include "Material.h"
#include "Mesh.h"

struct QueueFamilyIndices
{
	std::optional<uint32_t> graphicsFamily;
	std::optional<uint32_t> presentFamily;

	bool IsComplete()
	{
		return graphicsFamily.has_value() && presentFamily.has_value();
	}
};

struct SwapChainSupportDetails {
	VkSurfaceCapabilitiesKHR capabilities;
	std::vector<VkSurfaceFormatKHR> formats;
	std::vector<VkPresentModeKHR> presentModes;
};

struct MVP {
	glm::mat4 model;
	glm::mat4 view;
	glm::mat4 projection;
};


class Renderer
{
public:
	Renderer();
	~Renderer();

	void Initialize(GLFWwindow* window);
	void Shutdown();

	void BeginFrame();
	void EndFrame();

	VkDescriptorSetLayout CreateDescriptorSetLayout();
	VkDescriptorPool CreateDescriptorPool(uint32_t maxSets);
	VkDevice* GetDevice();
	VkPhysicalDevice* GetPhysicalDevice();
	VkCommandPool* GetCommandPool();
	VkQueue* GetGraphicsQueue();
	VkCommandBuffer* GetCurrentCommandBuffer();
	std::shared_ptr<Pipeline> GetPipeline();
	void CreateGraphicsPipeline(Mesh* mesh, Material* material);
	std::pair<VkBuffer, VkDeviceMemory> RequestMvpBuffer();

private:

	bool isShutDown = false;

	static const uint32_t kMvpBufferCount = 3;
	std::vector<VkBuffer> mvpBuffers;
	std::vector<VkDeviceMemory> mvpBufferMemory;
	uint32_t currentMvpBufferIndex = 0;

	bool shutdownInProgress;
	uint32_t currentCmdBufferIndex = 0;
	std::vector<size_t> currentFramePerImage;

	std::vector<VkImage> swapChainImages;
	std::vector<VkImageView> swapChainImageViews;
	VkExtent2D swapChainExtent;
	VkRenderPass renderPass;
	uint32_t imageIndex;
	std::shared_ptr<Pipeline> pipeline;

	VkFormat swapChainImageFormat;

	std::vector<VkCommandBuffer> commandBuffers;

	void CreateImageViews();
	void CleanupImageViews();
	void CreateRenderPass();
	void CleanupRenderPass();

	void CreateSurface();
	void DestroySurface();

	void CreateInstance();
	void CleanupInstance();
	void ChoosePhysicalDevice();
	void CreateDevice();
	void CleanupDevice();
	void CreateSwapchain();
	void CleanupSwapchain();
	void CreateCommandPool();
	void CleanupCommandPool();
	void CreateFramebuffers();
	void CleanupFramebuffers();

	void CreateCommandBuffers();
	void CleanupCommandBuffers();

	void Present();

	

	

	GLFWwindow* window;
	VkInstance instance = VK_NULL_HANDLE;
	VkPhysicalDevice physicalDevice = VK_NULL_HANDLE;
	VkDevice device = VK_NULL_HANDLE;

	VkSurfaceKHR surface;
	VkSwapchainKHR swapchain;
	VkCommandPool commandPool;
	VkCommandBuffer currentCommandBuffer;

	std::vector<VkFramebuffer> framebuffers;

	// Additional Vulkan objects needed for rendering…

	const uint32_t kMaxFramesInFlight = 2;
	std::vector<VkSemaphore> imageAvailableSemaphores;
	std::vector<VkSemaphore> renderFinishedSemaphores;
	std::vector<VkFence> inFlightFences;
	size_t currentFrame;

	VkQueue graphicsQueue;
	VkQueue presentQueue;

	void CreateSyncObjects();
	void CleanupSyncObjects();

	SwapChainSupportDetails querySwapChainSupport(VkPhysicalDevice device, VkSurfaceKHR surface);
	VkSurfaceFormatKHR chooseSwapSurfaceFormat(const std::vector<VkSurfaceFormatKHR>& availableFormats);
	VkPresentModeKHR chooseSwapPresentMode(const std::vector<VkPresentModeKHR>& availablePresentModes);
	VkExtent2D chooseSwapExtent(const VkSurfaceCapabilitiesKHR& capabilities, GLFWwindow* window);

	std::vector<const char*> deviceExtensions = {
		VK_KHR_SWAPCHAIN_EXTENSION_NAME
	};

	std::vector<const char*> CheckPhysicalDeviceExtensionSupport(VkPhysicalDevice physicalDevice);
	QueueFamilyIndices GetQueueFamilyIndices(VkPhysicalDevice physicalDevice);
};

Scene.h:

#pragma once

#include <vector>
#include "GameObject.h"
#include "Camera.h"
#include "Renderer.h"

class Scene
{
public:
	Scene();
	~Scene();

	void Initialize();
	void Update(float deltaTime);
	void Render(Renderer& renderer);
	void Shutdown();

	void AddGameObject(GameObject* gameObject);
	Camera& GetCamera();
	float temp;

private:
	std::vector<GameObject*> gameObjects;
	Camera camera;
};

Shader.h:

#pragma once

#include <vulkan/vulkan.h>
#include <string>

class Shader
{
public:
	Shader();
	~Shader();

	void LoadFromFile(const std::string& filename, VkDevice device, VkShaderStageFlagBits stage);
	VkPipelineShaderStageCreateInfo GetPipelineShaderStageCreateInfo() const;
	static void Cleanup(Shader* shader);

private:
	VkDevice device;
	VkShaderModule shaderModule;
	VkShaderStageFlagBits stage;
};

Simplex.h:

#pragma once
#ifndef SIMPLEX_H
#define SIMPLEX_H

#include <iostream>





class SimplexNoise {
private:
	int testvar;

	int grad3[12][3]{ { 1, 1, 0 }, { -1, 1, 0 }, { 1, -1, 0 },
			{ -1, -1, 0 }, { 1, 0, 1 }, { -1, 0, 1 }, { 1, 0, -1 },
			{ -1, 0, -1 }, { 0, 1, 1 }, { 0, -1, 1 }, { 0, 1, -1 },
			{ 0, -1, -1 } };
	int grad4[32][4] = { { 0, 1, 1, 1 }, { 0, 1, 1, -1 },
				{ 0, 1, -1, 1 }, { 0, 1, -1, -1 }, { 0, -1, 1, 1 },
				{ 0, -1, 1, -1 }, { 0, -1, -1, 1 }, { 0, -1, -1, -1 },
				{ 1, 0, 1, 1 }, { 1, 0, 1, -1 }, { 1, 0, -1, 1 }, { 1, 0, -1, -1 },
				{ -1, 0, 1, 1 }, { -1, 0, 1, -1 }, { -1, 0, -1, 1 },
				{ -1, 0, -1, -1 }, { 1, 1, 0, 1 }, { 1, 1, 0, -1 },
				{ 1, -1, 0, 1 }, { 1, -1, 0, -1 }, { -1, 1, 0, 1 },
				{ -1, 1, 0, -1 }, { -1, -1, 0, 1 }, { -1, -1, 0, -1 },
				{ 1, 1, 1, 0 }, { 1, 1, -1, 0 }, { 1, -1, 1, 0 }, { 1, -1, -1, 0 },
				{ -1, 1, 1, 0 }, { -1, 1, -1, 0 }, { -1, -1, 1, 0 },
				{ -1, -1, -1, 0 } };
	int p_supply[256] = { 151, 160, 137, 91, 90, 15, 131, 13, 201, 95, 96,
			53, 194, 233, 7, 225, 140, 36, 103, 30, 69, 142, 8, 99, 37, 240,
			21, 10, 23, 190, 6, 148, 247, 120, 234, 75, 0, 26, 197, 62, 94,
			252, 219, 203, 117, 35, 11, 32, 57, 177, 33, 88, 237, 149, 56, 87,
			174, 20, 125, 136, 171, 168, 68, 175, 74, 165, 71, 134, 139, 48,
			27, 166, 77, 146, 158, 231, 83, 111, 229, 122, 60, 211, 133, 230,
			220, 105, 92, 41, 55, 46, 245, 40, 244, 102, 143, 54, 65, 25, 63,
			161, 1, 216, 80, 73, 209, 76, 132, 187, 208, 89, 18, 169, 200, 196,
			135, 130, 116, 188, 159, 86, 164, 100, 109, 198, 173, 186, 3, 64,
			52, 217, 226, 250, 124, 123, 5, 202, 38, 147, 118, 126, 255, 82,
			85, 212, 207, 206, 59, 227, 47, 16, 58, 17, 182, 189, 28, 42, 223,
			183, 170, 213, 119, 248, 152, 2, 44, 154, 163, 70, 221, 153, 101,
			155, 167, 43, 172, 9, 129, 22, 39, 253, 19, 98, 108, 110, 79, 113,
			224, 232, 178, 185, 112, 104, 218, 246, 97, 228, 251, 34, 242, 193,
			238, 210, 144, 12, 191, 179, 162, 241, 81, 51, 145, 235, 249, 14,
			239, 107, 49, 192, 214, 31, 181, 199, 106, 157, 184, 84, 204, 176,
			115, 121, 50, 45, 127, 4, 150, 254, 138, 236, 205, 93, 222, 114,
			67, 29, 24, 72, 243, 141, 128, 195, 78, 66, 215, 61, 156, 180 };
	// To remove the need for index wrapping, double the permutation table
	// length
	int perm[512] = {};
	/*static {
		for (int i = 0; i < 512; i++)
			perm[i] = p[i & 255];
	}*/
	// A lookup table to traverse the simplex around a given point in 4D.
	// Details can be found where this table is used, in the 4D noise method.
	int simplex[64][4] = { { 0, 1, 2, 3 }, { 0, 1, 3, 2 },
			{ 0, 0, 0, 0 }, { 0, 2, 3, 1 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
			{ 0, 0, 0, 0 }, { 1, 2, 3, 0 }, { 0, 2, 1, 3 }, { 0, 0, 0, 0 },
			{ 0, 3, 1, 2 }, { 0, 3, 2, 1 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
			{ 0, 0, 0, 0 }, { 1, 3, 2, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
			{ 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
			{ 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 1, 2, 0, 3 }, { 0, 0, 0, 0 },
			{ 1, 3, 0, 2 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
			{ 2, 3, 0, 1 }, { 2, 3, 1, 0 }, { 1, 0, 2, 3 }, { 1, 0, 3, 2 },
			{ 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 2, 0, 3, 1 },
			{ 0, 0, 0, 0 }, { 2, 1, 3, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
			{ 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
			{ 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 2, 0, 1, 3 }, { 0, 0, 0, 0 },
			{ 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 3, 0, 1, 2 }, { 3, 0, 2, 1 },
			{ 0, 0, 0, 0 }, { 3, 1, 2, 0 }, { 2, 1, 0, 3 }, { 0, 0, 0, 0 },
			{ 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 3, 1, 0, 2 }, { 0, 0, 0, 0 },
			{ 3, 2, 0, 1 }, { 3, 2, 1, 0 } };


	int p[256] = {};

	int RANDOMSEED = 0;
	int NUMBEROFSWAPS = 400;


public:
	SimplexNoise(int inseed);
	double noise(double xin, double yin);
	double noise(double xin, double yin, double zin);
	double noise(double xin, double yin, double zin, double win);

};



#endif

Terrain.h:

#pragma once

#include "Simplex.h"
#include "Mesh.h"
#include "Material.h"
#include "GameObject.h"

class Terrain {
public:
    Terrain(int seed, int worldSize, float scale, VkDevice* device, VkPhysicalDevice* physicalDevice, VkCommandPool* commandPool, VkQueue* graphicsQueue);
    ~Terrain();

    void GenerateTerrain(VkDescriptorSetLayout descriptorSetLayout, VkDescriptorSetLayout samplerDescriptorSetLayout, VkDescriptorPool descriptorPool);
    GameObject* GetTerrainObject();

private:
    void GenerateHeightMap();
    void ConvertHeightMapToMeshData();

    int seed;
    int worldSize;
    float scale;

    VkDevice* device;
    VkPhysicalDevice* physicalDevice;
    VkCommandPool* commandPool;
    VkQueue* graphicsQueue;

    SimplexNoise noise;
    std::vector<std::vector<float>> heightMap;
    std::vector<Vertex> vertices;
    std::vector<uint32_t> indices;

    Mesh* terrainMesh;
    Material* terrainMaterial;
    GameObject* terrainObject;
};

Texture.h:

#pragma once

#include <vulkan/vulkan.h>
#include "stb_image.h" // Include the stb_image header
#include "BufferUtils.h"
#include <string>

class Texture
{
public:
    Texture();
    ~Texture();

    void LoadFromFile(const std::string& filename, VkDevice device, VkPhysicalDevice physicalDevice, VkCommandPool commandPool, VkQueue graphicsQueue);
    VkImageView GetImageView() const;
    VkSampler GetSampler() const;
    void Cleanup();

private:
    VkDevice device;
    VkImage image;
    VkDeviceMemory imageMemory;
    VkImageView imageView;
    VkSampler sampler;
    VkPhysicalDevice physicalDevice;
    VkCommandPool commandPool;
    VkQueue graphicsQueue;
    bool initialized = false;

    void CreateImage(uint32_t width, uint32_t height, uint32_t mipLevels, VkSampleCountFlagBits numSamples,
        VkFormat format, VkImageTiling tiling, VkImageUsageFlags usage, VkMemoryPropertyFlags properties);
    void TransitionImageLayout(VkImageLayout oldLayout, VkImageLayout newLayout,
        uint32_t mipLevels, VkSampleCountFlagBits numSamples);
    void CopyBufferToImage(VkBuffer buffer, uint32_t width, uint32_t height);
    void CreateImageView(VkFormat format, VkImageAspectFlags aspectFlags, uint32_t mipLevels);
    void CreateSampler(uint32_t mipLevels);
    void GenerateMipmaps(uint32_t width, uint32_t height, uint32_t mipLevels);
    VkCommandBuffer BeginSingleTimeCommands(VkCommandPool commandPool, VkDevice device);
    void EndSingleTimeCommands(VkCommandPool commandPool, VkQueue graphicsQueue, VkDevice device, VkCommandBuffer commandBuffer);
};

Window.h:

#pragma once

#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>

class Window
{
public:
	Window(int width = 800, int height = 600, const char* title = "Game Engine");
	~Window();

	void Initialize();
	void PollEvents();
	void Shutdown();

	bool ShouldClose() const;
	GLFWwindow* GetWindow() const;

	float GetDeltaTime();

private:
	static void FramebufferResizeCallback(GLFWwindow* window, int width, int height);
	static void keyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);

	int width;
	int height;
	const char* title;
	GLFWwindow* window;
	double lastFrameTime;
};

Engine.cpp:

#include "Engine.h"
#include "Terrain.h"
#include <iostream>

Engine::Engine()
{
	Initialize();
}

Engine::~Engine()
{
	Shutdown();
}

void Engine::Run()
{
	MainLoop();

}

void Engine::Initialize()
{
	// Initialize window, renderer, and scene
	window.Initialize();
	renderer.Initialize(window.GetWindow());
	scene.Initialize();

	VkDescriptorSetLayout descriptorSetLayout = renderer.CreateDescriptorSetLayout();
	//VkDescriptorPool descriptorPool = renderer.CreateDescriptorPool(1); // Assuming only one terrain object

	//VkDescriptorSetLayout samplerDescriptorSetLayout = renderer.CreateSamplerDescriptorSetLayout(); // Use this new method to create a separate descriptor layout.
	VkDescriptorPool descriptorPool = renderer.CreateDescriptorPool(1);

	// Create a simple square tile GameObject
	GameObject* squareTile = new GameObject();
	squareTile->Initialize();

	// Define the cube’s vertices and indices
	std::vector<Vertex> vertices = {
		{ {-0.5f, -0.5f, -0.5f}, {1.0f, 0.0f, 0.0f}, {0.0f, 0.0f} },  // bottom-left-back
		{ { 0.5f, -0.5f, -0.5f}, {0.0f, 1.0f, 0.0f}, {1.0f, 0.0f} },  // bottom-right-back
		{ { 0.5f,  0.5f, -0.5f}, {0.0f, 0.0f, 1.0f}, {1.0f, 1.0f} },  // top-right-back
		{ {-0.5f,  0.5f, -0.5f}, {1.0f, 1.0f, 0.0f}, {0.0f, 1.0f} },  // top-left-back
		{ {-0.5f, -0.5f,  0.5f}, {0.0f, 1.0f, 1.0f}, {1.0f, 0.0f} },  // bottom-left-front
		{ { 0.5f, -0.5f,  0.5f}, {1.0f, 1.0f, 1.0f}, {0.0f, 0.0f} },  // bottom-right-front
		{ { 0.5f,  0.5f,  0.5f}, {1.0f, 0.0f, 1.0f}, {0.0f, 1.0f} },  // top-right-front
		{ {-0.5f,  0.5f,  0.5f}, {0.0f, 0.0f, 0.0f}, {1.0f, 1.0f} },  // top-left-front
	};

	std::vector<uint32_t> indices = {
		0, 1, 2, 2, 3, 0,  // back face
		0, 3, 7, 7, 4, 0,  // left face
		4, 7, 6, 6, 5, 4,  // front face
		1, 5, 6, 6, 2, 1,  // right face
		3, 2, 6, 6, 7, 3,  // top face
		0, 4, 5, 5, 1, 0   // bottom face
	};

	// Initialize mesh and material for the square tile
	squareTile->GetMesh()->Initialize(vertices, indices, *renderer.GetDevice(), *renderer.GetPhysicalDevice(), *renderer.GetCommandPool(), *renderer.GetGraphicsQueue());
	squareTile->GetMaterial()->Initialize("C:/shaders/vert_depth.spv", "C:/shaders/frag_depth.spv", "C:/textures/texture.jpg", *renderer.GetDevice(), descriptorSetLayout, descriptorPool, *renderer.GetPhysicalDevice(), *renderer.GetCommandPool(), *renderer.GetGraphicsQueue());
	squareTile->Initialize2(renderer);
	// Add the square tile GameObject to the scene
	scene.AddGameObject(squareTile);

	/*Terrain terrain(0,10,1,renderer.GetDevice(), renderer.GetPhysicalDevice(), renderer.GetCommandPool(), renderer.GetGraphicsQueue());
	terrain.GenerateTerrain(descriptorSetLayout, samplerDescriptorSetLayout, descriptorPool);*/

	//scene.AddGameObject(terrain.GetTerrainObject());
	float deltaTime = window.GetDeltaTime();

}

void Engine::MainLoop()
{
	while (!window.ShouldClose())
	{
		window.PollEvents();

		float deltaTime = window.GetDeltaTime();
		Update(deltaTime);
		Render();

		auto sleep_duration = std::chrono::milliseconds(1000 / MaxFPS);
		std::this_thread::sleep_for(sleep_duration);
	}
}

void Engine::Update(float deltaTime)
{
	scene.Update(deltaTime);
}

void Engine::Render()
{
	renderer.BeginFrame();
	scene.Render(renderer);
	renderer.EndFrame();
}

void Engine::Shutdown()
{
	vkDeviceWaitIdle(*renderer.GetDevice());
	// Clean up resources in reverse order
	scene.Shutdown();
	renderer.Shutdown();
	window.Shutdown();
}

Can you improve the code for the Engine class?