diff --git a/src/main.cpp b/src/main.cpp
index 64b2354..5cc2842 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,6 +2,8 @@
 #define TINYGLTF_IMPLEMENTATION
 #define STB_IMAGE_IMPLEMENTATION
 #define STB_IMAGE_WRITE_IMPLEMENTATION
+#define GLM_FORCE_RADIANS
+#define GLM_FORCE_DEPTH_ZERO_TO_ONE
 
 #include <GLFW/glfw3.h>
 
@@ -14,10 +16,6 @@
 #include <vector>
 #include <algorithm>
 #include <filesystem>
-#define TINYGLTF_IMPLEMENTATION
-#define STB_IMAGE_IMPLEMENTATION
-#define GLM_FORCE_RADIANS
-#define GLM_FORCE_DEPTH_ZERO_TO_ONE
 #include <glm/glm.hpp>
 #include <glm/gtc/matrix_transform.hpp>
 #include "tiny_gltf.h"
@@ -84,33 +82,6 @@ void loadModel() {
     }
 }
 
-void createVertexBuffer() {
-    VkBufferCreateInfo bufferInfo{};
-    bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
-    bufferInfo.size = sizeof(vertices[0]) * vertices.size();
-    bufferInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
-    bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
-
-    vkCreateBuffer(device, &bufferInfo, nullptr, &vertexBuffer);
-
-    VkMemoryRequirements memRequirements;
-    vkGetBufferMemoryRequirements(device, vertexBuffer, &memRequirements);
-
-    VkMemoryAllocateInfo allocInfo{};
-    allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
-    allocInfo.allocationSize = memRequirements.size;
-    allocInfo.memoryTypeIndex = findMemoryType(memRequirements.memoryTypeBits,
-        VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
-
-    vkAllocateMemory(device, &allocInfo, nullptr, &vertexBufferMemory);
-    vkBindBufferMemory(device, vertexBuffer, vertexBufferMemory, 0);
-
-    void* data;
-    vkMapMemory(device, vertexBufferMemory, 0, bufferInfo.size, 0, &data);
-    memcpy(data, vertices.data(), bufferInfo.size);
-    vkUnmapMemory(device, vertexBufferMemory);
-}
-
 VkResult CreateDebugUtilsMessengerEXT(VkInstance instance, const VkDebugUtilsMessengerCreateInfoEXT* pCreateInfo,
     const VkAllocationCallbacks* pAllocator,
     VkDebugUtilsMessengerEXT* pDebugMessenger) {
@@ -230,6 +201,13 @@ private:
     const std::vector<const char*> validationLayers = {
             "VK_LAYER_KHRONOS_validation"
     };
+    std::vector<Vertex> vertices;
+    VkBuffer vertexBuffer;
+    VkDeviceMemory vertexBufferMemory;
+    Model model;
+    VkPhysicalDevice physicalDevice;
+    VkDevice device;
+
 
 #ifdef NDEBUG
     const bool enableValidationLayers = false;
@@ -288,10 +266,10 @@ private:
         setupDebugMessenger();
         createSurface();
         pickPhysicalDevice();
+        createLogicalDevice();
         loadModel();
         createVertexBuffer();
         createIndexBuffer();
-        createLogicalDevice();
         createSwapChain();
         createImageViews();
         createRenderPass();
@@ -322,6 +300,51 @@ private:
         }
         return true;
     }
+    private:
+        void createVertexBuffer() {
+            VkBufferCreateInfo bufferInfo{};
+            bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
+            bufferInfo.size = sizeof(vertices[0]) * vertices.size();
+            bufferInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
+            bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
+
+            // Убрать this->, так как device уже член класса
+            if (vkCreateBuffer(device, &bufferInfo, nullptr, &vertexBuffer) != VK_SUCCESS) {
+                throw std::runtime_error("failed to create vertex buffer!");
+            }
+
+            VkMemoryRequirements memRequirements;
+            vkGetBufferMemoryRequirements(device, vertexBuffer, &memRequirements);
+
+            VkMemoryAllocateInfo allocInfo{};
+            allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
+            allocInfo.allocationSize = memRequirements.size;
+            allocInfo.memoryTypeIndex = findMemoryType(memRequirements.memoryTypeBits,
+                VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
+
+            if (vkAllocateMemory(device, &allocInfo, nullptr, &vertexBufferMemory) != VK_SUCCESS) {
+                throw std::runtime_error("failed to allocate vertex buffer memory!");
+            }
+
+            vkBindBufferMemory(device, vertexBuffer, vertexBufferMemory, 0);
+
+            void* data;
+            vkMapMemory(device, vertexBufferMemory, 0, bufferInfo.size, 0, &data);
+            memcpy(data, vertices.data(), bufferInfo.size);
+            vkUnmapMemory(device, vertexBufferMemory);
+        }
+        uint32_t findMemoryType(uint32_t typeFilter, VkMemoryPropertyFlags properties) {
+            VkPhysicalDeviceMemoryProperties memProperties;
+            vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memProperties);
+
+            for (uint32_t i = 0; i < memProperties.memoryTypeCount; i++) {
+                if ((typeFilter & (1 << i)) &&
+                    (memProperties.memoryTypes[i].propertyFlags & properties) == properties) {
+                    return i;
+                }
+            }
+            throw std::runtime_error("failed to find suitable memory type!");
+        }
 
     std::vector<const char*> getRequiredExtensions() const {
         uint32_t glfwExtensionCount = 0;
@@ -571,6 +594,38 @@ private:
         vkGetDeviceQueue(device, indices.presentFamily.value(), 0, &presentQueue);
     }
 
+    void createIndexBuffer() {
+        VkBufferCreateInfo bufferInfo{};
+        bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
+        bufferInfo.size = sizeof(indices[0]) * indices.size();
+        bufferInfo.usage = VK_BUFFER_USAGE_INDEX_BUFFER_BIT;
+        bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
+
+        if (vkCreateBuffer(device, &bufferInfo, nullptr, &indexBuffer) != VK_SUCCESS) {
+            throw std::runtime_error("failed to create index buffer!");
+        }
+
+        VkMemoryRequirements memRequirements;
+        vkGetBufferMemoryRequirements(device, indexBuffer, &memRequirements);
+
+        VkMemoryAllocateInfo allocInfo{};
+        allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
+        allocInfo.allocationSize = memRequirements.size;
+        allocInfo.memoryTypeIndex = findMemoryType(memRequirements.memoryTypeBits,
+            VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
+
+        if (vkAllocateMemory(device, &allocInfo, nullptr, &indexBufferMemory) != VK_SUCCESS) {
+            throw std::runtime_error("failed to allocate index buffer memory!");
+        }
+
+        vkBindBufferMemory(device, indexBuffer, indexBufferMemory, 0);
+
+        void* data;
+        vkMapMemory(device, indexBufferMemory, 0, bufferInfo.size, 0, &data);
+        memcpy(data, indices.data(), bufferInfo.size);
+        vkUnmapMemory(device, indexBufferMemory);
+    }
+
     void createSwapChain() {
         auto swapChinSupport = querySwapChainSupport(physicalDevice);
 
@@ -718,10 +773,12 @@ private:
         };
 
         // Vertex input configuration
+        VkVertexInputBindingDescription bindingDescription{};
         bindingDescription.binding = 0;
         bindingDescription.stride = sizeof(Vertex);
         bindingDescription.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
 
+        std::array<VkVertexInputAttributeDescription, 3> attributeDescriptions{};
         attributeDescriptions[0].binding = 0;
         attributeDescriptions[0].location = 0;
         attributeDescriptions[0].format = VK_FORMAT_R32G32B32_SFLOAT;