添加贴图

CMakeLists.txt

@@ -7,6 +7,8 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(BUILD_SHARED_LIBS OFF)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 
+
+
 if(MSVC)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4251")
     add_compile_options(/utf-8)
@@ -18,6 +20,9 @@ set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin-int)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 
 
+file(GLOB ASSETS Sandbox/assets/*)
+file(COPY ${ASSETS} DESTINATION ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/assets)
+
 
 add_subdirectory(Hazel)
 add_subdirectory(Sandbox)

Hazel/CMakeLists.txt

@@ -8,14 +8,21 @@ add_subdirectory(vendor/glm)
 
 file(GLOB_RECURSE SOURCES "src/*.cpp")
 
+include_directories(vendor/stb)
+file(GLOB STB vendor/stb/stb_image.h)
+
+
 include_directories(vendor/imgui)
 include_directories(vendor/imgui/backends)
-
 file(GLOB IMGUI vendor/imgui/**.cpp
                 vendor/imgui/backends/imgui_impl_opengl3.cpp
                 vendor/imgui/backends/imgui_impl_sdl3.cpp)
 
-add_library(Hazel SHARED ${SOURCES} ${IMGUI})
+add_library(Hazel SHARED
+        ${SOURCES}
+        ${IMGUI}
+        ${STB}
+)
 
 
 
@@ -41,7 +48,7 @@ target_link_libraries(${PROJECT_NAME} PUBLIC
         glm::glm
 )
 
-target_compile_definitions(${PROJECT_NAME} PRIVATE HZ_BUILD_DLL)# 编译DLL时定义
+target_compile_definitions(${PROJECT_NAME} PRIVATE HZ_BUILD_DLL STB_IMAGE_IMPLEMENTATION)# 编译DLL时定义
 
 if(WIN32)
     target_compile_definitions(${PROJECT_NAME} PUBLIC HZ_PLATFORM_WINDOWS IMGUI_API=__declspec\(dllexport\))# 编译DLL时定义

Hazel/src/Hazel.h

@@ -1,12 +1,29 @@
 #pragma once
 
+
+#define STB_IMAGE_IMPLEMENTATION
+
 // For use by Hazel Applications
-#include "Hazel/Core.h"
 #include "Hazel/Application.h"
+#include "Hazel/Core.h"
 #include "Hazel/Log.h"
 #include "Hazel/Window.h"
 #include "Hazel/ImGui/ImGuiLayer.h"
-#include "Hazel/Renderer/GraphicsContext.h"
+
+
+
+
+// ------------------------   Renderer   ----------------------------
+#include "Hazel/Renderer/Renderer.h"
+#include "Hazel/Renderer/RendererCommand.h"
+
+#include "Hazel/Renderer/Buffer.h"
+#include "Hazel/Renderer/Shader.h"
+#include "Hazel/Renderer/Texture.h"
+#include "Hazel/Renderer/VertexArray.h"
+
+#include "Hazel/Renderer/OrthographicCamera.h"
+
 
 
 // ------------------------   Entry Point   ------------------------

Hazel/src/Hazel/Application.cpp

@@ -1,16 +1,19 @@
 
 #include "Application.h"
 
-#include <imgui_impl_opengl3_loader.h>
 #include <SDL3/SDL.h>
-#include <SDL3/SDL_opengl_glext.h>
+
 
 #include "Log.h"
+#include "Renderer/Renderer.h"
+#include "Renderer/RendererCommand.h"
+
 
 namespace Hazel {
 
 	Application* Application::s_Instance = nullptr;
 
+
 	Application::Application()
 	{
 		if (s_Instance != nullptr)
@@ -22,40 +25,12 @@ namespace Hazel {
 		m_Window = std::unique_ptr<Window>(Window::Create());
 		m_Window->SetEventCallback(std::bind(&Application::OnEvent, this, std::placeholders::_1));
 
+		Renderer::Init();
+
 		m_imguiLayer = new ImGuiLayer();
 		PushOverlay(m_imguiLayer);
 
-
-		// Vertex Array
-		glGenVertexArrays(1, &m_VertexArray);
-		glBindVertexArray(m_VertexArray);
-
-		// Vertex Buffer
-		glGenBuffers(1, &m_VertexBuffer);
-		glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer);
-
-		float vertices[3 * 3] = {
-			-0.5f, -0.5f, 0.0f,
-			 0.5f, -0.5f, 0.0f,
-			 0.0f,  0.5f, 0.0f,
-		};
-
-		glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
-
-		glEnableVertexAttribArray(0);
-		glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
-
-		// Index Buffer
-		glGenBuffers(1, &m_IndexBuffer);
-		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_IndexBuffer);
-
-		uint32_t indices[3] = { 0, 1, 2 };
-
-		glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
-
-
-
-		// Shader
+		m_Window->SetVSync(true);
 
 	}
 
@@ -64,14 +39,14 @@ namespace Hazel {
 	void Application::Run() {
 		while (m_Running)
 		{
-			glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
-			glClear(GL_COLOR_BUFFER_BIT);
+			float currentTime = (float)SDL_GetTicks();
+			TimeStep timestep = currentTime - m_lastFrameTime;
+			m_lastFrameTime = currentTime;
+
 
-			glBindVertexArray(m_VertexArray);
-			glDrawElements(GL_TRIANGLES, 3, GL_UNSIGNED_INT, 0);
 			for (Layer* layer : m_layerStack)
 			{
-				layer->OnUpdate();
+				layer->OnUpdate(timestep);
 			}
 
 			m_imguiLayer->Begin();

Hazel/src/Hazel/Application.h

@@ -5,6 +5,7 @@
 #include "Core.h"
 #include "Layer.h"
 #include "LayerStack.h"
+#include "Core/TimeStep.h"
 #include "ImGui/ImGuiLayer.h"
 
 namespace Hazel {
@@ -30,7 +31,8 @@ namespace Hazel {
 
 		LayerStack m_layerStack;
 
-		unsigned m_VertexArray, m_VertexBuffer, m_IndexBuffer;
+		TimeStep m_TimeStep;
+		float m_lastFrameTime = 0.0f;
 
 	private:
 		static Application* s_Instance;

Hazel/src/Hazel/Core.h

@@ -10,5 +10,14 @@
 #else
 	#error Hazel only support Windows!
 #endif // HZ_PLATFORM_WINDOWS
+#include <memory>
 
+namespace Hazel
+{
+	template<typename T>
+	using Scope = std::unique_ptr<T>;
+
+	template<typename T>
+	using Ref = std::shared_ptr<T>;
+}
 

Hazel/src/Hazel/Core/TimeStep.cpp

@@ -0,0 +1,5 @@
+//
+// Created by sfd on 25-4-23.
+//
+
+#include "TimeStep.h"

Hazel/src/Hazel/Core/TimeStep.h

@@ -0,0 +1,27 @@
+//
+// Created by sfd on 25-4-23.
+//
+
+#ifndef TIMESTEP_H
+#define TIMESTEP_H
+
+
+namespace Hazel
+{
+    class TimeStep
+    {
+    public:
+        TimeStep(float time = 0.0f) : m_Time(time) {}
+
+
+        operator float() const { return m_Time / 1000.0f; }
+
+        float GetSeconds() const { return m_Time / 1000.0f; }
+        float GetMilliseconds() const { return m_Time; }
+    private:
+        float m_Time;   // ms
+    };
+}
+
+
+#endif //TIMESTEP_H

Hazel/src/Hazel/EntryPoint.h

@@ -5,7 +5,8 @@
 
 extern Hazel::Application* Hazel::CreateApplication();
 
-int main(int argc, char* argv[]) {
+
+int main(int, char**) {
 	Hazel::Log::init();
 
 	auto app = Hazel::CreateApplication();

Hazel/src/Hazel/Layer.h

@@ -10,6 +10,8 @@
 #include "Core.h"
 #include <SDL3/SDL.h>
 
+#include "Core/TimeStep.h"
+
 namespace Hazel {
 
     class HAZEL_API Layer
@@ -20,7 +22,7 @@ namespace Hazel {
 
         virtual void OnAttach() {}
         virtual void OnDetech() {}
-        virtual void OnUpdate() {}
+        virtual void OnUpdate(TimeStep& ts) {}
         virtual void OnImGuiRender() {}
         virtual void OnEvent(SDL_Event& e) {}
 

Hazel/src/Hazel/Renderer/Buffer.cpp

@@ -0,0 +1,51 @@
+//
+// Created by sfd on 25-4-21.
+//
+
+#include "Buffer.h"
+
+#include <Hazel/Log.h>
+
+#include "Renderer.h"
+#include "Platform/OpenGL/OpenGLBuffer.h"
+
+namespace Hazel
+{
+    // std::shared_ptr<VertexBuffer> VertexBuffer::Create(float* vertices, uint32_t size)
+    VertexBuffer* VertexBuffer::Create(float* vertices, uint32_t size)
+    {
+        switch (Renderer::GetAPI())
+        {
+            case RendererAPI::API::NONE:
+                HZ_CORE_ERROR("NONE is not Support!");
+                return nullptr;
+        case RendererAPI::API::OPENGL:
+                // return std::make_shared<VertexBuffer>(OpenGLVertexBuffer(vertices, size));
+                return new OpenGLVertexBuffer(vertices, size);
+                break;
+            default:
+                break;
+        }
+
+        HZ_CORE_ERROR("Unknown RendererAPI!");
+        return nullptr;
+    }
+
+    IndexBuffer* IndexBuffer::Create(uint32_t* indices, uint32_t count)
+    {
+        switch (Renderer::GetAPI())
+        {
+            case RendererAPI::API::NONE:
+                HZ_CORE_ERROR("NONE is not Support!");
+                return nullptr;
+            case RendererAPI::API::OPENGL:
+                return new OpenGLIndexBuffer(indices, count);
+                break;
+            default:
+                break;
+        }
+
+        HZ_CORE_ERROR("Unknown RendererAPI!");
+        return nullptr;
+    }
+}

Hazel/src/Hazel/Renderer/Buffer.h

@@ -0,0 +1,154 @@
+//
+// Created by sfd on 25-4-21.
+//
+
+#ifndef BUFFER_H
+#define BUFFER_H
+
+#include <cstdint>
+#include <string>
+#include <vector>
+#include <Hazel/Log.h>
+
+#include "Hazel/Core.h"
+
+namespace Hazel
+{
+    enum class ShaderDataType : uint8_t
+    {
+        None = 0,
+        Float, Float2, Float3, Float4, Mat3, Mat4, Int, Int2, Int3, Int4, Bool
+    };
+
+    static uint32_t ShaderDataTypeSize(ShaderDataType type)
+    {
+        switch (type)
+        {
+        case ShaderDataType::Float:     return 4;
+        case ShaderDataType::Float2:    return 4 * 2;
+        case ShaderDataType::Float3:    return 4 * 3;
+        case ShaderDataType::Float4:    return 4 * 4;
+        case ShaderDataType::Mat3:      return 4 * 3 * 3;
+        case ShaderDataType::Mat4:      return 4 * 4 * 4;
+        case ShaderDataType::Int:       return 4;
+        case ShaderDataType::Int2:      return 4 * 2;
+        case ShaderDataType::Int3:      return 4 * 3;
+        case ShaderDataType::Int4:      return 4 * 4;
+        case ShaderDataType::Bool:      return 4;
+        }
+
+        HZ_CORE_ERROR("Unknown ShaderDataType!");
+        return 0;
+    }
+
+    struct BufferElement
+    {
+        std::string name;
+        ShaderDataType Type;
+        uint32_t Size;
+        uint32_t Offset;
+        bool Normalized;
+
+        BufferElement() {}
+
+        BufferElement(ShaderDataType type, const std::string& name, bool normalized = false) : name(name), Type(type), Size(ShaderDataTypeSize(type)),Offset(0), Normalized(normalized)
+        {
+
+        }
+
+        uint32_t GetComponentCount() const
+        {
+            switch (Type)
+            {
+                case ShaderDataType::Float:     return 1;
+                case ShaderDataType::Float2:     return 2;
+                case ShaderDataType::Float3:    return 3;
+                case ShaderDataType::Float4:    return 4;
+                case ShaderDataType::Mat3:      return 3 * 3;
+                case ShaderDataType::Mat4:      return 4 * 4;
+                case ShaderDataType::Int:       return 1;
+                case ShaderDataType::Int2:      return 2;
+                case ShaderDataType::Int3:      return 3;
+                case ShaderDataType::Int4:      return 4;
+                case ShaderDataType::Bool:      return 1;
+            }
+
+        HZ_CORE_ERROR("Unknown ShaderDataType!");
+        return 0;
+        }
+    };
+
+
+    // BufferLayout
+    class HAZEL_API BufferLayout
+    {
+    public:
+        BufferLayout() {}
+        BufferLayout(const std::initializer_list<BufferElement>& elements) : m_Elements(elements)
+        {
+            CalcOffsetAndStride();
+        }
+
+        inline const std::vector<BufferElement>& GetElements() const { return m_Elements; }
+        inline uint32_t GetStride() const { return m_Stride; }
+
+
+        std::vector<BufferElement>::iterator begin() { return m_Elements.begin(); }
+        std::vector<BufferElement>::iterator end() { return m_Elements.end(); }
+
+        std::vector<BufferElement>::const_iterator begin() const { return m_Elements.begin(); }
+        std::vector<BufferElement>::const_iterator end() const { return m_Elements.end(); }
+    private:
+        void CalcOffsetAndStride()
+        {
+            uint32_t offset = 0;
+            m_Stride = 0;
+            for (auto& element : m_Elements)
+            {
+                element.Offset = offset;
+                offset += element.Size;
+                m_Stride += element.Size;
+            }
+        }
+
+    private:
+        std::vector<BufferElement> m_Elements;
+        uint32_t m_Stride;
+    };
+
+
+
+    // VertexBuffer
+    class HAZEL_API VertexBuffer
+    {
+    public:
+        virtual ~VertexBuffer() {}
+
+        virtual void Bind() const = 0;
+        virtual void Unbind() const = 0;
+        virtual void SetLayout(const BufferLayout& layout) = 0;
+        virtual const BufferLayout& GetLayout() const = 0;
+
+        // static std::shared_ptr<VertexBuffer> Create(float* vertices, uint32_t size);
+        static VertexBuffer* Create(float* vertices, uint32_t size);
+    };
+
+
+    // IndexBuffer
+    class HAZEL_API IndexBuffer
+    {
+    public:
+        virtual ~IndexBuffer() {}
+
+        virtual void Bind() const = 0;
+        virtual void Unbind() const = 0;
+
+        virtual uint32_t GetCount() const = 0;
+
+        static IndexBuffer* Create(uint32_t* indices, uint32_t count);
+    };
+
+}
+
+
+#endif //BUFFER_H

Hazel/src/Hazel/Renderer/OrthographicCamera.cpp

@@ -0,0 +1,26 @@
+//
+// Created by sfd on 25-4-22.
+//
+
+#include "OrthographicCamera.h"
+
+#include <glm/ext/matrix_clip_space.hpp>
+#include <glm/ext/matrix_transform.hpp>
+
+namespace  Hazel
+{
+    OrthographicCamera::OrthographicCamera(float left, float right, float bottom, float top)
+        : m_ProjectionMatrix(glm::ortho(left, right, bottom, top, -1.0f, 1.0f)), m_ViewMatrix(glm::mat4(1.0f))
+    {
+        m_ViewProjectionMatrix = m_ProjectionMatrix * m_ViewMatrix;
+
+    }
+
+    void OrthographicCamera::RecalculateViewMatrix()
+    {
+        glm::mat4 transform = glm::translate(glm::mat4(1.0f), m_Position) * glm::rotate(glm::mat4(1.0f), glm::radians(m_Rotation), glm::vec3(0.0f, 0.0f, 1.0f));
+
+        m_ViewMatrix = glm::inverse(transform);
+        m_ViewProjectionMatrix = m_ProjectionMatrix * m_ViewMatrix;
+    }
+}

Hazel/src/Hazel/Renderer/OrthographicCamera.h

@@ -0,0 +1,46 @@
+//
+// Created by sfd on 25-4-22.
+//
+
+#ifndef ORTHOGRAPHICCAMERA_H
+#define ORTHOGRAPHICCAMERA_H
+
+#include <glm/glm.hpp>
+#include "Hazel/Core.h"
+
+namespace Hazel
+{
+    class HAZEL_API OrthographicCamera
+    {
+    public:
+        OrthographicCamera(float left, float right, float bottom, float top);
+
+
+        const glm::vec3& GetPosition() const { return m_Position; }
+
+        void  SetPosition(const glm::vec3& prosition) { m_Position = prosition; RecalculateViewMatrix(); }
+        float GetRotation() const { return m_Rotation; }
+        void  SetRotation(float rotation) { m_Rotation = rotation; RecalculateViewMatrix(); }
+
+        const glm::mat4& GetProjectionMatrix() const { return m_ProjectionMatrix; }
+        const glm::mat4& GetViewMatrix() const { return m_ViewMatrix; }
+        const glm::mat4& GetViewProjectionMatrix() const { return m_ViewProjectionMatrix; }
+
+    private:
+        void RecalculateViewMatrix();
+
+    private:
+        glm::mat4 m_ProjectionMatrix;
+        glm::mat4 m_ViewMatrix;
+        glm::mat4 m_ViewProjectionMatrix;
+
+
+        glm::vec3 m_Position = {0.0f, 0.0f, 0.0f};
+        float m_Rotation = 0.0f;
+
+    };
+
+}
+
+
+#endif //ORTHOGRAPHICCAMERA_H

Hazel/src/Hazel/Renderer/Renderer.cpp

@@ -0,0 +1,40 @@
+//
+// Created by sfd on 25-4-21.
+//
+
+#include "Renderer.h"
+
+#include <SDL3/SDL_opengl.h>
+
+#include "Platform/OpenGL/OpenGLShader.h"
+#include "RendererCommand.h"
+
+namespace Hazel
+{
+
+    Renderer::SceneData* Renderer::m_SceneData = new Renderer::SceneData;
+
+    void Renderer::Init()
+    {
+        RendererCommand::Init();
+    }
+
+    void Renderer::BeginScene(OrthographicCamera& camera)
+    {
+        m_SceneData->ViewProjectionMatrix = camera.GetViewProjectionMatrix();
+    }
+
+    void Renderer::EndScene()
+    {
+    }
+
+    void Renderer::Submit(const std::shared_ptr<Shader>& shader, const std::shared_ptr<VertexArray>& vertexArray, const glm::mat4& transform)
+    {
+        shader->Bind();
+        std::dynamic_pointer_cast<OpenGLShader>(shader)->UploadUniformMat4("u_ViewProjection", m_SceneData->ViewProjectionMatrix);
+        std::dynamic_pointer_cast<OpenGLShader>(shader)->UploadUniformMat4("u_Transform", transform);
+
+        vertexArray->Bind();
+        RendererCommand::DrawIndexed(vertexArray);
+    }
+}

Hazel/src/Hazel/Renderer/Renderer.h

@@ -0,0 +1,42 @@
+//
+// Created by sfd on 25-4-21.
+//
+
+#ifndef RENDERER_H
+#define RENDERER_H
+
+#include <Hazel/Renderer/OrthographicCamera.h>
+
+#include "RendererAPI.h"
+#include "Shader.h"
+#include "Hazel/Core.h"
+
+namespace Hazel
+{
+
+
+    class HAZEL_API Renderer
+    {
+    public:
+        static void Init();
+
+        static void BeginScene(OrthographicCamera& camera);
+        static void EndScene();
+
+        static void Submit(const std::shared_ptr<Shader>& shader, const std::shared_ptr<VertexArray>& vertexArray, const glm::mat4& transform = glm::mat4(1.0f));
+
+
+        inline static RendererAPI::API GetAPI() { return RendererAPI::GetAPI(); }
+
+    private:
+        struct SceneData
+        {
+            glm::mat4 ViewProjectionMatrix;
+        };
+
+        static SceneData* m_SceneData;
+    };
+}
+
+
+#endif //RENDERER_H

Hazel/src/Hazel/Renderer/RendererAPI.cpp

@@ -0,0 +1,12 @@
+//
+// Created by sfd on 25-4-22.
+//
+
+#include "RendererAPI.h"
+
+
+namespace Hazel
+{
+    RendererAPI::API RendererAPI::s_API = API::OPENGL;
+
+}

Hazel/src/Hazel/Renderer/RendererAPI.h

@@ -0,0 +1,39 @@
+//
+// Created by sfd on 25-4-22.
+//
+
+#ifndef RENDERERAPI_H
+#define RENDERERAPI_H
+
+#include <memory>
+
+#include "VertexArray.h"
+#include "glm/vec4.hpp"
+
+
+namespace Hazel
+{
+    class HAZEL_API RendererAPI
+    {
+    public:
+        enum class API
+        {
+            NONE   = 0,
+            OPENGL = 1
+        };
+
+    public:
+        virtual void Init() = 0;
+        virtual void SetClearColor(const glm::vec4& color) = 0;
+        virtual void Clear() = 0;
+
+        virtual void DrawIndexed(const  std::shared_ptr<Hazel::VertexArray>& vertexArray) = 0;
+
+        inline static API GetAPI() {return s_API; }
+
+        private:
+        static API s_API;
+    };
+}
+
+#endif //RENDERERAPI_H

Hazel/src/Hazel/Renderer/RendererCommand.cpp

@@ -0,0 +1,12 @@
+//
+// Created by sfd on 25-4-22.
+//
+
+#include "RendererCommand.h"
+#include "Platform/OpenGL/OpenGLRendererAPI.h"
+
+namespace Hazel
+{
+    RendererAPI* RendererCommand::s_RendererAPI = new OpenGLRendererAPI;
+
+}

Hazel/src/Hazel/Renderer/RendererCommand.h

@@ -0,0 +1,38 @@
+//
+// Created by sfd on 25-4-22.
+//
+
+#ifndef RENDERERCOMMAND_H
+#define RENDERERCOMMAND_H
+
+#include "RendererAPI.h"
+
+namespace Hazel {
+    class HAZEL_API RendererCommand {
+    public:
+
+        inline static void Init()
+        {
+            s_RendererAPI->Init();
+        }
+
+        inline static void SetClearColor(const glm::vec4& color)
+        {
+            s_RendererAPI->SetClearColor(color);
+        }
+        inline static void Clear()
+        {
+            s_RendererAPI->Clear();
+        }
+
+        inline static void DrawIndexed(const std::shared_ptr<VertexArray>& vertexArray) {
+          s_RendererAPI->DrawIndexed(vertexArray);
+          }
+
+    private:
+          static RendererAPI* s_RendererAPI;
+    };
+
+}
+
+#endif //RENDERERCOMMAND_H

Hazel/src/Hazel/Renderer/Shader.cpp

@@ -0,0 +1,24 @@
+//
+// Created by sfd on 25-4-21.
+//
+
+#include "Shader.h"
+#include "Platform/OpenGL/OpenGLShader.h"
+#include "Renderer.h"
+
+
+namespace Hazel
+{
+     Shader* Shader::Create(const std::string& vertexSrc, const std::string& fragmentSrc)
+     {
+          switch (Renderer::GetAPI())
+          {
+          case RendererAPI::API::NONE: return nullptr;
+          case RendererAPI::API::OPENGL: return new OpenGLShader(vertexSrc, fragmentSrc);
+          }
+
+          HZ_CORE_ERROR("Unknown RendererAPI");
+          return nullptr;
+     }
+
+}

Hazel/src/Hazel/Renderer/Shader.h

@@ -0,0 +1,28 @@
+//
+// Created by sfd on 25-4-21.
+//
+
+#ifndef SHADER_H
+#define SHADER_H
+#include <string>
+#include <Hazel/Core.h>
+
+
+namespace Hazel
+{
+    class HAZEL_API Shader
+    {
+    public:
+        virtual ~Shader() = default;
+
+        virtual void Bind() const = 0;
+        virtual void Unbind() const = 0;
+
+        static Shader* Create(const std::string& vertexSrc, const std::string& fragmentSrc);
+    private:
+        uint32_t m_RendererID;
+    };
+}
+
+
+#endif //SHADER_H

Hazel/src/Hazel/Renderer/Texture.cpp

@@ -0,0 +1,30 @@
+//
+// Created by sfd on 25-4-25.
+//
+
+#include "Hazel/Renderer/Texture.h"
+#include "Platform/OpenGL/OpenGLTexture.h"
+#include "Renderer.h"
+
+namespace Hazel
+{
+
+        Ref<Texture2D> Texture2D::Create(const std::string& path)
+        {
+        switch (Renderer::GetAPI())
+        {
+            case RendererAPI::API::NONE:
+                HZ_CORE_ERROR("NONE is not Support!");
+                return nullptr;
+        case RendererAPI::API::OPENGL:
+                // return std::make_shared<VertexBuffer>(OpenGLVertexBuffer(vertices, size));
+                return std::make_shared<OpenGLTexture2D>(path);
+                break;
+            default:
+                break;
+        }
+
+        HZ_CORE_ERROR("Unknown RendererAPI!");
+        return nullptr;
+        }
+}

Hazel/src/Hazel/Renderer/Texture.h

@@ -0,0 +1,41 @@
+//
+// Created by sfd on 25-4-25.
+//
+
+#ifndef TEXTURE_H
+#define TEXTURE_H
+#include <string>
+
+#include <Hazel\Core.h>
+
+
+namespace Hazel
+{
+    class HAZEL_API Texture
+    {
+    public:
+        virtual ~Texture() = default;
+        virtual const uint32_t GetWidth() const = 0;
+        virtual const uint32_t GetHeight() const = 0;
+
+        virtual void Bind(uint32_t slot = 0) const = 0;
+
+    private:
+
+    };
+
+
+    class HAZEL_API Texture2D : public Texture
+    {
+        public:
+        virtual ~Texture2D() = default;
+
+        static Ref<Texture2D> Create(const std::string& path);
+
+
+    };
+
+}
+
+
+#endif //TEXTURE_H

Hazel/src/Hazel/Renderer/VertexArray.cpp

@@ -0,0 +1,34 @@
+//
+// Created by sfd on 25-4-21.
+//
+
+#include "VertexArray.h"
+
+#include <Platform/OpenGL/OpenGLVertexArray.h>
+
+#include "Renderer.h"
+
+namespace Hazel
+{
+    VertexArray::~VertexArray()
+    {
+    }
+
+    VertexArray* VertexArray::Create()
+    {
+        switch (Renderer::GetAPI())
+        {
+            case RendererAPI::API::NONE:
+                HZ_CORE_ERROR("NONE is not Support!");
+                return nullptr;
+            case RendererAPI::API::OPENGL:
+                return new OpenGLVertexArray();
+                break;
+            default:
+                break;
+        }
+
+        HZ_CORE_ERROR("Unknown RendererAPI!");
+        return nullptr;
+    }
+}

Hazel/src/Hazel/Renderer/VertexArray.h

@@ -0,0 +1,35 @@
+//
+// Created by sfd on 25-4-21.
+//
+
+#ifndef VERTEXARRAY_H
+#define VERTEXARRAY_H
+
+#include <memory>
+
+#include "Buffer.h"
+
+
+
+namespace Hazel
+{
+    class HAZEL_API VertexArray
+    {
+    public:
+        virtual ~VertexArray();
+
+        virtual void Bind() const = 0;
+        virtual void Unbind() const = 0;
+
+        virtual void AddVertexBuffer(const std::shared_ptr<VertexBuffer>& vertex_buffer) = 0;
+        virtual void SetIndexBuffer(const std::shared_ptr<IndexBuffer>& index_buffer) = 0;
+
+        virtual const std::vector<std::shared_ptr<VertexBuffer>>& GetVertexBuffer() const = 0;
+        virtual const std::shared_ptr<IndexBuffer>& GetIndexBuffer() const = 0;
+
+        static VertexArray* Create();
+    };
+}
+
+
+#endif //VERTEXARRAY_H

Hazel/src/Platform/OpenGL/OpenGLBuffer.cpp

@@ -0,0 +1,63 @@
+//
+// Created by sfd on 25-4-21.
+//
+
+#include "OpenGLBuffer.h"
+
+#include <glad/glad.h>
+
+namespace Hazel
+{
+
+    ////////////////////////////////////////////////////////////////////
+    //////////////////////    VertexBuffer    //////////////////////////
+    ////////////////////////////////////////////////////////////////////
+    OpenGLVertexBuffer::OpenGLVertexBuffer(float* vertices, uint32_t size)
+    {
+        glCreateBuffers(1, &m_RendererID);
+        glBindBuffer(GL_ARRAY_BUFFER, m_RendererID);
+        glBufferData(GL_ARRAY_BUFFER, size, vertices, GL_STATIC_DRAW);
+    }
+
+    OpenGLVertexBuffer::~OpenGLVertexBuffer()
+    {
+        glDeleteBuffers(1, &m_RendererID);
+    }
+
+    void OpenGLVertexBuffer::Bind() const
+    {
+        glBindBuffer(GL_ARRAY_BUFFER, m_RendererID);
+    }
+
+    void OpenGLVertexBuffer::Unbind() const
+    {
+        glBindBuffer(GL_ARRAY_BUFFER, 0);
+    }
+
+
+    ////////////////////////////////////////////////////////////////////
+    //////////////////////    IndexBuffer    ///////////////////////////
+    ////////////////////////////////////////////////////////////////////
+    OpenGLIndexBuffer::OpenGLIndexBuffer(uint32_t* indices, uint32_t count) : m_Count(count)
+    {
+        glCreateBuffers(1, &m_RendererID);
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_RendererID);
+        glBufferData(GL_ELEMENT_ARRAY_BUFFER, count * sizeof(uint32_t), indices, GL_STATIC_DRAW);
+    }
+
+    OpenGLIndexBuffer::~OpenGLIndexBuffer()
+    {
+        glDeleteBuffers(1, &m_RendererID);
+    }
+
+    void OpenGLIndexBuffer::Bind() const
+    {
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_RendererID);
+    }
+
+    void OpenGLIndexBuffer::Unbind() const
+    {
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+    }
+
+}

Hazel/src/Platform/OpenGL/OpenGLBuffer.h

@@ -0,0 +1,42 @@
+//
+// Created by sfd on 25-4-21.
+//
+
+#ifndef OPENGLBUFFER_H
+#define OPENGLBUFFER_H
+#include <Hazel/Renderer/Buffer.h>
+
+
+namespace Hazel
+{
+    class OpenGLVertexBuffer : public VertexBuffer
+    {
+    public:
+        OpenGLVertexBuffer(float* vertices, uint32_t size);
+        virtual                     ~OpenGLVertexBuffer();
+        virtual void                Bind() const override;
+        virtual void                Unbind() const override;
+        virtual void                SetLayout(const BufferLayout& layout) override {m_Layout = layout;}
+        virtual const BufferLayout& GetLayout() const override {return m_Layout;}
+    private:
+        uint32_t m_RendererID;
+        BufferLayout m_Layout;
+    };
+
+    class OpenGLIndexBuffer : public IndexBuffer
+    {
+    public:
+        OpenGLIndexBuffer(uint32_t* indices, uint32_t count);
+        virtual          ~OpenGLIndexBuffer();
+        virtual void     Bind() const override;
+        virtual void     Unbind() const override;
+        virtual uint32_t GetCount() const override {return m_Count;}
+    private:
+        uint32_t m_RendererID;
+        uint32_t m_Count;
+    };
+
+}
+
+
+#endif //OPENGLBUFFER_H

Hazel/src/Platform/OpenGL/OpenGLRendererAPI.cpp

@@ -0,0 +1,32 @@
+//
+// Created by sfd on 25-4-22.
+//
+
+#include "OpenGLRendererAPI.h"
+
+#include <SDL3/SDL_opengl.h>
+
+namespace Hazel
+{
+    void OpenGLRendererAPI::Init()
+    {
+        glEnable(GL_BLEND);
+
+        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    }
+
+    void OpenGLRendererAPI::SetClearColor(const glm::vec4& color)
+    {
+        glClearColor(color.x, color.y, color.z, color.w);
+    }
+
+    void OpenGLRendererAPI::Clear()
+    {
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    }
+
+    void OpenGLRendererAPI::DrawIndexed(const std::shared_ptr<Hazel::VertexArray>& vertexArray)
+    {
+        glDrawElements(GL_TRIANGLES, vertexArray->GetIndexBuffer()->GetCount(), GL_UNSIGNED_INT, 0);
+    }
+}

Hazel/src/Platform/OpenGL/OpenGLRendererAPI.h

@@ -0,0 +1,23 @@
+//
+// Created by sfd on 25-4-22.
+//
+
+#ifndef OPENGLRENDERERAPI_H
+#define OPENGLRENDERERAPI_H
+#include <Hazel/Renderer/RendererAPI.h>
+
+
+namespace Hazel
+{
+    class OpenGLRendererAPI : public RendererAPI
+    {
+    public:
+        virtual void Init() override;
+        virtual void SetClearColor(const glm::vec4& color) override;
+        virtual void Clear() override;
+        virtual void DrawIndexed(const  std::shared_ptr<Hazel::VertexArray>& vertexArray) override;
+    };
+}
+
+
+#endif //OPENGLRENDERERAPI_H

Hazel/src/Platform/OpenGL/OpenGLShader.cpp

@@ -0,0 +1,122 @@
+//
+// Created by sfd on 25-4-24.
+//
+
+#include "OpenGLShader.h"
+#include <vector>
+#include <glad/glad.h>
+#include <Hazel/Log.h>
+
+#include "glm/gtc/type_ptr.hpp"
+
+namespace Hazel
+{
+    OpenGLShader::OpenGLShader(const std::string& vertexSrc, const std::string& fragmentSrc)
+    {
+        GLuint vertexShader = glCreateShader(GL_VERTEX_SHADER);
+
+        const char* vertexShaderSrc = vertexSrc.c_str();
+        glShaderSource(vertexShader, 1, &vertexShaderSrc, 0);
+
+        glCompileShader(vertexShader);
+
+        GLint compileSuccess = 0;
+        glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &compileSuccess);
+        if (compileSuccess == GL_FALSE)
+        {
+            int length = 0;
+            glGetShaderiv(vertexShader, GL_INFO_LOG_LENGTH, &length);
+
+            std::vector<GLchar> infoLog(length);
+            glGetShaderInfoLog(vertexShader, length, &length, &infoLog[0]);
+
+            glDeleteShader(vertexShader);
+            HZ_CORE_ERROR("Vertex shader compilation failed!");
+            HZ_CORE_ERROR("{0}", infoLog.data());
+            return;
+        }
+
+
+        GLuint      fragmentShader    = glCreateShader(GL_FRAGMENT_SHADER);
+        const char* fragmentShaderSrc = fragmentSrc.c_str();
+        glShaderSource(fragmentShader, 1, &fragmentShaderSrc, 0);
+        glCompileShader(fragmentShader);
+        glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &compileSuccess);
+        if (compileSuccess == GL_FALSE)
+        {
+            int length = 0;
+            glGetShaderiv(fragmentShader, GL_INFO_LOG_LENGTH, &length);
+            std::vector<GLchar> infoLog(length);
+            glGetShaderInfoLog(fragmentShader, length, &length, &infoLog[0]);
+            glDeleteShader(fragmentShader);
+
+            HZ_CORE_ERROR("[{0}:{1}]: Fragment shader compilation failed!", __FILE__, __LINE__);
+            HZ_CORE_ERROR("{0}", infoLog.data());
+
+            return;
+        }
+
+        m_RendererID = glCreateProgram();
+        glAttachShader(m_RendererID, vertexShader);
+        glAttachShader(m_RendererID, fragmentShader);
+        glLinkProgram(m_RendererID);
+        glGetProgramiv(m_RendererID, GL_LINK_STATUS, &compileSuccess);
+        if (compileSuccess == GL_FALSE)
+        {
+            int length = 0;
+            glGetProgramiv(m_RendererID, GL_INFO_LOG_LENGTH, &length);
+            std::vector<GLchar> infoLog(length);
+            glGetProgramInfoLog(m_RendererID, length, &length, &infoLog[0]);
+            glDeleteShader(vertexShader);
+            glDeleteShader(fragmentShader);
+            glDeleteProgram(m_RendererID);
+
+            HZ_CORE_ERROR("shaderProgram link failed!");
+            HZ_CORE_ERROR("{0}", infoLog.data());
+            return;
+        }
+
+        glDeleteShader(vertexShader);
+        glDeleteShader(fragmentShader);
+    }
+
+
+    OpenGLShader::~OpenGLShader()
+    {
+        glDeleteProgram(m_RendererID);
+    }
+
+    void OpenGLShader::Bind() const
+    {
+        glUseProgram(m_RendererID);
+    }
+
+    void OpenGLShader::Unbind() const
+    {
+        glUseProgram(0);
+    }
+
+    void OpenGLShader::UploadUniformFloat3(const std::string& name, const glm::vec3& value) const
+    {
+        GLint location = glGetUniformLocation(m_RendererID, name.c_str());
+        glUniform4fv(location, 1, glm::value_ptr(value));
+    }
+
+    void OpenGLShader::UploadUniformFloat4(const std::string& name, const glm::vec4& value) const
+    {
+        GLint location = glGetUniformLocation(m_RendererID, name.c_str());
+        glUniform4fv(location, 1, glm::value_ptr(value));
+    }
+
+    void OpenGLShader::UploadUniformMat4(const std::string& name, const glm::mat4& matrix) const
+    {
+        GLint location = glGetUniformLocation(m_RendererID, name.c_str());
+        glUniformMatrix4fv(location, 1, GL_FALSE, glm::value_ptr(matrix));
+    }
+
+    void OpenGLShader::UploadUniformInt(const char* str, const int value) const
+    {
+        const GLint location = glGetUniformLocation(m_RendererID, str);
+        glUniform1i(location, value);
+    }
+}

Hazel/src/Platform/OpenGL/OpenGLShader.h

@@ -0,0 +1,36 @@
+//
+// Created by sfd on 25-4-24.
+//
+
+#ifndef OPENGLSHADER_H
+#define OPENGLSHADER_H
+#include <Hazel/Renderer/Shader.h>
+
+#include "glm/fwd.hpp"
+#include "glm/vec4.hpp"
+
+
+namespace Hazel
+{
+    class HAZEL_API OpenGLShader : public Shader
+    {
+    public:
+        OpenGLShader(const std::string& vertexSrc, const std::string& fragmentSrc);
+        virtual ~OpenGLShader() override;
+
+        void Bind() const override;
+        void Unbind() const override;
+
+        void UploadUniformInt(const char* str, int value) const;
+
+        void UploadUniformFloat3(const std::string& name, const glm::vec3& value) const;
+        void UploadUniformFloat4(const std::string& name, const glm::vec4& value) const;
+        void UploadUniformMat4(const std::string& name, const glm::mat4& matrix) const;
+
+    private:
+        uint32_t m_RendererID;
+    };
+}
+
+
+#endif //OPENGLSHADER_H

Hazel/src/Platform/OpenGL/OpenGLTexture.cpp

@@ -0,0 +1,62 @@
+//
+// Created by sfd on 25-4-25.
+//
+
+#include "OpenGLTexture.h"
+
+#include <glad/glad.h>
+#include <Hazel/Log.h>
+
+#include "stb_image.h"
+
+namespace Hazel
+{
+    OpenGLTexture2D::OpenGLTexture2D(const std::string& path) : m_Path(path)
+    {
+        int width, height, channels;
+        stbi_set_flip_vertically_on_load(1);
+
+        stbi_uc* data = stbi_load(path.c_str(), &width, &height, &channels, 0);
+        if (!data)
+        {
+            HZ_CORE_ERROR("Failed to load texture {0}", path);
+        }
+        m_Width = width;
+        m_Height = height;
+
+        GLenum internalFormat = 0, dataFormat = 0;
+        if (channels == 4) {
+            internalFormat = GL_RGBA8;
+            dataFormat = GL_RGBA;
+        } else if (channels == 3) {
+            internalFormat = GL_RGB8;
+            dataFormat = GL_RGB;
+        }
+
+        HZ_CORE_TRACE("Texture Info: {0}", path);
+        HZ_CORE_TRACE("  Width: {0}, Height: {1}, Channel: {2}", m_Width, m_Height, channels);
+
+
+        glCreateTextures(GL_TEXTURE_2D, 1, &m_RendererID);
+        glTextureStorage2D(m_RendererID, 1, internalFormat, m_Width, m_Height);
+
+        glTextureParameteri(m_RendererID, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTextureParameteri(m_RendererID, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+
+        glTextureSubImage2D(m_RendererID, 0, 0, 0, m_Width, m_Height, dataFormat, GL_UNSIGNED_BYTE, data);
+
+
+        stbi_image_free(data);
+    }
+
+    OpenGLTexture2D::~OpenGLTexture2D()
+    {
+        glDeleteTextures(1, &m_RendererID);
+    }
+
+    void OpenGLTexture2D::Bind(uint32_t slot) const
+    {
+        glBindTextureUnit(slot, m_RendererID);
+    }
+}

Hazel/src/Platform/OpenGL/OpenGLTexture.h

@@ -0,0 +1,36 @@
+//
+// Created by sfd on 25-4-25.
+//
+
+#ifndef OPENGLTEXTURE_H
+#define OPENGLTEXTURE_H
+#include <Hazel/Renderer/Texture.h>
+
+
+
+
+namespace Hazel
+{
+    class OpenGLTexture2D : public Hazel::Texture2D
+    {
+    public:
+        OpenGLTexture2D(const std::string& path);
+        virtual ~OpenGLTexture2D();
+
+        virtual const uint32_t GetWidth() const override {return m_Width; }
+        virtual const uint32_t GetHeight() const override { return m_Height; }
+
+        virtual void Bind(uint32_t slot) const override;
+
+        uint32_t GetRendererID() const { return m_RendererID; }
+
+    private:
+        std::string m_Path;
+        uint32_t m_Width, m_Height;
+        uint32_t m_RendererID;
+
+    };
+}
+
+
+#endif //OPENGLTEXTURE_H

Hazel/src/Platform/OpenGL/OpenGLVertexArray.cpp

@@ -0,0 +1,87 @@
+//
+// Created by sfd on 25-4-22.
+//
+
+#include "OpenGLVertexArray.h"
+
+#include <glad/glad.h>
+
+namespace Hazel
+{
+	static GLenum ShaderDataTypeToOpenGLBaseType(ShaderDataType type)
+	{
+		switch (type)
+		{
+			case ShaderDataType::Float: return GL_FLOAT;
+			case ShaderDataType::Float2: return GL_FLOAT;
+			case ShaderDataType::Float3: return GL_FLOAT;
+			case ShaderDataType::Float4: return GL_FLOAT;
+			case ShaderDataType::Mat3: return GL_FLOAT;
+			case ShaderDataType::Mat4: return GL_FLOAT;
+			case ShaderDataType::Int: return GL_INT;
+			case ShaderDataType::Int2: return GL_INT;
+			case ShaderDataType::Int3: return GL_INT;
+			case ShaderDataType::Int4: return GL_INT;
+			case ShaderDataType::Bool: return GL_BOOL;
+		}
+
+		HZ_CORE_ERROR("Unknown ShaderDataType!");
+		return 0;
+	}
+
+    OpenGLVertexArray::OpenGLVertexArray()
+    {
+        glCreateVertexArrays(1, &m_RendererID);
+    }
+
+    OpenGLVertexArray::~OpenGLVertexArray()
+    {
+        glDeleteVertexArrays(1, &m_RendererID);
+    }
+
+    void OpenGLVertexArray::Bind() const
+    {
+        glBindVertexArray(m_RendererID);
+    }
+
+    void OpenGLVertexArray::Unbind() const
+    {
+        glBindVertexArray(0);
+    }
+
+    void OpenGLVertexArray::AddVertexBuffer(const std::shared_ptr<VertexBuffer>& vertexBuffer)
+    {
+        glBindVertexArray(m_RendererID);
+        vertexBuffer->Bind();
+
+
+        if (auto size = vertexBuffer->GetLayout().GetElements().size() )
+		{
+			HZ_CORE_INFO("Added Vertex Buffer {0}", size);
+		}else
+		{
+			HZ_CORE_ERROR("Vertex Buffer has no layout!");
+		}
+
+
+		uint32_t index = 0;
+		for (auto& element : vertexBuffer->GetLayout())
+		{
+			glEnableVertexAttribArray(index);
+			glVertexAttribPointer(index, element.GetComponentCount(), ShaderDataTypeToOpenGLBaseType(element.Type),
+			                      element.Normalized ? GL_TRUE : GL_FALSE, vertexBuffer->GetLayout().GetStride(),
+			                      reinterpret_cast<void*>(element.Offset));
+			index ++;
+		}
+
+		m_VertexBuffers.push_back(vertexBuffer);
+    }
+
+    void OpenGLVertexArray::SetIndexBuffer(const std::shared_ptr<IndexBuffer>& indexBuffer)
+    {
+		glBindVertexArray(m_RendererID);
+		indexBuffer->Bind();
+		m_IndexBuffers = indexBuffer;
+    }
+
+}

Hazel/src/Platform/OpenGL/OpenGLVertexArray.h

@@ -0,0 +1,34 @@
+//
+// Created by sfd on 25-4-22.
+//
+
+#ifndef OPENGLVERTEXARRAY_H
+#define OPENGLVERTEXARRAY_H
+#include <Hazel/Renderer/VertexArray.h>
+
+
+namespace Hazel
+{
+    class OpenGLVertexArray : public VertexArray
+    {
+    public:
+        OpenGLVertexArray();
+        virtual ~OpenGLVertexArray();
+        virtual void Bind() const override;
+        virtual void Unbind() const override;
+
+        virtual void AddVertexBuffer(const std::shared_ptr<VertexBuffer>& vertexBuffer) override;
+        virtual void SetIndexBuffer(const std::shared_ptr<IndexBuffer>& indexBuffer) override;
+
+        virtual const std::vector<std::shared_ptr<VertexBuffer>>& GetVertexBuffer() const override { return m_VertexBuffers; }
+        virtual const std::shared_ptr<IndexBuffer>& GetIndexBuffer() const override { return m_IndexBuffers; }
+    private:
+        uint32_t m_RendererID;
+
+        std::vector<std::shared_ptr<VertexBuffer>> m_VertexBuffers;
+        std::shared_ptr<IndexBuffer> m_IndexBuffers;
+    };
+}
+
+
+#endif //OPENGLVERTEXARRAY_H

Hazel/src/Platform/Windows/WindowsWindow.cpp

@@ -69,6 +69,7 @@ namespace Hazel
         {
             HZ_CORE_ERROR("Could not initialize GLAD context!");
         }
+        HZ_CORE_INFO("Init GLAD OK!");
 
 
         SetVSync(true);

Sandbox/src/SandboxApp.cpp

@@ -1,39 +1,298 @@
 #include <Hazel.h>
 
 #include "imgui.h"
-#include "imgui_impl_sdl2.h"
-#include "imgui_impl_opengl3.h"
+#define GLM_ENABLE_EXPERIMENTAL
+
+
+#include <glad/glad.h>
+#include <Platform/OpenGL/OpenGLShader.h>
+#include <Platform/OpenGL/OpenGLTexture.h>
+
+#include "glm/gtc/type_ptr.hpp"
+#include "glm/gtx/transform.hpp"
 
 
 class ExampleLayer : public Hazel::Layer
 {
 public:
-	ExampleLayer() : Layer("ExampleLayer")
+	// ExampleLayer() : Layer("ExampleLayer"), m_Camera(-1.0f, 1.0f, -1.0f, 1.0f), m_CameraPosition(0.0f)
+
+	ExampleLayer() : Layer("ExampleLayer"), m_Camera(-1.6f, 1.6f, -0.9f, 0.9f), m_CameraPosition(0.0f), m_SquarePosition(glm::vec3(0.0f))
 	{
+		// ------------------------------------------------------------test------------------------------------------------------------
+		// Vertex Array
+		m_VertexArray.reset(Hazel::VertexArray::Create());
+
+		// Vertex Buffer
+		float vertices[3 * 7] = {
+			-0.5f, -0.5f, 0.0f, 0.8f, 0.2f, 0.8f, 1.0f,
+			0.5f, -0.5f, 0.0f, 0.2f, 0.3f, 0.8f, 1.0f,
+			0.0f, 0.5f, 0.0f, 0.8f, 0.8f, 0.2f, 1.0f
+		};
+		std::shared_ptr<Hazel::VertexBuffer> m_VertexBuffer;
+		m_VertexBuffer.reset(Hazel::VertexBuffer::Create(vertices, sizeof(vertices)));
+		Hazel::BufferLayout layout = {
+			{Hazel::ShaderDataType::Float3, "a_Postion"},
+			{Hazel::ShaderDataType::Float4, "a_Color"},
+		};
+		m_VertexBuffer->SetLayout(layout);
+		m_VertexArray->AddVertexBuffer(m_VertexBuffer);
+
+
+		uint32_t                            indices[6] = {0, 1, 2};
+		std::shared_ptr<Hazel::IndexBuffer> m_IndexBuffer;
+		m_IndexBuffer.reset(Hazel::IndexBuffer::Create(indices, sizeof(indices) / sizeof(indices[0])));
+		m_VertexArray->SetIndexBuffer(m_IndexBuffer);
+
+		// Shader
+		std::string vertexSrc   = R"(
+			#version 460 core
+
+			layout(location = 0) in vec3 a_Position;
+			layout(location = 1) in vec3 a_Color;
+
+			uniform mat4 u_ViewProjection;
+			uniform mat4 u_Transform;
+
+			out vec3 v_Position;
+			out vec3 v_Color;
+
+			void main() {
+				v_Position = a_Position;
+				v_Color = a_Color;
+				gl_Position = u_ViewProjection * u_Transform * vec4(a_Position, 1.0f);
+			}
+
+		)";
+		std::string fragmentSrc = R"(
+			#version 460 core
+
+			layout(location = 0) out vec4 color;
+
+			in vec3 v_Position;
+			in vec3 v_Color;
+
+			void main() {
+				color = vec4(v_Color, 1.0f);
+			}
+		)";
+		m_Shader.reset(Hazel::Shader::Create(vertexSrc, fragmentSrc));
+
+
+		m_SquareVA.reset(Hazel::VertexArray::Create());
+
+		float squareVertices[5 * 4] = {
+			-0.5f, -0.5f, 0.0f, 0.0f, 0.0f,
+			0.5f, -0.5f, 0.0f,1.0f, 0.0f,
+			0.5f, 0.5f, 0.0f,1.0f, 1.0f,
+			-0.5f, 0.5f, 0.0f,0.0f, 1.0f
+		};
+		std::shared_ptr<Hazel::VertexBuffer> squareVB; //= VertexBuffer::Create(squareVertices, sizeof(squareVertices));
+		squareVB.reset(Hazel::VertexBuffer::Create(squareVertices, sizeof(squareVertices)));
+		squareVB->SetLayout(
+			{
+				{Hazel::ShaderDataType::Float3, "a_Postion"},
+				{Hazel::ShaderDataType::Float2, "a_TexCoord"}
+			});
+		m_SquareVA->AddVertexBuffer(squareVB);
+
+
+		uint32_t                            squareIndice[6] = {0, 1, 2, 2, 3, 0};
+		std::shared_ptr<Hazel::IndexBuffer> squareIB;
+		// = std::make_shared<IndexBuffer>(IndexBuffer::Create(squareIndice, sizeof(squareIndice) / sizeof(uint32_t)));
+		squareIB.reset(Hazel::IndexBuffer::Create(squareIndice, sizeof(squareIndice) / sizeof(uint32_t)));
+		m_SquareVA->SetIndexBuffer(squareIB);
+
+		std::string bluevertexSrc      = R"(
+			#version 460 core
+
+			layout(location = 0) in vec3 a_Position;
+			layout(location = 1) in vec2 a_TexCoord;
+
+			uniform mat4 u_ViewProjection;
+			uniform mat4 u_Transform;
+
+			out vec2 v_TexCoord;
+
+			void main() {
+				v_TexCoord = a_TexCoord;
+				gl_Position = u_ViewProjection * u_Transform * vec4(a_Position, 1.0f);
+			}
+		)";
+		std::string bluefragmentSrc = R"(
+			#version 460 core
+
+			layout(location = 0) out vec4 color;
+
+			in vec3 v_Position;
+			uniform vec4 u_Color;
+
+			void main() {
+				color = u_Color;
+			}
+		)";
+		m_colorShader.reset(Hazel::Shader::Create(bluevertexSrc, bluefragmentSrc));
+
+
+		std::string textureVertexSrc   = R"(
+			#version 460 core
+
+			layout(location = 0) in vec3 a_Position;
+			layout(location = 1) in vec2 a_TexCoord;
+
+			uniform mat4 u_ViewProjection;
+			uniform mat4 u_Transform;
+
+			out vec2 v_TexCoord;
+
+			void main() {
+				v_TexCoord = a_TexCoord;
+				gl_Position = u_ViewProjection * u_Transform * vec4(a_Position, 1.0f);
+			}
+		)";
+		std::string textureFragmentSrc = R"(
+			#version 460 core
+
+			layout(location = 0) out vec4 color;
+
+			in vec2 v_TexCoord;
+
+			uniform sampler2D u_Texture;
+
+			void main() {
+				vec4 tmpColor = texture(u_Texture, v_TexCoord);
+				if(gl_FragCoord.x < 635){
+					color = tmpColor;
+				}
+				else{
+					if(tmpColor.a < 0.1){
+						discard;
+					}else{
+						color = vec4(v_TexCoord, 0.0f, 1.0f);
+					}
+				}
+			}
+		)";
+
+		m_TextureShader.reset(Hazel::Shader::Create(textureVertexSrc, textureFragmentSrc));
+
+
+		// Texture
+		m_Texture = Hazel::Texture2D::Create("assets/textures/Checkerboard.png");
+		m_logoTexture = Hazel::Texture2D::Create("assets/textures/iceLogo.png");
+
+		std::dynamic_pointer_cast<Hazel::OpenGLShader>(m_TextureShader)->Bind();
+		std::dynamic_pointer_cast<Hazel::OpenGLShader>(m_TextureShader)->UploadUniformInt("u_Texture", 0);
 	}
 
-	void OnUpdate() override
+	void OnUpdate(Hazel::TimeStep& ts) override
 	{
+		// key event
+		{
+			float time = ts;
+
+			const bool* state = SDL_GetKeyboardState(NULL);
+			if (state[SDL_SCANCODE_A])
+			{
+				m_CameraPosition.x -= m_CameraSpeed * time;
+			}
+			else if (state[SDL_SCANCODE_D])
+			{
+				m_CameraPosition.x += m_CameraSpeed * time;
+			}
+			if (state[SDL_SCANCODE_W])
+			{
+				m_CameraPosition.y += m_CameraSpeed * time;
+			}
+			else if (state[SDL_SCANCODE_S])
+			{
+				m_CameraPosition.y -= m_CameraSpeed * time;
+			}
+			if (state[SDL_SCANCODE_Q])
+			{
+				m_CameraRotation += m_CameraRotationSpeed * time;
+			}
+			else if (state[SDL_SCANCODE_E])
+			{
+				m_CameraRotation -= m_CameraRotationSpeed * time;
+			}
+
+			if (state[SDL_SCANCODE_I])
+			{
+				m_SquarePosition.y += m_CameraSpeed * time;
+			}
+			else if (state[SDL_SCANCODE_K])
+			{
+				m_SquarePosition.y -= m_CameraSpeed * time;
+			}
+			if (state[SDL_SCANCODE_J])
+			{
+				m_SquarePosition.x -= m_CameraSpeed * time;
+			}
+			else if (state[SDL_SCANCODE_L])
+			{
+				m_SquarePosition.x += m_CameraSpeed * time;
+			}
+		}
+
+
+
+		Hazel::RendererCommand::SetClearColor({0.1f, 0.1f, 0.1f, 1.0f});
+		Hazel::RendererCommand::Clear();
+
+		m_Camera.SetPosition(m_CameraPosition);
+		m_Camera.SetRotation(m_CameraRotation);
+
+
+
+		Hazel::Renderer::BeginScene(m_Camera);
+
+		auto transform = glm::translate(glm::mat4(1.0f), m_SquarePosition);
+
+		m_Texture->Bind();
+		Hazel::Renderer::Submit(m_TextureShader, m_SquareVA, transform);
+
+		m_logoTexture->Bind();
+		Hazel::Renderer::Submit(m_TextureShader, m_SquareVA);
+
+		Hazel::Renderer::EndScene();
 	}
 
 	void OnEvent(SDL_Event& event) override
 	{
-		if (event.type == SDL_EVENT_KEY_DOWN)
-		{
-			HZ_CORE_TRACE("{}", event.key.key);
-		}
 	}
 
 	void OnImGuiRender() override
 	{
 		ImGui::Begin("Hazel Layer");
-		ImGui::Text("Hello World");
+		ImGui::Text("Rotation: %f", m_CameraRotation);
+		ImGui::Text("Position: ( %.2f, %.2f, %.2f)", m_CameraPosition.x, m_CameraPosition.y, m_CameraPosition.z);
+		ImGui::Text("frame: %.3f", ImGui::GetIO().Framerate);
+		ImGui::ColorEdit3("Square Color", glm::value_ptr(m_SquareColor));
 		ImGui::End();
-
-
-
 	}
 
+private:
+	Hazel::Ref<Hazel::Shader>      m_Shader;
+	Hazel::Ref<Hazel::VertexArray> m_VertexArray;
+
+	Hazel::Ref<Hazel::VertexArray> m_SquareVA;
+	Hazel::Ref<Hazel::Shader>      m_colorShader, m_TextureShader;
+
+	Hazel::Ref<Hazel::Texture2D> m_Texture, m_logoTexture;
+
+	Hazel::OrthographicCamera m_Camera;
+
+	glm::vec3 m_CameraPosition;
+	float m_CameraSpeed = 1.0f;
+
+	float m_CameraRotation = 0.0f;
+	float m_CameraRotationSpeed = 30.f;
+
+	glm::vec3 m_SquarePosition;
+	float m_SquareMoveSpeed = 1.0f;
+
+	glm::vec3 m_SquareColor = {0.2f, 0.3f, 0.8f};
 };
 
 
@@ -44,15 +303,16 @@ public:
 	{
 		PushLayer(new ExampleLayer());
 	}
+
 	~Sandbox();
 
 private:
-
 };
 
 
 Sandbox::~Sandbox() = default;
 
-Hazel::Application* Hazel::CreateApplication() {
+Hazel::Application* Hazel::CreateApplication()
+{
 	return new Sandbox();
 }