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Graphics_04.cpp
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Graphics_04.cpp
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//#include<iostream>
//
////GLEW
//#define GLEW_STATIC
//#include<GL/glew.h>
//
////GLFW
//#include<GLFW/glfw3.h>
//
//#include "Shader.h"
//#include "Camera.h"
//#include "Light.h"
//
//#include <glm/glm.hpp>
//#include <glm/gtc/matrix_transform.hpp>
//#include <glm/gtc/type_ptr.hpp>
//#include <glm/gtx/rotate_vector.hpp>
//
//const GLint WIDTH = 800, HEIGHT = 600;
//void KeyCallback(GLFWwindow* window, int key, int scnacode, int action, int mode);
//void ScrollCallback(GLFWwindow* window, double xOffset, double yOffset);
//void MouseCallback(GLFWwindow* window, double xPos, double yPos);
//void DoMovement();
//bool keys[1024];
//Camera camera(glm::vec3(0.0f, 0.0f, 2.0f));
//GLfloat deltaTime = 0.0f;
//GLfloat lastTime = 0.0f;
//GLfloat lastX = WIDTH / 2.0f;
//GLfloat lastY = HEIGHT / 2.0f;
//GLfloat fov = 45.0f;
//bool firstMouse = true;
//
//GLfloat objectX = 0.0f;
//GLfloat objectY = 0.0f;
//GLfloat objectZ = -2.0f;
//const GLfloat OBJECT_SPEED = 6.0f;
//
//int main() {
// glfwInit();
// glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
// glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
// glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
// glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
// glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
//
// GLFWwindow* window = glfwCreateWindow(WIDTH, HEIGHT, "LEZ", nullptr, nullptr);
// // next two lines are for mac retina display
// int screenWidth, screenHeight;
// glfwGetFramebufferSize(window, &screenWidth, &screenHeight);
//
//
// if (nullptr == window) {
// std::cout << "Failed to create GLFW window" << std::endl;
// glfwTerminate();
// return -1;
// }
// glfwMakeContextCurrent(window);
// glfwSetKeyCallback(window, KeyCallback);
// glfwSetCursorPosCallback(window, MouseCallback);
// glfwSetScrollCallback(window, ScrollCallback);
// glewExperimental = GL_TRUE;
//
// if (GLEW_OK != glewInit()) {
// std::cout << "Failed to initialize GLEW" << std::endl;
// return -1;
// }
//
// glEnable(GL_DEPTH_TEST);
// glDepthFunc(GL_LESS);
// glEnable(GL_BLEND);
// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//
// Shader ourShader = Shader("res/shaders/core4.vs", "res/shaders/core4.fs");
// Shader lightShader = Shader("res/shaders/light.vs", "res/shaders/light.fs");
//
// Light lightModel = Light();
//
// GLfloat vertices[] = {
// //position //color //normal
// -0.5f,-0.5f,-0.5f, 1.0f,0.0f,0.0f, 0.0f,0.0f,-1.0f,
// 0.5f,-0.5f,-0.5f, 1.0f,0.0f,0.0f, 0.0f,0.0f,-1.0f,
// 0.5f,0.5f,-0.5f, 1.0f,0.0f,0.0f, 0.0f,0.0f,-1.0f,
// 0.5f,0.5f,-0.5f, 1.0f,0.0f,0.0f, 0.0f,0.0f,-1.0f,
// -0.5f,0.5f,-0.5f, 1.0f,0.0f,0.0f, 0.0f,0.0f,-1.0f,
// -0.5f,-0.5f,-0.5f, 1.0f,0.0f,0.0f, 0.0f,0.0f,-1.0f,
//
// -0.5f,-0.5f,0.5f, 0.0f,1.0f,0.0f, 0.0f,0.0f,1.0f,
// 0.5f,-0.5f,0.5f, 0.0f,1.0f,0.0f, 0.0f,0.0f,1.0f,
// 0.5f,0.5f,0.5f, 0.0f,1.0f,0.0f, 0.0f,0.0f,1.0f,
// 0.5f,0.5f,0.5f, 0.0f,1.0f,0.0f, 0.0f,0.0f,1.0f,
// -0.5f,0.5f,0.5f, 0.0f,1.0f,0.0f, 0.0f,0.0f,1.0f,
// -0.5f,-0.5f,0.5f, 0.0f,1.0f,0.0f, 0.0f,0.0f,1.0f,
//
// -0.5f,0.5f,0.5f, 0.0f,0.0f,1.0f, -1.0f,0.0f,0.0f,
// -0.5f,0.5f,-0.5f, 0.0f,0.0f,1.0f, -1.0f,0.0f,0.0f,
// -0.5f,-0.5f,-0.5f, 0.0f,0.0f,1.0f, -1.0f,0.0f,0.0f,
// -0.5f,-0.5f,-0.5f, 0.0f,0.0f,1.0f, -1.0f,0.0f,0.0f,
// -0.5f,-0.5f,0.5f, 0.0f,0.0f,1.0f, -1.0f,0.0f,0.0f,
// -0.5f,0.5f,0.5f, 0.0f,0.0f,1.0f, -1.0f,0.0f,0.0f,
//
// 0.5f,0.5f,0.5f, 1.0f,1.0f,0.0f, 1.0f,0.0f,0.0f,
// 0.5f,0.5f,-0.5f, 1.0f,1.0f,0.0f, 1.0f,0.0f,0.0f,
// 0.5f,-0.5f,-0.5f, 1.0f,1.0f,0.0f, 1.0f,0.0f,0.0f,
// 0.5f,-0.5f,-0.5f, 1.0f,1.0f,0.0f, 1.0f,0.0f,0.0f,
// 0.5f,-0.5f,0.5f, 1.0f,1.0f,0.0f, 1.0f,0.0f,0.0f,
// 0.5f,0.5f,0.5f, 1.0f,1.0f,0.0f, 1.0f,0.0f,0.0f,
//
// -0.5f,-0.5f,-0.5f, 1.0f,0.0f,1.0f, 0.0f,-1.0f,0.0f,
// 0.5f,-0.5f,-0.5f, 1.0f,0.0f,1.0f, 0.0f,-1.0f,0.0f,
// 0.5f,-0.5f,0.5f, 1.0f,0.0f,1.0f, 0.0f,-1.0f,0.0f,
// 0.5f,-0.5f,0.5f, 1.0f,0.0f,1.0f, 0.0f,-1.0f,0.0f,
// -0.5f,-0.5f,0.5f, 1.0f,0.0f,1.0f, 0.0f,-1.0f,0.0f,
// -0.5f,-0.5f,-0.5f, 1.0f,0.0f,1.0f, 0.0f,-1.0f,0.0f,
//
// -0.5f,0.5f,-0.5f, 0.0f,1.0f,1.0f, 0.0f,1.0f,0.0f,
// 0.5f,0.5f,-0.5f, 0.0f,1.0f,1.0f, 0.0f,1.0f,0.0f,
// 0.5f,0.5f,0.5f, 0.0f,1.0f,1.0f, 0.0f,1.0f,0.0f,
// 0.5f,0.5f,0.5f, 0.0f,1.0f,1.0f, 0.0f,1.0f,0.0f,
// -0.5f,0.5f,0.5f, 0.0f,1.0f,1.0f, 0.0f,1.0f,0.0f,
// -0.5f,0.5f,-0.5f, 0.0f,1.0f,1.0f, 0.0f,1.0f,0.0f
// };
//
// // the data should be transfered to the memory on Graphics Card
// GLuint VAO, VBO;
// glGenVertexArrays(1, &VAO);
// glGenBuffers(1, &VBO);
// // connect the VAO and VBO
// glBindVertexArray(VAO);
// glBindBuffer(GL_ARRAY_BUFFER, VBO);
// // transfer the data
// glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
// // set the attribute
// glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 9 * sizeof(GLfloat), (GLvoid*)0);
// glEnableVertexAttribArray(0);
// glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 9 * sizeof(GLfloat), (GLvoid*)(3 * sizeof(GLfloat)));
// glEnableVertexAttribArray(1);
// glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, 9 * sizeof(GLfloat), (GLvoid*)(6 * sizeof(GLfloat)));
// glEnableVertexAttribArray(2);
//
//
// glBindBuffer(GL_ARRAY_BUFFER, 0);
// glBindVertexArray(0);
//
// glm::vec3 lightPos = glm::vec3(0.0f, 1.5f, 0.0f);
//
// while (!glfwWindowShouldClose(window))
// {
// float time = glfwGetTime();
// GLfloat currentTime = glfwGetTime();
// deltaTime = currentTime - lastTime;
// lastTime = currentTime;
// glViewport(0, 0, screenWidth, screenHeight);
// glfwPollEvents();
// DoMovement();
// glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
// glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//
// lightPos = glm::rotate(lightPos, glm::radians(0.5f), glm::vec3(1.0f, 1.0f, 1.0f));
// glm::mat4 view = camera.GetViewMatrix();
// glm::mat4 projection = glm::perspective(glm::radians(fov), (float)screenWidth / (float)screenHeight,
// 0.1f, 100.0f);
// glm::mat4 transform = glm::mat4(1.0f);
// transform = glm::translate(transform, lightPos);
// transform = glm::scale(transform, glm::vec3(0.1f, 0.1f, 0.1f));
//
// lightShader.Use();
// glUniformMatrix4fv(glGetUniformLocation(lightShader.Program, "transform"), 1, GL_FALSE, glm::value_ptr(transform));
// glUniformMatrix4fv(glGetUniformLocation(lightShader.Program, "projection"), 1, GL_FALSE, glm::value_ptr(projection));
// glUniformMatrix4fv(glGetUniformLocation(lightShader.Program, "view"), 1, GL_FALSE, glm::value_ptr(view));
// lightModel.Draw(lightShader);
//
// ourShader.Use();
// transform = glm::mat4(1.0f);
// transform = glm::translate(transform, glm::vec3(objectX,objectY,objectZ));
// //transform = glm::translate(transform, glm::vec3(0.0f, 0.0f, -2.0f));
// //transform = glm::rotate(transform, glm::radians(20.0f) * static_cast<GLfloat>(glfwGetTime()), glm::vec3(1.0f, 1.0f, 1.0f));
// transform = glm::rotate(transform, glm::radians(20.0f), glm::vec3(1.0f, 1.0f, 1.0f));
// GLuint transLoc = glGetUniformLocation(ourShader.Program, "transform");
// glUniformMatrix4fv(transLoc, 1, GL_FALSE, glm::value_ptr(transform));
// glUniformMatrix4fv(glGetUniformLocation(ourShader.Program, "projection"), 1, GL_FALSE, glm::value_ptr(projection));
// glUniformMatrix4fv(glGetUniformLocation(ourShader.Program, "view"), 1, GL_FALSE, glm::value_ptr(view));
// glUniform3f(glGetUniformLocation(ourShader.Program, "ViewPos"),camera.GetPosition().x,camera.GetPosition().y,camera.GetPosition().z);
// glUniform3f(glGetUniformLocation(ourShader.Program, "LightPos"),lightPos.x,lightPos.y,lightPos.z);
// glUniform1f(glGetUniformLocation(ourShader.Program, "material.diffuse"), 0.8f);
// glUniform1f(glGetUniformLocation(ourShader.Program, "material.specular"), 0.6f);
// glUniform1f(glGetUniformLocation(ourShader.Program, "time"), time);
// glBindVertexArray(VAO);
// glDrawArrays(GL_TRIANGLES, 0, 36);
// glBindVertexArray(0);
// glfwSwapBuffers(window);
// }
//
// glfwTerminate();
// glDeleteVertexArrays(1, &VAO);
// glDeleteBuffers(1, &VBO);
// return 0;
//
//}
//
//void KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mode) {
// if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS) {
// glfwSetWindowShouldClose(window, GL_TRUE);
// }
// if (key >= 0 && key < 1024) {
// if (action == GLFW_PRESS) {
// keys[key] = true;
// }
// else if (action == GLFW_RELEASE)
// {
// keys[key] = false;
// }
// }
//}
//
////void DoMovement() {
//// if (keys[GLFW_KEY_W] || keys[GLFW_KEY_UP])
//// {
//// camera.ProcessKeyboard(FORWARD, deltaTime);
//// }
//// if (keys[GLFW_KEY_S] || keys[GLFW_KEY_DOWN])
//// {
//// camera.ProcessKeyboard(BACKWARD, deltaTime);
//// }
//// if (keys[GLFW_KEY_A] || keys[GLFW_KEY_LEFT])
//// {
//// camera.ProcessKeyboard(LEFT, deltaTime);
//// }
//// if (keys[GLFW_KEY_D] || keys[GLFW_KEY_RIGHT])
//// {
//// camera.ProcessKeyboard(RIGHT, deltaTime);
//// }
////}
//
//void DoMovement() {
// if (keys[GLFW_KEY_W] || keys[GLFW_KEY_UP])
// {
// objectZ -= deltaTime * OBJECT_SPEED;
// }
// if (keys[GLFW_KEY_S] || keys[GLFW_KEY_DOWN])
// {
// objectZ += deltaTime * OBJECT_SPEED;
// }
// if (keys[GLFW_KEY_A] || keys[GLFW_KEY_LEFT])
// {
// objectX -= deltaTime * OBJECT_SPEED;
// }
// if (keys[GLFW_KEY_D] || keys[GLFW_KEY_RIGHT])
// {
// objectX += deltaTime * OBJECT_SPEED;
// }
//}
//
//void ScrollCallback(GLFWwindow* window, double xOffset, double yOffset) {
// if (fov >= 1.0f && fov <= 45.0f)
// fov -= yOffset;
// if (fov < 1.0f)
// fov = 1.0f;
// if (fov > 45.0f)
// fov = 45.0f;
//}
//void MouseCallback(GLFWwindow* window, double xPos, double yPos) {
// if (firstMouse) {
// lastX = xPos;
// lastY = yPos;
// firstMouse = false;
// }
// GLfloat xOffset = xPos - lastX;
// GLfloat yOffset = lastY - yPos;
//
// lastX = xPos;
// lastY = yPos;
//
// camera.ProcessMouseMovement(xOffset, yOffset);
//}
//