OpenGL最新环境glfw+glew+glm+SOIL

#include <stdio.h> #include <stdlib.h> #include <GL\glew.h> #include <GLFW\glfw3.h> #include <iostream> #include <string> #include <SOIL\SOIL.h> #include "shader.h" #include <glm\glm.hpp> //变换函数 #include <glm/gtc/matrix_transform.hpp> #include <glm/gtc/type_ptr.hpp> #define VALS_PER_VERT 3 #define NUM_VERTS 3 bool keys[1024]; glm::vec3 cameraPos = glm::vec3(0.0f, 0.0f, 3.0f); glm::vec3 cameraFront = glm::vec3(0.0f, 0.0f, -1.0f); glm::vec3 cameraUp = glm::vec3(0.0f, 1.0f, 0.0f); unsigned int programID; unsigned int vertexVaoHandle; unsigned int lightProgramID; unsigned int lightVertexs; //创建纹理ID GLuint texture0; GLuint texture1; // Window dimensions const GLuint WIDTH = 800, HEIGHT = 600; //设置鼠标初始位置 GLfloat lastX = 400, lastY = 300; GLfloat yaw = 0, pitch = 0; //滚轮缩放属性 默认为45.0f GLfloat aspect = 45.0f; static void error_callback(int error, const char* description) { fputs(description, stderr); } void do_movement(); void mouse_callback(GLFWwindow* window, double xPos, double yPos); void scroll_callback(GLFWwindow* window, double xoffset, double yoffset); void key_callback(GLFWwindow* window, int key, int scancode, int action, int mode); void LoadTexture(const char* imgPath) { // 设置纹理扩展参数 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); //设置纹理的过滤方式 邻近过滤（适合于缩小） 线性过滤（适合于放大） glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); //纹理加载 int width, height; //载入图片 返回宽高 数据 unsigned char* image = SOIL_load_image(imgPath, &width, &height, 0, SOIL_LOAD_RGB); //生成纹理 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, image); glGenerateMipmap(GL_TEXTURE_2D); //生成完成后释放 数据缓存 SOIL_free_image_data(image); glBindTexture(GL_TEXTURE_2D, 0); } int setVertexData() { //三个顶点-一个三角形 一个面-两个三角形 立方体-六个面 //后面两位 S T float vertices[] = { // positions // normals // texture coords -0.5f, -0.5f, -0.5f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.5f, -0.5f, -0.5f, 0.0f, 0.0f, -1.0f, 1.0f, 0.0f, 0.5f, 0.5f, -0.5f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f, 0.5f, 0.5f, -0.5f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f, -0.5f, 0.5f, -0.5f, 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, -0.5f, -0.5f, -0.5f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, 0.5f, 0.5f, 0.5f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, 0.5f, 0.5f, 0.5f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, -0.5f, 0.5f, 0.5f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, -0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, -0.5f, 0.5f, 0.5f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, -0.5f, 0.5f, -0.5f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, -0.5f, -0.5f, -0.5f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, -0.5f, -0.5f, -0.5f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, -0.5f, -0.5f, 0.5f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.5f, 0.5f, 0.5f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.5f, 0.5f, 0.5f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.5f, 0.5f, -0.5f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.5f, -0.5f, -0.5f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.5f, -0.5f, -0.5f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.5f, -0.5f, 0.5f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.5f, 0.5f, 0.5f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, -0.5f, -0.5f, -0.5f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.5f, -0.5f, -0.5f, 0.0f, -1.0f, 0.0f, 1.0f, 1.0f, 0.5f, -0.5f, 0.5f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.5f, -0.5f, 0.5f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f, -0.5f, -0.5f, 0.5f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, -0.5f, -0.5f, -0.5f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, -0.5f, 0.5f, -0.5f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.5f, 0.5f, -0.5f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, -0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, -0.5f, 0.5f, -0.5f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f }; glGenVertexArrays(1, &vertexVaoHandle); glBindVertexArray(vertexVaoHandle); unsigned int buffer; glGenBuffers(1, &buffer); //数组缓存 glBindBuffer(GL_ARRAY_BUFFER, buffer); glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); glEnableVertexAttribArray(0); glVertexAttribPointer(0, NUM_VERTS, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), 0); //此处传入 面的法向量 glEnableVertexAttribArray(1); glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), (GLvoid*)(3 * sizeof(GLfloat))); //传入贴图位置 信息 glEnableVertexAttribArray(2); glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), (GLvoid*)(6 * sizeof(GLfloat))); //解绑 顶点数组 glBindVertexArray(0); //这个清空会不会影响后续程序---拭目以待？开始把纹理去掉 然儿 不会影响 glBindBuffer(GL_ARRAY_BUFFER, 0); //获取纹理内存 glGenTextures(1, &texture0); //绑定纹理 供后续使用 glBindTexture(GL_TEXTURE_2D, texture0); LoadTexture("container2.png"); glGenTextures(1, &texture1); ////绑定纹理 供后续使用 glBindTexture(GL_TEXTURE_2D, texture1); LoadTexture("container2_specular.png"); glGenVertexArrays(1, &lightVertexs); glBindVertexArray(lightVertexs); glBindBuffer(GL_ARRAY_BUFFER, buffer); glEnableVertexAttribArray(0); glVertexAttribPointer(0, NUM_VERTS, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), 0); glBindVertexArray(0); glBindBuffer(GL_ARRAY_BUFFER, 0); return 0; } void render() { //清除景深 和颜色 缓存 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //设置背景颜色 glClearColor(0.2f, 0.5f, 0.6f,0.5f); // 渲染 启用景深 深度测试 glEnable(GL_DEPTH_TEST); //声明一个光源的位置 glm::vec3 lightPos(1.1f, 1.0f, 1.5f); glUseProgram(programID); glUniform1i(glGetUniformLocation(programID, "material.diffuse"), 0); glUniform1i(glGetUniformLocation(programID, "material.specular"), 1); glUniform1f(glGetUniformLocation(programID, "material.shininess"), 32.0f); //纹理 加载 glActiveTexture(GL_TEXTURE0); glBindTexture(GL_TEXTURE_2D, texture0); glActiveTexture(GL_TEXTURE1); glBindTexture(GL_TEXTURE_2D, texture1); //model中的坐标位置 glm::vec3 cubePosition[] = { glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(2.0f, 5.0f, -15.0f), glm::vec3(-1.5f, -2.2f, -2.5f), glm::vec3(-3.8f, -2.0f, -12.3f), glm::vec3(2.4f, -0.4f, -3.5f), glm::vec3(-1.7f, 3.0f, -7.5f), glm::vec3(1.3f, -2.0f, -2.5f), glm::vec3(1.5f, 2.0f, -2.5f), glm::vec3(1.5f, 0.2f, -1.5f), glm::vec3(-1.3f, 1.0f, -1.5f) }; //点光源位置信息 glm::vec3 pointLightPositions[] = { glm::vec3(0.7f, 0.2f, 2.0f), glm::vec3(2.3f, -3.3f, -4.0f), glm::vec3(-4.0f, 2.0f, -12.0f), glm::vec3(0.0f, 0.0f, -3.0f) }; glUniform3f(glGetUniformLocation(programID, "viewerPos"), cameraPos.x, cameraPos.y, cameraPos.z);//传入观察者 坐标 就是摄像机坐标 // 在此之前不要忘记首先'使用'对应的着色器程序(来设定uniform) 给物体设置光照颜色 反射颜色 glUniform3f(glGetUniformLocation(programID, "spotLight.color"), 1.0f, 1.0f, 1.0f); // 依旧把光源设置为白色 //聚光灯是输入 目前未使用 glUniform3f(glGetUniformLocation(programID, "spotLight.position"), cameraPos.x, cameraPos.y, cameraPos.z);//传入光源位置 glUniform3f(glGetUniformLocation(programID, "spotLight.direction"), cameraFront.x, cameraFront.y, cameraFront.z); glUniform3f(glGetUniformLocation(programID, "spotLight.ambient"), 0.2f, 0.2f, 0.2f);//传入光源位置 glUniform3f(glGetUniformLocation(programID, "spotLight.diffuse"), 0.5f, 0.5f, 0.5f);//传入光源位置 glUniform3f(glGetUniformLocation(programID, "spotLight.specular"), 1.0f, 1.0f, 1.0f);//传入光源位置 glUniform1f(glGetUniformLocation(programID, "spotLight.constant"), 1.0f); glUniform1f(glGetUn