你好，三角形

---

#include 
#include 
#include
using namespace std;

void framebuffer_size_callback(GLFWwindow* window, int width, int height){
	glViewport(0, 0, width, height);
}

void processInput(GLFWwindow *window)
{
	if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
		glfwSetWindowShouldClose(window, true);
}

const char* vertexShaderSource="#version 450 core\n"
"layout(location = 0) in vec3 aPos;\n"
"void main()\n"
"{\n"
	"gl_Position = vec4(aPos.x, aPos.y, aPos.z, 1.0);\n"
"}\0";
//顶点着色器


const char *fragmentShaderSource = "#version 450 core\n"
"out vec4 FragColor;\n"
"void main()\n"
"{\n"
"   FragColor = vec4(1.0f, 0.5f, 0.2f, 1.0f);\n"
"}\n\0";
//片段着色器

const unsigned int SCR_WIDTH = 800;
const unsigned int SCR_HEIGHT = 600;

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);

#ifdef __APPLE__
	glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // uncomment this statement to fix compilation on OS X
#endif

	GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "LearnOpenGL", NULL, NULL);
	//宽 高 标题
	if (window == NULL)
	{
		cout << "Failed to create GLFW window" <

 

索引缓冲对象

#include 
#include 
#include
using namespace std;

void framebuffer_size_callback(GLFWwindow* window, int width, int height){
	glViewport(0, 0, width, height);
}

void processInput(GLFWwindow *window)
{
	if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
		glfwSetWindowShouldClose(window, true);
}

const char* vertexShaderSource="#version 450 core\n"
"layout(location = 0) in vec3 aPos;\n"
"void main()\n"
"{\n"
	"gl_Position = vec4(aPos.x, aPos.y, aPos.z, 1.0);\n"
"}\0";
//顶点着色器


const char *fragmentShaderSource = "#version 450 core\n"
"out vec4 FragColor;\n"
"void main()\n"
"{\n"
"   FragColor = vec4(1.0f, 0.5f, 0.2f, 1.0f);\n"
"}\n\0";
//片段着色器

const unsigned int SCR_WIDTH = 800;
const unsigned int SCR_HEIGHT = 600;

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);

#ifdef __APPLE__
	glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // uncomment this statement to fix compilation on OS X
#endif

	GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "LearnOpenGL", NULL, NULL);
	//宽 高 标题
	if (window == NULL)
	{
		cout << "Failed to create GLFW window" <