How to install openGL

openGL in Ubuntu, graphics library and API used for creating and manipulating 2D and 3D graphics.

• Install compiler, GCC(GNU Compiler Collection)

sudo apt-get install g++

• Install OpenGL library and developement header file

sudo apt-get install libgl1-mesa-dev

• Install Visual studio code

• Install C/C++ extension

• Generate project and move to project file

• Generate project file ‘main.cpp’

• example code

  • generate OpenGL window and display triangle

#include <GL/glut.h>

// Display callback function
void display() {
    glClear(GL_COLOR_BUFFER_BIT);  // Clear the color buffer
    glBegin(GL_TRIANGLES);  // Begin drawing triangles
    glColor3f(1.0f, 0.0f, 0.0f);  // Set color to red
    glVertex2f(0.0f, 1.0f);  // Vertex 1 (top)
    glColor3f(0.0f, 1.0f, 0.0f);  // Set color to green
    glVertex2f(-1.0f, -1.0f);  // Vertex 2 (bottom-left)
    glColor3f(0.0f, 0.0f, 1.0f);  // Set color to blue
    glVertex2f(1.0f, -1.0f);  // Vertex 3 (bottom-right)
    glEnd();  // End drawing triangles
    glFlush();  // Flush the OpenGL pipeline
}

int main(int argc, char** argv) {
    glutInit(&argc, argv);  // Initialize GLUT
    glutCreateWindow("Simple OpenGL Example");  // Create a window
    glutDisplayFunc(display);  // Set the display callback function
    glutMainLoop();  // Enter the main loop
    return 0;
}

• Build
  • main.cpp: C++ 소스 파일 이름
  • -o main: 빌드된 실행 파일 이름을 “main”으로 지정합니다.
  • -lGL -lGLU -lglut: OpenGL 관련 라이브러리를 링크합니다.

g++ -o main main.cpp -lGL -lGLU -lglut

• Execute

./main

• Result