OpenGL
sudo apt-get install cmake make g++ libx11-dev libgl1-mesa-dev libglu1-mesa-dev libxrandr-dev libxext-dev freeglut3-dev freeglut3 freeglut3-dbg
# libxi-dev x11proto-xf86vidmode-dev
// gcc opengl.c -lGL -lglut -o opengl
// #include "GL/glut.h"
#include <GL/freeglut.h>
#include <GL/gl.h>
void display();
int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutCreateWindow("example");
glutDisplayFunc(display);
glutMainLoop();
return 0;
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_POLYGON);
glVertex2f(-0.5, -0.5);
glVertex2f(-0.5, 0.5);
glVertex2f( 0.5, 0.5);
glVertex2f( 0.5, -0.5);
glEnd();
glFlush();
}
// g++ opengl-cpp.cpp -lGL -lglut -o opengl-cpp
// #include "GL/glut.h"
#include "GL/freeglut.h"
#include "GL/gl.h"
/* display function - code from:
http://fly.cc.fer.hr/~unreal/theredbook/chapter01.html
This is the actual usage of the OpenGL library.
The following code is the same for any platform */
void renderFunction()
{
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0, 1.0, 1.0);
glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
glBegin(GL_POLYGON);
glVertex2f(-0.5, -0.5);
glVertex2f(-0.5, 0.5);
glVertex2f(0.5, 0.5);
glVertex2f(0.5, -0.5);
glEnd();
glFlush();
}
/* Main method - main entry point of application
the freeglut library does the window creation work for us,
regardless of the platform. */
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE);
glutInitWindowSize(500,500);
glutInitWindowPosition(100,100);
glutCreateWindow("OpenGL - First window demo");
glutDisplayFunc(renderFunction);
glutMainLoop();
return 0;
}