OpenGL示例

main.cpp

#include
#include
#include
#include
#include
#include
using namespace std;

void display(){
    glColor3f(0.25,0.25,0.0);
    glBegin(GL_POLYGON);
        glVertex3f(0.25,0.25,0.0);
        glVertex3f(0.75,0.25,0.0);
        glVertex3f(0.75,0.75,0.0);
        glVertex3f(0.25,0.75,0.0);
    glEnd();
    glFlush();
}

void init(){
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    glOrtho(0.0,1.0,0.0,1.0,-1.0,1.0);
}

int main(int argc,char** argv){
    glutInit(&argc,argv);
    glutInitDisplayMode(GLUT_SINGLE |GLUT_RGB);
    glutInitWindowSize(250,250);
    glutInitWindowPosition(100,100);
    glutCreateWindow("hello");
    init();
    glutDisplayFunc(display);
    glutMainLoop();
    return 0;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.9)
project(CL5)

set(CMAKE_CXX_STANDARD 11)

add_executable(CL5 main.cpp)

target_link_libraries(${PROJECT_NAME} GL GLU glut)