week03 老師講得好詳細

#include <GL/glut.h>

static void display(void)
{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glColor3f(72/255.0,52/255.0,32/255.0); ///顏色(R,G,B)
    glutSolidTeapot(0.3);

    glutSwapBuffers();
}

int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");
    glutDisplayFunc(display);
    glutMainLoop();

    return EXIT_SUCCESS;
}


Vertex 頂點 Edge 邊

可以更改頂點交換位置

#include <GL/glut.h>

static void display(void)
{
    glBegin(GL_POLYGON);
        glColor3f(1,0,0);  //顏色(R,G,B)
        glVertex3f(0,0,0); //3個浮點數點座標位置(x,y,z)

        glColor3f(0,1,0);
        glVertex3f(1,1,0);

        glColor3f(0,0,1);
        glVertex3f(-1,1,0);
    glEnd();

    glutSwapBuffers();
}

int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");//視窗名稱可自訂
    glutDisplayFunc(display);///使用display函式
    glutMainLoop();

    return EXIT_SUCCESS;
}