Question

I am needing to code a coffee mug in OpenGL using c++. I have found the coding for a tea kettle but we have been told we cannot use a tea kettle. I have attached a photo for reference. Thank you for any help you can provide!

Answer 1

note:hi dear this code written by my own I think it is correct if u have any doubts on this code free to ask me i explain one by one understand it carefully

#include <GL\glut.h>

GLfloat xRotated, yRotated, zRotated;
GLdouble size=1;


void display(void)
{

    glMatrixMode(GL_MODELVIEW);
    // clear the drawing buffer.
    glClear(GL_COLOR_BUFFER_BIT);
    // clear the identity matrix.
    glLoadIdentity();
    // traslate the draw by z = -4.0
    // Note this when you decrease z like -8.0 the drawing will looks far , or smaller.
    glTranslatef(0.0,0.0,-2,5);

Red color used to draw.
    glColor3f(0.8, 0.2, 0.1);
    // changing in transformation matrix.
    // rotation about X axis
    glRotatef(xRotated,1.0,0.0,0.0);
    // rotation about Y axis
    glRotatef(yRotated,0.0,1.0,0.0);
    // rotation about Z axis
    glRotatef(zRotated,0.0,0.0,1.0);
    // scaling transfomation
    glScalef(1.0,1.0,1.0);
    // built-in (glut library) function , draw you a coffeecup
    glutSolidTeapot(size);
    // Flush buffers to screen
     
    glFlush();        
    // sawp buffers called because we are using double buffering
   // glutSwapBuffers();

}

void reshapeFunc(int x, int y)
{
    if (y == 0 || x == 0) return;  //Nothing is visible then, so return
    //Set a new projection matrix
    glMatrixMode(GL_PROJECTION);  
    glLoadIdentity();
    //Angle of view:40 degrees
    //Near clipping plane distance: 0.5
    //Far clipping plane distance: 20.0
     
    gluPerspective(40.0,(GLdouble)x/(GLdouble)y,0.5,20.0);

    glViewport(0,0,x,y);  //Use the whole window for rendering
}

void idleFunc(void)
{

     yRotated += 0.01;
     
    display();
}

int main(int argc,char **argv)

{

//Initialize GLUT
    glutInit(&argc, argv);
    //double buffering used to avoid flickering problem in animation
    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);  
    // window size
    glutInitWindowSize(400,350);
    // create the window
    glutCreateWindow("Teapot Rotating Animation");
    glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
    xRotated = yRotated = zRotated = 30.0;
     xRotated=33;
     yRotated=40;
    glClearColor(0.0,0.0,0.0,0.0);
    //Assign  the function used in events
    glutDisplayFunc(display);
   glutReshapeFunc(reshapeFunc);
    glutIdleFunc(idleFunc);
    //Let start glut loop
    glutMainLoop();
    return 0;
}