Re: Cylinder draw using QT opengl functions

["Yuriy Rusinov"]

Hello, Enrico, All !

 void GLWidget :: paintGL (void)
 {
    glClear( GL_COLOR_BUFFER_BIT );
    glMatrixMode (GL_MODELVIEW); // should be already in GL_MODELVIEW..
    glColor3d (1, 0, 0);

    GLUquadricObj* q = gluNewQuadric ();
    GLUnurbsObj* nobs = gluNewNurbsRenderer ();
    gluBeginSurface (nobs);
    gluCylinder (q, (GLdouble)cyl_radius, (GLdouble)cyl_radius, (GLdouble)cyl_height, 32, 32);
    gluEndSurface (nobs);
    gluDeleteNurbsRenderer (nobs);
    gluDeleteQuadric (q);
 }

Good luck with your GFX programs, and enjoy OpenGL programming ;-)
Also take the time, after experimenting a bit more, to read the first
pages of the OpenGL specifications that will teach you how the graphics
pipeline is modeled in OpenGL.

 

I am sorry, but after changes my program draws nothing. Now I read opengl documentation and make new attempt to draw. Thanks in advance.

-- 
Best regards,
Sincerely yours,
Yuriy Rusinov