Qt samples error: ‘gluPerspective’ was not declared in this scope

error: ‘gluPerspective’ was not declared in this scope compilando l’esempio QT 4.8 la funzione è obsoleta nelle GLUT la si può rimpiazzare con: void gluPerspective(double fovy,double aspect, double zNear, double zFar) {  // Start in projection mode.  glMatrixMode(GL_PROJECTION);  glLoadIdentity();  double Continua a leggere Qt samples error: ‘gluPerspective’ was not declared in this scope