Rotating 2 objects Qt and openGL.
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Hi, There is a program:
@
Widget::Widget(QWidget *parent) :
QGLWidget(parent),
ui(new Ui::Widget)
{ui->setupUi(this); tm = new QTimer(this);}
Widget::~Widget()
{
delete ui;
delete tm;
}void Widget::initializeGL()
{
connect(tm, SIGNAL(timeout()),this, SLOT(update()));
tm->start(10);
}void Widget::resizeGL(int n_width, int n_height)
{glViewport(0, 0, (GLint)n_width, (GLint)n_height);
}void Widget::paintGL()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
draw();
draw2();
}
void Widget::update()
{
updateGL();
}void Widget::draw()
{
glLoadIdentity();
glTranslatef(-0.35f, 0.0f, -0.20f);
glRotatef(65.0f/4.0f, 1.0f, 0.0f, 1.0f);
glBegin(GL_QUADS);
glColor3f(1.0f,0.0f,0.0f);
glVertex3f(-0.5f, 0.5f, 0.0f);
glColor3f(0.0f,1.0f,0.0f);
glVertex3f(-0.5f, -0.5f, 0.0f);
glColor3f(1.0f,0.0f,1.0f);
glVertex3f(0.5f,-0.5f,0.0);
glColor3f(1.0f,1.0f,1.0f);
glVertex3f(0.5f,0.5f,0.0);
glEnd();
}
void Widget::draw2()
{
glLoadIdentity();
glTranslatef(0.45f, 0.0f, 0.50f);
glRotatef(65.0f/4.0f, 0.0f, 1.0f, 1.0f);
glBegin(GL_QUADS);
glColor3f(1.0f,0.0f,0.0f);
glVertex3f(-0.5f, 0.5f, 0.0f);
glColor3f(0.0f,1.0f,0.0f);
glVertex3f(-0.5f, -0.5f, 0.0f);
glColor3f(1.0f,0.0f,1.0f);
glVertex3f(0.5f,-0.5f,0.0);
glColor3f(1.0f,1.0f,1.0f);
glVertex3f(0.5f,0.5f,0.0);
glEnd();
}
@After starting the program, a square defined functions Drava () drev2 () remain nepodvizhny.Pri window is resized so the rotation does not occur.
Prompt in what could be the problem? Version Qt 4.8. OpenGL 3.3
