OpenGl Overlaid with QPainter

[epalmero]

Dear All:

I am using the new Qt5.4 and I need to do some overlaid of OpenGL draw with the normal QPainter draw. I have override the @paintEvent@ function and I have writting the following code:

@QPainter painter;
painter.begin(this);

makeCurrent();
paintGL();

glEnable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE);
glDisable(GL_BLEND);
glViewport(0, 0, this->width(), this->height());

QPen pen;
pen.setColor(Qt::white);
painter.setPen(pen);
painter.fillRect(QRectF(10.0, 10.0, 50, 50), Qt::red);
//painter.drawText(QRectF(10.0, 10.0, 50, 50), Qt::AlignCenter, "Pepe");
painter.end();@

in the paintGL function I have:

@ glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

for (auto &scene : renderScenes_)
        scene->paint();@

which is where I draw the OpenGl stuff. For some reason I don't arrive to see the fillRect except if I remove the @for (auto &scene : renderScenes_)
scene->paint();@ part. I don't know why because I am just sending normal openGl commands there. Is there anything that I have to paid specal attention?

All the best
Ernesto