I stuck in a problem: i need to apply a perspective 2D transformation to QGLWidget based on perspective transformation obtained with OpenCV.
Basically, I need to pre-warp the scene with this matrix before projecting.
I've try to use Euler Angle (obtain from RQDecomp3x3) but without success.
I've already use QPainter and I've applied a QTransform and it works for 2D but not for 3D application.