C++ (Qt)renderer->setProjectionMatrixToRect(QRectF(QPoint(0, 0), logicalSize), flipY);auto matrix = renderer->projectionMatrix();matrix.rotate(90.0f, 1.0f, 0.0f); // не уверен какой вектор тут использоватьrenderer->setProjectionMatrix(matrix);
C++ (Qt)matrix.rotate(10.0f, 0.0f, 0.0f, 1.0f);