How to display an array of vertices as a mesh in QML3D.

[lockheed]

How to runtime generate a square, curved pipe between given points? I have already a curved line between them (thanks to Bezier), and now the challenge is to 'inflate' it. Turn 2d line into 3d curved cuboid. I have a basic knowledge how to turn a line into an vertex of triangles. But I am green, when it comes to display them inside QML.

The first step is to load array of floats with triangles vertices into QBuffer I think. But what goes next?

1. How to generate such an array from a line (array of 2d points).
2. How to render QBuffer into QML 3D scene?