How to draw an outline of a camera view along a path ?

Hi,

I'm trying to create a debug script that would help to visualize the frustum of my camera along a path. That way I can build my map knowing every time how the element is going to be seen from the camera perspective.

I have the path and i can have the camera borders at any given moment, so for the moment the result I have is a bunch of rectangles drawn on the path.

I have what's on the left and I would like to achieve something like the one on the right. The rectangle may have a random rotation and random size depending on the camera rotation and zoom.

Does someone have an idea of how I could do something like this?