Vectrosity: layers and camera views

I’m currently rendering the VectorCam view into a render texture which is displayed using Graphics.DrawTexture so it can be placed and clipped as desired. What I would like to do is have some objects on another layer so that I can overlay as needed.

Can we (and how) place Vectrosity objects into separate layers for camera culling? I’ve tried setting the vectorLayer (then calling setCamera) before drawing some objects; however, they always seem to have the default layer 31 set.

If I do

Vector.vectorLayer = 20;
Vector.SetCamera();
// line drawing stuff

then all lines are drawn with layer 20.