When I use the Drawcurve sop, I can use the primitive v@stroke_projdir to project my curve (or extrude it) from my point of view(perspective). It's super useful but I would like the same thing from a Curve Sop. Any ideas how to do this? is it easily possible?

I can see that the Stroke Sop inside the Drawcurve generates that attibute but I dont know if I can take advantage of it...

-Olivier