Ladybug complex geometric Vector-Based Shadow Study

Hello everybody

I´m new here and I´m also new with Grasshopper.

I have tried to make a vector based shadow study with the code from Hydra.

( http://hydrashare.github.io/hydra/viewer?owner=chriswmackey&for... )

It worked fine with basic geometries. But when I put my projects geometry in the input it was loading for ages and I had to stop it.

Than I reduced my geometry and picked up some elements from it. Curved nurbs surfaces. I have drawn it in Rhino ( _networksrf)

With the reduced geometry I got some output after a long time (although I have a fast PC) but it wasn´t well. The shadows vectors were fragmentary ( attached file)

Is the code incomplete for geometries like mine? Or is it the wrong approach for those curved surfaces? Is there any better code for my aim?

Thx for your help

Leo