algorithmic modeling for Rhino
Hi Humberto, I'm getting exactly the same problem, did you manage to fix it?
I haven't been able to fix it yet.
Do you know if there's some other way to visualize the shadows?
You've set it up properly, but it's important that the mesh be "Dense", meaning that it has many vertices. Try creating mesh boxes with 10x10x10 vertices to start. The resolution of the shadow is dependent on the resolution of the mesh.
If you're still unable to make this work, upload your definition and I will take a look.