Grasshopper Mesh unroll Fail

Hello Community,
I have a problem to unrolling a triangles mesh in grasshopper.
It’s not a closed volume body.
Only the triangles are there and the ground is gone.
If the ground and the triangles have to be closed, how does it work?

Thanks All

That looks like the Ivy plugin - its developer @nejur might be able to help you

Hi. You need to plug something in the outputs of the unroll component. They are hidden by default. You could plug in a mesh component in the M out for instance.
Alternatively right click on the Sf output and select show mesh.

Ivy has a manual on food4rhino you can find there what each component does. You can find there on food4rhino examples too.