Hello,
I am new to grasshopper and am wanting to add a subtle concentric ribbed pattern to this subd form (indicated by the black lines), however I cannot figure out how to start.
I have the subD base form but I am unable to create a single surfaces to offset the curves onto.
How would you tackle this?
Thank you in advance.
subd does not work like this.
you need topology that reflects your shape and keeps rule of three in mind for transitions.
your topo would look more this like
one way to do this is to lay it out dead flat then project it onto a shape that represents half of your object. then mirror, join and select the edges that make up your ribs and scale them from the center out.
result
Hi Kyle,
Thank you for the prompt reply and instruction.
Just to clarify is the flat a flat subD or a surface? Would you be able to share you working file?
Also apologies for the confusion, I do not wish to model the vase, that was an example of the type of fluting I wanted to create on the subd but in the arrangement below:
To be honest, what you suggest in your most recent post would in my opinion be a typical case of surface modelling with NURBS surfaces.
to answer your 1st question, that is a subd laid out flat to make it easier to layout the topology
yep, and that is completely possible in subd, just arrange you topology in a way that gives you faces in that orientation.
Sorry, I’d be happy to share the file, but I just did that as a quick demo then trashed the file…
dig thru the subd videos on our yt page… all the info you need to do this is there.
start with rule of three, and the paperdoll modeling videos.
as @Lagom pointed out however, you could certainly just project those curves, pipe trim them and do 2 rail sweeps to fill the gaps, using basic nurbs modeling.
Touché, which is what “Rhino - NURBS modelling for Windows” is made for and fairly good at ; )
