I have a problem with setting Surfaces in Grasshopper and Rhino. Whenever I have a surface in Grasshopper and right-click “Set one Surface”, it won’t let me select my surfaces in Rhino. I see many people in videos do it and all of my colleagues can do the exact same thing but for some weird reason I can’t. I’m working on my PC right now and It doesnt even work on my laptop. I can’t find any solution online. Hopefully someone can help me.
Maybe good to know: Planar Surfaces on the grid work but I’m talking about simple extruded curves. We are working with Voronoi atm and in the tutorials they draw a curve, extrude it and set the extrusion as surface in GH. This doesn’t work for me.
when you extrude a curve in rhino it becomes an Extrusion (check by typing what with one selected) Extrusions are lightweight representations of extruded geometry that use the 2d input curve and path to draw, rather than a list of connected faces and edges. You need to Explode the extrusion to turn it into a surface. You can reference extrusions as Geometry, Brep or Data. just not as Surface
Thank you, the problem is that we use Weaverbird and we need a surface for that. And this doesn’t explain why my colleagues can do it^^When they use an extruded curve they can select it without any issue.
See how it’s made of 4 surfaces? You need to explode it again and select a single surface. This is why we need to see a file. Screengrabs are great too. If your input curve is smooth you’ll get a single surface when you extrude. However if it has links or corners you’ll get multiple surfaces or a polysurface
I’m more interested to know why you need surfaces as input. This is most likely a hangover from the interests or biases of the person who made the tutorial you’re following. Surely there’s a way to work around this limitation? What’s the goal?
Thank you. Yes, I see. The goal is to make a Voronoi-wall and I use weaverbird as plugin which needs a surface as input.
This is the video I am watching atm: grasshopper voronoi wall facade on any surface |GRasshopper for architecture |[3d beast] - YouTube
From 7:55 you see he makes a curve on the grid, extrudes it and then sets it as surface.
I use this tutorial because I want to give our preexisting wall the voronoi texture. I don’t have much experience in GH, so I don’t know how to work around this.