Populating a Surface with Polygons Extruded to a Point
Monday, October 27, 2008 0:37
In this tutorial we will create a surface that is controlled with a cage edit modifier. Then using Grasshopper we will populate that surface with polygons. You will be able to control the number of sides of the polygons through a slider. These polygons will be extruded to a point and that extends normal to the surface at a length determined by the distance of the points on the surface and the XY origin plane. In other words the length of the extrusions will be equal to the Z component of the point.
Any comments would be appreciated. Or if there is something you would like to see please feel free to let me know by leaving a comment and I’ll try and answer your questions.
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fernando herrera says:
November 6th, 2008 at 12:55 am
thank you very much for doing this!..i hope you can keep posting more tutorials!
joe the new gh user says:
November 8th, 2008 at 10:07 pm
Is it possible to generate halftone or circle patterns based surface’s (input) falloff?
Fabian (in San Diego) says:
November 9th, 2008 at 12:19 am
Really nice..Thanks for the tutorial
zach says:
November 16th, 2008 at 1:18 am
Joe, I think it would be pretty easy to generate a halftone/circle pattern for surface using a control surface. If you create a falloff map in photoshop you can import that into Rhino as a heightfield and use the z-depth values as distance values to control the radii of the circle/halftone pattern. I’ll try and work up a tutorial on how this could be done and post it.
zach says:
November 16th, 2008 at 1:18 am
Thank you to all for you feedback I really appreciate it.
zach says:
November 18th, 2008 at 3:42 am
Joe, see the latest post called “Creating Surface Patterns Using Bump Maps Created in Photoshop as an imput parameter in Rhino’s Grasshopper.” I’m not sure if this is what you were referring to with you previous question but let me know if this helps.
Paneling tools for rhino tutorial | Rhinoceros says:
November 28th, 2008 at 1:44 pm
[...] Populating a Surface with Polygons Extruded to a Point [...]
kike says:
May 15th, 2009 at 1:04 am
hi zach…. i am fascinated with grasshopper, i took some classes and i think it is an amazing design tool, and with your tutorial something are getting more clear now, thanks a lot for your posts