# \#polysurface

**URL:** https://discourse.mcneel.com/tag/polysurface/16.md

[Latest](https://discourse.mcneel.com/latest.md) · [Categories](https://discourse.mcneel.com/categories.md) · [Tags](https://discourse.mcneel.com/tags.md)

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## [Continuous 3D pattern across adjacent surfaces / Brep](https://discourse.mcneel.com/t/continuous-3d-pattern-across-adjacent-surfaces-brep/222666)

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**Author:** [@Dušan\_Amrich](https://discourse.mcneel.com/u/Du%C5%A1an_Amrich)\
**Replies:** 3\
**Last updated:** [September 13, 2026, 3:54pm UTC](https://discourse.mcneel.com/t/continuous-3d-pattern-across-adjacent-surfaces-brep/222666 "2026-09-13T15:54:01Z")

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Hello guys, I am trying to map a continuous 3D pattern across a polysurface (Brep) consisting of multiple adjacent UV surfaces (NURBS). I’ve followed several tutorials and experimented with standard UV-mapping technique…

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## [How do I keep voronoi multipipe inside original polysurface boundry](https://discourse.mcneel.com/t/how-do-i-keep-voronoi-multipipe-inside-original-polysurface-boundry/219282)

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**Author:** [@LuRo](https://discourse.mcneel.com/u/LuRo)\
**Replies:** 2\
**Last updated:** [June 8, 2026, 12:25am UTC](https://discourse.mcneel.com/t/how-do-i-keep-voronoi-multipipe-inside-original-polysurface-boundry/219282 "2026-06-08T00:25:50Z")

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Voronoi problem.3dm (369.1 KB) Voronoi problem.gh (18.7 KB) Hi everyone, I am working in grasshopper in rhino 7 and don’t know the proper solution for this problem. I applied a Voronoi texture according to tutorial t…

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## [Help Modeling Sweep Along Curves](https://discourse.mcneel.com/t/help-modeling-sweep-along-curves/217289)

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**Author:** [@Dane\_Sosna](https://discourse.mcneel.com/u/Dane_Sosna)\
**Replies:** 3\
**Last updated:** [March 23, 2026, 11:28pm UTC](https://discourse.mcneel.com/t/help-modeling-sweep-along-curves/217289 "2026-03-23T23:28:12Z")

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Hi, I was trying to create a 3d revolved/swept object from the curves in this image. I’ve also attached a file. I feel like there is a command to do what I want, but I can’t seem to find it. I want to use two profile cu…

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## [How to Unsplit a polysurface?](https://discourse.mcneel.com/t/how-to-unsplit-a-polysurface/216313)

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**Author:** [@Luke\_Kelly](https://discourse.mcneel.com/u/Luke_Kelly)\
**Replies:** 2\
**Last updated:** [February 25, 2026, 2:18am UTC](https://discourse.mcneel.com/t/how-to-unsplit-a-polysurface/216313 "2026-02-25T02:18:07Z")

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Hey guys, How can I unsplit this face? I was working on another part of the model and must have accidently projected and split this part. This was during a previous session so I cant just ctrl z my way back. How can …

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## [Radial dim annotation not displaying next to radius being dimensioned](https://discourse.mcneel.com/t/radial-dim-annotation-not-displaying-next-to-radius-being-dimensioned/214788)

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**Author:** [@Paul45](https://discourse.mcneel.com/u/Paul45)\
**Replies:** 3\
**Last updated:** [January 21, 2026, 10:42am UTC](https://discourse.mcneel.com/t/radial-dim-annotation-not-displaying-next-to-radius-being-dimensioned/214788 "2026-01-21T10:42:38Z")

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When I try to use the radial dimension command on the corner of a polysurface that is curved, the annotation now seems to auto locate to a different c-plane in the middle of the object, nowhere near the radius I am tryin…

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## [Too many surfaces problem with polysurface](https://discourse.mcneel.com/t/too-many-surfaces-problem-with-polysurface/214691)

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**Author:** [@lehi](https://discourse.mcneel.com/u/lehi)\
**Replies:** 10\
**Last updated:** [January 20, 2026, 10:53am UTC](https://discourse.mcneel.com/t/too-many-surfaces-problem-with-polysurface/214691 "2026-01-20T10:53:30Z")

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Hi! I have beeen working on a model between fussion and rhino. The surface number is very high ı could not find to reduce this could you help me. “polysurface ID: c9700b52-cda3-4cd1-8060-e0baee2502f8 (22764) Object na…

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## [BUG Join: Preserve individual custom texture mappings when joining](https://discourse.mcneel.com/t/bug-join-preserve-individual-custom-texture-mappings-when-joining/212977)

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**Author:** [@AlanMattano](https://discourse.mcneel.com/u/AlanMattano)\
**Replies:** 5\
**Last updated:** [December 1, 2025, 8:53pm UTC](https://discourse.mcneel.com/t/bug-join-preserve-individual-custom-texture-mappings-when-joining/212977 "2025-12-01T20:53:52Z")

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Expected vs Actual Bug Request Join: Add option to preserve individual custom texture mappings by auto-assigning separate channels. Old request, and the need remains important in 2025 (Rhino 8+): Without this option…

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## [Open Polysurface and Naked Edges](https://discourse.mcneel.com/t/open-polysurface-and-naked-edges/212344)

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**Author:** [@Lucas\_Solis](https://discourse.mcneel.com/u/Lucas_Solis)\
**Replies:** 3\
**Last updated:** [November 13, 2025, 3:19pm UTC](https://discourse.mcneel.com/t/open-polysurface-and-naked-edges/212344 "2025-11-13T15:19:21Z")

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Hello, I am a first year architecture student, our assignment was to model our paper folding models, and I thought I was done, but it seems I am still lacking enough info to know why I have naked edges all around my pape…

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## [How to patch this together](https://discourse.mcneel.com/t/how-to-patch-this-together/210477)

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**Author:** [@SAMS](https://discourse.mcneel.com/u/SAMS)\
**Replies:** 2\
**Last updated:** [October 2, 2025, 5:55am UTC](https://discourse.mcneel.com/t/how-to-patch-this-together/210477 "2025-10-02T05:55:53Z")

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Hello, I am trying to patch this together, making them a closed polysurface. Is it possible? Thanks!:smiley: How to patch this.3dm (940.0 KB)

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## [Modifying polysurface edges or faces destroys object](https://discourse.mcneel.com/t/modifying-polysurface-edges-or-faces-destroys-object/207341)

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**Author:** [@samface](https://discourse.mcneel.com/u/samface)\
**Replies:** 7\
**Last updated:** [July 22, 2025, 1:38am UTC](https://discourse.mcneel.com/t/modifying-polysurface-edges-or-faces-destroys-object/207341 "2025-07-22T01:38:56Z")

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Hi all, I’ve seen this problem quite a bit. I have a complex model at a specific, geo-located point (far away from the origin). I understand that this might cause problems, though that in itself seems like a significan…

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## ["MergeAllCoplanarFaces" for Cylinders](https://discourse.mcneel.com/t/mergeallcoplanarfaces-for-cylinders/204891)

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**Author:** [@CarlosFilho](https://discourse.mcneel.com/u/CarlosFilho)\
**Replies:** 6\
**Last updated:** [May 26, 2025, 7:54am UTC](https://discourse.mcneel.com/t/mergeallcoplanarfaces-for-cylinders/204891 "2025-05-26T07:54:16Z")

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Sounds like a stupid question, but I think it gives a better idea of what I want to accomplish. If I have a cylinder, and I extrude it on its lenght, Rhino creates/mantains a “seam line” on the point from where the extr…

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## ['Adding' thickness to a polysurface. 3Dprint - MS Thesis - Urgent](https://discourse.mcneel.com/t/adding-thickness-to-a-polysurface-3dprint-ms-thesis-urgent/204245)

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**Author:** [@Koen\_Schutyser](https://discourse.mcneel.com/u/Koen_Schutyser)\
**Replies:** 1\
**Last updated:** [May 8, 2025, 9:58pm UTC](https://discourse.mcneel.com/t/adding-thickness-to-a-polysurface-3dprint-ms-thesis-urgent/204245 "2025-05-08T21:58:28Z")

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Hey everyone, For my thesis i need to give my polysurface a thickness of 20mm or 10mm both sides. It needs to be a solid. So i can slice it and 3D print it. However i cant seem to enable ‘Solid’ and ‘BothSides’ at the s…

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## [Can't apply my pattern to this polysurface?](https://discourse.mcneel.com/t/cant-apply-my-pattern-to-this-polysurface/201851)

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**Author:** [@Frankie\_M](https://discourse.mcneel.com/u/Frankie_M)\
**Replies:** 6\
**Last updated:** [March 23, 2025, 9:18pm UTC](https://discourse.mcneel.com/t/cant-apply-my-pattern-to-this-polysurface/201851 "2025-03-23T21:18:18Z")

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I have been trying to use flowalongsrf to apply this pattern to my form, it was a subd shape turned into polysurface. Many attempts later it still only detects one surface out of the rest so I have to use flowalongsrf ma…

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## [Split holes when open on solid works](https://discourse.mcneel.com/t/split-holes-when-open-on-solid-works/201206)

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**Author:** [@Gattuso](https://discourse.mcneel.com/u/Gattuso)\
**Replies:** 3\
**Last updated:** [March 12, 2025, 9:15pm UTC](https://discourse.mcneel.com/t/split-holes-when-open-on-solid-works/201206 "2025-03-12T21:15:06Z")

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Hi Everyone I have a problem with the holes on close polysrf (through or not), they split in two when opened on solidworks (no other way accepted) on solid it’s easy to fix but take time, and I would like to solve this …

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## [Simplify Complex Polysurface](https://discourse.mcneel.com/t/simplify-complex-polysurface/200539)

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**Author:** [@Molly3](https://discourse.mcneel.com/u/Molly3)\
**Replies:** 2\
**Last updated:** [February 28, 2025, 6:46pm UTC](https://discourse.mcneel.com/t/simplify-complex-polysurface/200539 "2025-02-28T18:46:07Z")

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Hello everyone, I have been editing the shape of a polysurface using a CageEdit and selecting the polysurface as the captive object. I know I could select control points as the captive object and thus edit the shape wit…

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## [Help asap finals!](https://discourse.mcneel.com/t/help-asap-finals/196188)

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**Author:** [@Anne7](https://discourse.mcneel.com/u/Anne7)\
**Replies:** 5\
**Last updated:** [December 8, 2024, 11:45pm UTC](https://discourse.mcneel.com/t/help-asap-finals/196188 "2024-12-08T23:45:50Z")

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PLS HELP ASAP FINALS!!! Can someone please tell me how I can get rid of these lines on the top left white rectangle? It’s a 4pts to surface command – extruding a rectangle doesn’t work because there’s a small issue with …

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## [Help asap for final](https://discourse.mcneel.com/t/help-asap-for-final/196184)

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**Author:** [@Anne7](https://discourse.mcneel.com/u/Anne7)\
**Replies:** 3\
**Last updated:** [December 8, 2024, 11:15am UTC](https://discourse.mcneel.com/t/help-asap-for-final/196184 "2024-12-08T11:15:12Z")

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PLS HELP ASAP FINALS!!! Can someone please tell me how I can get rid of these lines on the top left white rectangle? It’s a 4pts to surface command – extruding a rectangle doesn’t work because there’s a small issue with…

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## [Closing a polysurface with naked edges](https://discourse.mcneel.com/t/closing-a-polysurface-with-naked-edges/194299)

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**Author:** [@MyName](https://discourse.mcneel.com/u/MyName)\
**Replies:** 2\
**Last updated:** [November 5, 2024, 2:56am UTC](https://discourse.mcneel.com/t/closing-a-polysurface-with-naked-edges/194299 "2024-11-05T02:56:02Z")

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How do I close the polysurface with naked edges for boolean operations?

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## [Patch surface no work? Increase Span and Flexibility!](https://discourse.mcneel.com/t/patch-surface-no-work-increase-span-and-flexibility/175920)

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**Author:** [@Gears\_Gears](https://discourse.mcneel.com/u/Gears_Gears)\
**Replies:** 27\
**Last updated:** [September 25, 2024, 10:26am UTC](https://discourse.mcneel.com/t/patch-surface-no-work-increase-span-and-flexibility/175920 "2024-09-25T10:26:18Z")

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Hi community, I notice that patch-surface always miss the corner of input curves–I can increase Flexibility by a ton, and the legend always misses. How can I fix this? I need patch surface because I have cases where th…

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## [Help with applying voronoi to subd model](https://discourse.mcneel.com/t/help-with-applying-voronoi-to-subd-model/182978)

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**Author:** [@lari](https://discourse.mcneel.com/u/lari)\
**Replies:** 4\
**Last updated:** [June 1, 2024, 11:32pm UTC](https://discourse.mcneel.com/t/help-with-applying-voronoi-to-subd-model/182978 "2024-06-01T23:32:30Z")

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Hi. I have been trying to apply voronoi to my subd structure. ı gives error " boolean instersection is empty. Could you help me understand what is the problem and how can ı fix it. subdvoronoi.gh (1.3 MB) ı have bee…

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## [Best method to predicting meshing issues?](https://discourse.mcneel.com/t/best-method-to-predicting-meshing-issues/183027)

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**Author:** [@ed.p.may](https://discourse.mcneel.com/u/ed.p.may)\
**Replies:** 1\
**Last updated:** [May 29, 2024, 8:38pm UTC](https://discourse.mcneel.com/t/best-method-to-predicting-meshing-issues/183027 "2024-05-29T20:38:32Z")

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Hi, I wonder if anyone can suggest the ‘best practice’ for predicting mesh-issues ahead of time (issue=extra faces). For instance, If I have two closed polysurfaces: to my eye they are the same. If I look at the co…

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## [Creating a Shelled Body from Complex Closed Polysurface](https://discourse.mcneel.com/t/creating-a-shelled-body-from-complex-closed-polysurface/179235)

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**Author:** [@Ryan\_Alan\_Britain](https://discourse.mcneel.com/u/Ryan_Alan_Britain)\
**Replies:** 1\
**Last updated:** [April 2, 2024, 9:01pm UTC](https://discourse.mcneel.com/t/creating-a-shelled-body-from-complex-closed-polysurface/179235 "2024-04-02T21:01:56Z")

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Hi All, I have a closed polysurface which is rather complex. I would like to remove the top two faces (shown in pink) and shell the rest of the body with a thickness of approximately 1/4"-1/2". Annotated Image Closed …

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## [How to round a polysurface into a curved shape?](https://discourse.mcneel.com/t/how-to-round-a-polysurface-into-a-curved-shape/178823)

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**Author:** [@timob2567](https://discourse.mcneel.com/u/timob2567)\
**Replies:** 4\
**Last updated:** [March 27, 2024, 1:13pm UTC](https://discourse.mcneel.com/t/how-to-round-a-polysurface-into-a-curved-shape/178823 "2024-03-27T13:13:54Z")

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how to round a polysurface into a curved shape ? I tried to use “bend” and “transform along a curve” but you still didn’t understand, I still don’t understand what I’m doing wrong?? palka.3dm (711.4 KB)

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## [Polysurfaces not visible unless selected, but show up in renderings](https://discourse.mcneel.com/t/polysurfaces-not-visible-unless-selected-but-show-up-in-renderings/175255)

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**Author:** [@memo\_b](https://discourse.mcneel.com/u/memo_b)\
**Replies:** 4\
**Last updated:** [March 14, 2024, 12:14am UTC](https://discourse.mcneel.com/t/polysurfaces-not-visible-unless-selected-but-show-up-in-renderings/175255 "2024-03-14T00:14:48Z")

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I used grasshopper and the ELK plugin to create “building” objects from a OpenStreetMap points file. The Elk plugin has a function in grasshopper to make polysurfaces. When baked into the Rhino Layer, those polysurfaces…

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## [Texture not showing on the correct face](https://discourse.mcneel.com/t/texture-not-showing-on-the-correct-face/177794)

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**Author:** [@Chirag\_Ahluwalia](https://discourse.mcneel.com/u/Chirag_Ahluwalia)\
**Replies:** 2\
**Last updated:** [March 13, 2024, 12:58pm UTC](https://discourse.mcneel.com/t/texture-not-showing-on-the-correct-face/177794 "2024-03-13T12:58:17Z")

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Hi, So I’m using R7 and trying to render my model by adding custom textures using enscape. While the discrepancies in the mapping translated very poorly from rhino to enscape, the main issue here is that the textures I’…

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## [Making continuous surface with sharp corner](https://discourse.mcneel.com/t/making-continuous-surface-with-sharp-corner/177448)

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**Author:** [@Gears\_Gears](https://discourse.mcneel.com/u/Gears_Gears)\
**Replies:** 6\
**Last updated:** [March 7, 2024, 9:36pm UTC](https://discourse.mcneel.com/t/making-continuous-surface-with-sharp-corner/177448 "2024-03-07T21:36:37Z")

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Hi community, I’m trying to make this shield-like surface that’s G2 continuous throughout. The problem is, the ‘usual’ nose-cone trick to trim back doesn’t work here, because the edges are not G1 across the mirroring l…

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## [Need help, polysurfaces unable to join](https://discourse.mcneel.com/t/need-help-polysurfaces-unable-to-join/173451)

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**Author:** [@Isaac\_Lo](https://discourse.mcneel.com/u/Isaac_Lo)\
**Replies:** 3\
**Last updated:** [January 17, 2024, 6:05am UTC](https://discourse.mcneel.com/t/need-help-polysurfaces-unable-to-join/173451 "2024-01-17T06:05:20Z")

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Hi I’m relatively new to Rhino and am having a problem joining 2 polysurfaces as seen in the image below. I’m trying to make a hinge for a clamp structure i’m building, but I’m unable to join the hinge components to the …

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## [Loft curves to create a single surface](https://discourse.mcneel.com/t/loft-curves-to-create-a-single-surface/171255)

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**Author:** [@pandorum.arch](https://discourse.mcneel.com/u/pandorum.arch)\
**Replies:** 1\
**Last updated:** [December 11, 2023, 10:28pm UTC](https://discourse.mcneel.com/t/loft-curves-to-create-a-single-surface/171255 "2023-12-11T22:28:36Z")

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Hello everyone and thanks in advance! My intend here is to create a single surface after lofting rather than getting a polysurface/brep. Any ideas?

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## [I am missing something basic about surfaces I think (heightmaps?)](https://discourse.mcneel.com/t/i-am-missing-something-basic-about-surfaces-i-think-heightmaps/171068)

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**Author:** [@Bill\_Pennington1](https://discourse.mcneel.com/u/Bill_Pennington1)\
**Replies:** 3\
**Last updated:** [December 8, 2023, 6:45pm UTC](https://discourse.mcneel.com/t/i-am-missing-something-basic-about-surfaces-i-think-heightmaps/171068 "2023-12-08T18:45:29Z")

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I am pretty new to Rhino and coming from Fusion 360, where I mostly used the solid tools. Currently using Rhino 8 for Windows. I am attempting to make more detailed fishing lures (adding scales/patterns). I have gone do…

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## [Closed Solid Polysurface -\> A sheet using OpenNest](https://discourse.mcneel.com/t/closed-solid-polysurface-a-sheet-using-opennest/169413)

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**Author:** [@Gavin\_McLean](https://discourse.mcneel.com/u/Gavin_McLean)\
**Replies:** 6\
**Last updated:** [November 20, 2023, 9:52pm UTC](https://discourse.mcneel.com/t/closed-solid-polysurface-a-sheet-using-opennest/169413 "2023-11-20T21:52:11Z")

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ForForum.gh (14.1 KB) I am currently using this workflow I have created to quickly make tessellated site models using topography from site surveys for my firm. CAD topo lines → SketchUp → Rhino7. When imported the Ske…

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