# \#import

**URL:** https://discourse.mcneel.com/tag/import/235.md

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## [Rhino C# Script: Import objects from selected layers of a 3dm file](https://discourse.mcneel.com/t/rhino-c-script-import-objects-from-selected-layers-of-a-3dm-file/223741)

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**Author:** [@Marco\_Traverso](https://discourse.mcneel.com/u/Marco_Traverso)\
**Replies:** 0\
**Last updated:** [October 19, 2026, 6:18pm UTC](https://discourse.mcneel.com/t/rhino-c-script-import-objects-from-selected-layers-of-a-3dm-file/223741 "2026-10-19T18:18:07Z")

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I’d like to share a small C# script that appends objects from a .3dm file into the current Rhino document, letting you choose which layers to import from a dialog. This lets you import only what you need, instead of …

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## [How to use MTL that was not imported with OBJ](https://discourse.mcneel.com/t/how-to-use-mtl-that-was-not-imported-with-obj/150297)

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**Author:** [@Ludo\_Poot](https://discourse.mcneel.com/u/Ludo_Poot)\
**Replies:** 6\
**Last updated:** [September 28, 2026, 5:33pm UTC](https://discourse.mcneel.com/t/how-to-use-mtl-that-was-not-imported-with-obj/150297 "2026-09-28T17:33:45Z")

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Rhino does not import MTL file when importing the OBJ file. After importing the OBJ (import setting group and import MTL enabled) a few simple materials are generated only containing colors (not related with the texture…

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## [E57 Point Cloud Import Without Normals](https://discourse.mcneel.com/t/e57-point-cloud-import-without-normals/222511)

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**Author:** [@Domenic\_Gallo](https://discourse.mcneel.com/u/Domenic_Gallo)\
**Replies:** 3\
**Last updated:** [September 8, 2026, 10:46pm UTC](https://discourse.mcneel.com/t/e57-point-cloud-import-without-normals/222511 "2026-09-08T22:46:24Z")

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Importing a point cloud from an E57 does not bring in normals. Verified the file in question contains normals in CloudCompare. Converted the same file into PLY and imported into Rhino with normals just fine. ▶ System Inf…

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## [Can i edit vray assets in rhino?](https://discourse.mcneel.com/t/can-i-edit-vray-assets-in-rhino/220026)

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**Author:** [@su14](https://discourse.mcneel.com/u/su14)\
**Replies:** 2\
**Last updated:** [August 26, 2026, 12:25pm UTC](https://discourse.mcneel.com/t/can-i-edit-vray-assets-in-rhino/220026 "2026-08-26T12:25:48Z")

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so that i can change color, size, add or sub and more etc.. before why is not plane, why extra line, and how to solve that.

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## [How to solve unwanted lines in skp imported files](https://discourse.mcneel.com/t/how-to-solve-unwanted-lines-in-skp-imported-files/220025)

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**Author:** [@su14](https://discourse.mcneel.com/u/su14)\
**Replies:** 8\
**Last updated:** [June 17, 2026, 1:55pm UTC](https://discourse.mcneel.com/t/how-to-solve-unwanted-lines-in-skp-imported-files/220025 "2026-06-17T13:55:24Z")

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## [STEP import not working](https://discourse.mcneel.com/t/step-import-not-working/217856)

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**Author:** [@Matt\_Thornton](https://discourse.mcneel.com/u/Matt_Thornton)\
**Replies:** 3\
**Last updated:** [April 10, 2026, 8:15pm UTC](https://discourse.mcneel.com/t/step-import-not-working/217856 "2026-04-10T20:15:47Z")

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I am having issues when trying to import .step files into rhino 9. I am getting dialog that says Blocking plug-in STEP import Files work fine in Rhino 8

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## [UV Mapping (or whole texturing) gets lost by 2nd fbx import](https://discourse.mcneel.com/t/uv-mapping-or-whole-texturing-gets-lost-by-2nd-fbx-import/216535)

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**Author:** [@arquitextonica](https://discourse.mcneel.com/u/arquitextonica)\
**Replies:** 4\
**Last updated:** [March 11, 2026, 5:23pm UTC](https://discourse.mcneel.com/t/uv-mapping-or-whole-texturing-gets-lost-by-2nd-fbx-import/216535 "2026-03-11T17:23:38Z")

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Hi all! I am not a texturing expert, so very lost with this problem. I imported a fbx I got from a 3d scan, and everything was perfect as expected. The thing is that when I imported the next room (another fbx) in t…

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## [Encoding bug on dgn import](https://discourse.mcneel.com/t/encoding-bug-on-dgn-import/216194)

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**Author:** [@davouch](https://discourse.mcneel.com/u/davouch)\
**Replies:** 0\
**Last updated:** [February 21, 2026, 10:52am UTC](https://discourse.mcneel.com/t/encoding-bug-on-dgn-import/216194 "2026-02-21T10:52:10Z")

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Hi, I am running into a specific text encoding bug when importing DGN files containing Central European (Czech) characters into Rhino 8 (also tested and present in Rhino 7). The issue affects both Layer Names and Geomet…

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## [Error Importing IFC](https://discourse.mcneel.com/t/error-importing-ifc/119380)

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**Author:** [@RdK](https://discourse.mcneel.com/u/RdK)\
**Replies:** 12\
**Last updated:** [February 16, 2026, 11:06am UTC](https://discourse.mcneel.com/t/error-importing-ifc/119380 "2026-02-16T11:06:08Z")

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Hi everyone, I’m unable to import an IFC file in Rhino 7, while the same file opens without any errors in Rhino 6 (image below). The IFC importer in plugin manager is loaded and enabled. Any clues? Thanks in advance! …

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## [Importing/Opening .glb fails silently on Mac](https://discourse.mcneel.com/t/importing-opening-glb-fails-silently-on-mac/213948)

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**Author:** [@SherifTarabishy](https://discourse.mcneel.com/u/SherifTarabishy)\
**Replies:** 1\
**Last updated:** [December 24, 2025, 7:14am UTC](https://discourse.mcneel.com/t/importing-opening-glb-fails-silently-on-mac/213948 "2025-12-24T07:14:43Z")

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Importing the below .glb or trying to open it in Rhino fails silently. test\_webp.glb (4.0 MB) Looking at the extensions used, it has EXT\_texture\_webp. For testing that this is the issue, repackaging it here https://gl…

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## [Issue importing into revit](https://discourse.mcneel.com/t/issue-importing-into-revit/213144)

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**Author:** [@Erik\_Osorio](https://discourse.mcneel.com/u/Erik_Osorio)\
**Replies:** 1\
**Last updated:** [December 3, 2025, 3:18am UTC](https://discourse.mcneel.com/t/issue-importing-into-revit/213144 "2025-12-03T03:18:29Z")

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When importing the attached file into revit the model divides into two elements one with the correct scale and the other way out of scale. I will attach an image of how the model looks when imported into revit, idk if th…

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## [How to "open" DGN files in headless rhino doc](https://discourse.mcneel.com/t/how-to-open-dgn-files-in-headless-rhino-doc/211857)

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**Author:** [@Jedd\_Morgan](https://discourse.mcneel.com/u/Jedd_Morgan)\
**Replies:** 4\
**Last updated:** [November 7, 2025, 12:03pm UTC](https://discourse.mcneel.com/t/how-to-open-dgn-files-in-headless-rhino-doc/211857 "2025-11-07T12:03:18Z")

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Hi all, I’m writing a program to consume DGN files in a headless Rhino environment (using Rhino.Inside), and I’ve run into a few limitations. Specifically, I want to open a DGN file in a headless document while preser…

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## [Rhino 8 Mac Import Layer States confusion](https://discourse.mcneel.com/t/rhino-8-mac-import-layer-states-confusion/209037)

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**Author:** [@coffsoft](https://discourse.mcneel.com/u/coffsoft)\
**Replies:** 12\
**Last updated:** [October 22, 2025, 6:55pm UTC](https://discourse.mcneel.com/t/rhino-8-mac-import-layer-states-confusion/209037 "2025-10-22T18:55:00Z")

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Hello, I have a model with 2 buildings. Building B started as a mirror image of building A, but has numerous changes to suit the topography. There are hundreds of layers involved. The layer sets have identical names, wi…

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## [RhinoCommon API C#: How to import block instances](https://discourse.mcneel.com/t/rhinocommon-api-c-how-to-import-block-instances/208012)

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**Author:** [@Stepan\_Radchenko](https://discourse.mcneel.com/u/Stepan_Radchenko)\
**Replies:** 5\
**Last updated:** [October 7, 2025, 1:49pm UTC](https://discourse.mcneel.com/t/rhinocommon-api-c-how-to-import-block-instances/208012 "2025-10-07T13:49:23Z")

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Hi, Can you please tell me how to import block instances correctly? My task is to load a .3dm model into a RhinoDoc, but before adding the geometry, I need to modify some of the input data (like materials and transform…

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## [Slow .stl import](https://discourse.mcneel.com/t/slow-stl-import/210318)

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**Author:** [@maje90](https://discourse.mcneel.com/u/maje90)\
**Replies:** 13\
**Last updated:** [October 7, 2025, 8:25am UTC](https://discourse.mcneel.com/t/slow-stl-import/210318 "2025-10-07T08:25:44Z")

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Hi all! A 50MB .stl file require 4-5 seconds in my Rhino 7/8 and it’s about a second faster in Rhino WIP. The same .stl opens instantly with a simple viewer like “Papa’s best STL viewer” … INSTANTLY. I guess the “prob…

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## [Import Obj with \`FileObjReadOptions\` with no \`.ToDictionary\`](https://discourse.mcneel.com/t/import-obj-with-fileobjreadoptions-with-no-todictionary/209040)

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**Author:** [@Jedd\_Morgan](https://discourse.mcneel.com/u/Jedd_Morgan)\
**Replies:** 2\
**Last updated:** [August 28, 2025, 1:13pm UTC](https://discourse.mcneel.com/t/import-obj-with-fileobjreadoptions-with-no-todictionary/209040 "2025-08-28T13:13:49Z")

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Hi, it’s me again :sweat\_smile: I’m looking for some documentation for how to use the FileObjReadOptions class from Rhino.FileIO import a obj file into a headless doc (from C#). For pretty much all other file types (sk…

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## [Missing parts in STEP import in Rhino 8 - UR10e Robot Model](https://discourse.mcneel.com/t/missing-parts-in-step-import-in-rhino-8-ur10e-robot-model/208696)

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**Author:** [@yck011522](https://discourse.mcneel.com/u/yck011522)\
**Replies:** 2\
**Last updated:** [August 21, 2025, 1:27am UTC](https://discourse.mcneel.com/t/missing-parts-in-step-import-in-rhino-8-ur10e-robot-model/208696 "2025-08-21T01:27:46Z")

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Dear developers, I just discovered an interesting bug when I tried to import the official model of UR10 robot. It is downloaded from here Universal Robots - Robot Step file - UR10e/UR12e - e-Series (You need a free acco…

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## [Headless document throw popup error and stops](https://discourse.mcneel.com/t/headless-document-throw-popup-error-and-stops/208080)

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**Author:** [@maje90](https://discourse.mcneel.com/u/maje90)\
**Replies:** 7\
**Last updated:** [August 8, 2025, 3:53pm UTC](https://discourse.mcneel.com/t/headless-document-throw-popup-error-and-stops/208080 "2025-08-08T15:53:54Z")

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I’ve got an .stl file which might be not valid. A code like: Rhino.RhinoDoc tempdoc = Rhino.RhinoDoc.CreateHeadless(null); tempdoc.Import("C:\\Users\\maje\\Desktop\\test.stl"); throws me an error like: There is a way …

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## [Help.. Distorted shape file, imported through Urbano](https://discourse.mcneel.com/t/help-distorted-shape-file-imported-through-urbano/115809)

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**Author:** [@kyle090471](https://discourse.mcneel.com/u/kyle090471)\
**Replies:** 7\
**Last updated:** [August 5, 2025, 12:51am UTC](https://discourse.mcneel.com/t/help-distorted-shape-file-imported-through-urbano/115809 "2025-08-05T00:51:59Z")

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Urbano\_shp\_0105 1.gh (10.8 KB) Hi, I was trying to import the shapefile of the city of Rome from Arcgis to Rhino through a grasshopper plug-in, Urbano. However, it was heavily distorted (mainly on east-west direction). …

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## [Rhino 8 - 3d model import not working properly](https://discourse.mcneel.com/t/rhino-8-3d-model-import-not-working-properly/177061)

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**Author:** [@Chris\_Craine](https://discourse.mcneel.com/u/Chris_Craine)\
**Replies:** 14\
**Last updated:** [July 4, 2025, 7:19pm UTC](https://discourse.mcneel.com/t/rhino-8-3d-model-import-not-working-properly/177061 "2025-07-04T19:19:25Z")

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Hello, I am continuously having the same issue and can’t seem to figure out the cause, because I never had the issue in any previous versions of Rhino. I download a free model (usually from Adobe Substance 3d assets), …

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## [Is It Possible to Preserve 1-Bit Bitmaps? (Import/Export)](https://discourse.mcneel.com/t/is-it-possible-to-preserve-1-bit-bitmaps-import-export/205459)

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**Author:** [@Pipouille](https://discourse.mcneel.com/u/Pipouille)\
**Replies:** 2\
**Last updated:** [June 30, 2025, 12:50pm UTC](https://discourse.mcneel.com/t/is-it-possible-to-preserve-1-bit-bitmaps-import-export/205459 "2025-06-30T12:50:21Z")

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Hi, I’m looking to import 1-bit bitmap images into Rhino and export them without any loss, meaning preserving the strict 1-bit black and white format — no grayscale or anti-aliasing. This is important in fields like of…

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## [GLB Import unsuccessful](https://discourse.mcneel.com/t/glb-import-unsuccessful/190959)

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**Author:** [@Louis9](https://discourse.mcneel.com/u/Louis9)\
**Replies:** 9\
**Last updated:** [May 30, 2025, 10:09am UTC](https://discourse.mcneel.com/t/glb-import-unsuccessful/190959 "2025-05-30T10:09:44Z")

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Hi, I recently purchased a large 3D model of my local area with aerial imagery as the texture. The file consisted of numerous folders and within each folder were loads of GLB format files. I assume each of these GLB file…

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## [Import BUG: OBJ to current layer, PLY to Default layer](https://discourse.mcneel.com/t/import-bug-obj-to-current-layer-ply-to-default-layer/201630)

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**Author:** [@davidcockey](https://discourse.mcneel.com/u/davidcockey)\
**Replies:** 6\
**Last updated:** [April 8, 2025, 10:38pm UTC](https://discourse.mcneel.com/t/import-bug-obj-to-current-layer-ply-to-default-layer/201630 "2025-04-08T22:38:37Z")

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Import a OBJ object and it goes to the current layer. Import a PLY object and it goes to the Default layer. If Default layer does not exist it is created. The destination should be consistent, and the current layer is …

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## [FBX not coming in with materials?](https://discourse.mcneel.com/t/fbx-not-coming-in-with-materials/202969)

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**Author:** [@andreaw](https://discourse.mcneel.com/u/andreaw)\
**Replies:** 4\
**Last updated:** [April 13, 2025, 9:58pm UTC](https://discourse.mcneel.com/t/fbx-not-coming-in-with-materials/202969 "2025-04-13T21:58:33Z")

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The FBX has materials assigned in Maya as “Standard Surface” type. Here’s how I import them in Rhino: old\_sofa\_4.fbx (13.1 MB) old\_sofa.mtl (189 Bytes) old\_sofa.obj (159.6 KB) For some reason, they on…

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## [FBX files \>100MB not importing into Rhino 8](https://discourse.mcneel.com/t/fbx-files-100mb-not-importing-into-rhino-8/179797)

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**Author:** [@DrZankuu](https://discourse.mcneel.com/u/DrZankuu)\
**Replies:** 6\
**Last updated:** [April 3, 2025, 2:51am UTC](https://discourse.mcneel.com/t/fbx-files-100mb-not-importing-into-rhino-8/179797 "2025-04-03T02:51:20Z")

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Hello. First time poster, long time Rhino user, so apologies if I’m not posting this correctly: Short description FBX files that take ~20 mins to import into Rhino 7 are causing Rhino 8 to freeze for 24+ hrs. Longer De…

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## [3dm into revit](https://discourse.mcneel.com/t/3dm-into-revit/202344)

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**Author:** [@Brandt\_Foerster](https://discourse.mcneel.com/u/Brandt_Foerster)\
**Replies:** 1\
**Last updated:** [March 31, 2025, 2:32pm UTC](https://discourse.mcneel.com/t/3dm-into-revit/202344 "2025-03-31T14:32:03Z")

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Hello everyone. I am trying to import a 3dm of a roof I made into revit as a family, but when I do this using RIR, I get an error. I am running Rhino Version 8 SR17 Revit version 2025.4 Error: Must be addressed in o…

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## [Rhino8 not Reading Annotations from DWG](https://discourse.mcneel.com/t/rhino8-not-reading-annotations-from-dwg/201696)

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**Author:** [@James40](https://discourse.mcneel.com/u/James40)\
**Replies:** 5\
**Last updated:** [March 24, 2025, 12:45pm UTC](https://discourse.mcneel.com/t/rhino8-not-reading-annotations-from-dwg/201696 "2025-03-24T12:45:04Z")

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I make what I call part files. I model assemblies in rhino, then I pull out each individual part from the model and save them as 2d .dwg files. I do this because I need to get each part machined on a 3-axis router from a…

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## [Importing block from dwg doesn’t import Usertext since Version 8.15](https://discourse.mcneel.com/t/importing-block-from-dwg-doesn-t-import-usertext-since-version-8-15/198677)

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**Author:** [@peter.zock](https://discourse.mcneel.com/u/peter.zock)\
**Replies:** 4\
**Last updated:** [February 12, 2025, 10:43pm UTC](https://discourse.mcneel.com/t/importing-block-from-dwg-doesn-t-import-usertext-since-version-8-15/198677 "2025-02-12T22:43:36Z")

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Dear all, I have been noticed a difference between version Rhino 8.8 and Version 8.15 when it comes to import blockinstances from a dwg-file. When my college imports a blockinstance with UserText on the BlockInstance fr…

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## [Sketchup do Rhino import with Sections?](https://discourse.mcneel.com/t/sketchup-do-rhino-import-with-sections/200436)

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**Author:** [@Gustavo\_Soares\_Silva](https://discourse.mcneel.com/u/Gustavo_Soares_Silva)\
**Replies:** 0\
**Last updated:** [February 27, 2025, 1:10pm UTC](https://discourse.mcneel.com/t/sketchup-do-rhino-import-with-sections/200436 "2025-02-27T13:10:46Z")

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hello, i received a SketchUp file with some sections. When I exported to Rhino the sections didn’t appeared at all. Is there anyway to import those sections on Rhino. For you what is the best import settings from Skp to …

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## [STEP Import and surface management](https://discourse.mcneel.com/t/step-import-and-surface-management/199824)

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**Author:** [@Piet1](https://discourse.mcneel.com/u/Piet1)\
**Replies:** 9\
**Last updated:** [February 19, 2025, 2:13pm UTC](https://discourse.mcneel.com/t/step-import-and-surface-management/199824 "2025-02-19T14:13:57Z")

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Hello everyone! I’m pretty newbie with the software and probably this sounds pretty banal for some of you. Here I’m trying to understand how I can import a step file and building a pattern onto some of its surfaces. I …

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