# \#instance

**URL:** https://discourse.mcneel.com/tag/instance/742.md

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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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## [Display bug with locked/unlocked block instances](https://discourse.mcneel.com/t/display-bug-with-locked-unlocked-block-instances/195924)

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**Author:** [@Measure](https://discourse.mcneel.com/u/Measure)\
**Replies:** 6\
**Last updated:** [December 3, 2024, 8:48pm UTC](https://discourse.mcneel.com/t/display-bug-with-locked-unlocked-block-instances/195924 "2024-12-03T20:48:18Z")

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Ran into this display bug where locking/unlocking one block instance changes the display of other instances of the same block. The affected blocks can still be selected since they’re unlocked, but they display gray as t…

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## [Rhino 8 Grasshopper display and bake unexpected attribute of block](https://discourse.mcneel.com/t/rhino-8-grasshopper-display-and-bake-unexpected-attribute-of-block/182820)

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**Author:** [@weekenlwk](https://discourse.mcneel.com/u/weekenlwk)\
**Replies:** 0\
**Last updated:** [May 27, 2024, 4:54am UTC](https://discourse.mcneel.com/t/rhino-8-grasshopper-display-and-bake-unexpected-attribute-of-block/182820 "2024-05-27T04:54:29Z")

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Retested the previous issue in the latest Rhino RC 8.8, and the issues of #1, #2, and #3 still remain. Please see the details and steps for re-creations as following: #1 display of unexpected attributes #2 can not…

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## [Block parents, block instances](https://discourse.mcneel.com/t/block-parents-block-instances/164219)

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**Author:** [@Czaja](https://discourse.mcneel.com/u/Czaja)\
**Replies:** 3\
**Last updated:** [August 23, 2023, 3:24pm UTC](https://discourse.mcneel.com/t/block-parents-block-instances/164219 "2023-08-23T15:24:56Z")

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Is it possible to have a block with two or more geometries that will have different display colors in each instance? With the “By Parent” method I can only make both of the geometries inside the block have the same color…

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## [How to get hidden instance references with c#](https://discourse.mcneel.com/t/how-to-get-hidden-instance-references-with-c/162414)

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**Author:** [@remy.pere](https://discourse.mcneel.com/u/remy.pere)\
**Replies:** 2\
**Last updated:** [July 6, 2023, 11:56am UTC](https://discourse.mcneel.com/t/how-to-get-hidden-instance-references-with-c/162414 "2023-07-06T11:56:21Z")

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Hello, Dynamic Geometry Pipeline from Human and Reference By Type from elefront are powerfull tools for blocks management. Despite its incredible efficiency the first runs each time you make a modification, and the othe…

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## [R8 - Modify Element User Text On A Per Instance Basis W/ Dynamic Baking](https://discourse.mcneel.com/t/r8-modify-element-user-text-on-a-per-instance-basis-w-dynamic-baking/159730)

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**Author:** [@michaelvollrath](https://discourse.mcneel.com/u/michaelvollrath)\
**Replies:** 2\
**Last updated:** [May 12, 2023, 8:47pm UTC](https://discourse.mcneel.com/t/r8-modify-element-user-text-on-a-per-instance-basis-w-dynamic-baking/159730 "2023-05-12T20:47:55Z")

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Hello, I’ve created a cluster that allows me to populate model objects with default element user text keys & values while also allowing the user to override these parameters at a per instance basis and therefore works w…

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## [Reading instanced geometry](https://discourse.mcneel.com/t/reading-instanced-geometry/78789)

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**Author:** [@nathaniel](https://discourse.mcneel.com/u/nathaniel)\
**Replies:** 6\
**Last updated:** [April 21, 2023, 7:53am UTC](https://discourse.mcneel.com/t/reading-instanced-geometry/78789 "2023-04-21T07:53:58Z")

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Hello, I have just started using OpenNURBS to read 3dm models into my (C++) application. Naturally, getting started with a new library takes some time, but I am currently trying to figure out how to properly read the in…

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## [Finding the normal vector / boundary curve of a Revit window instance](https://discourse.mcneel.com/t/finding-the-normal-vector-boundary-curve-of-a-revit-window-instance/147299)

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**Author:** [@rshanish](https://discourse.mcneel.com/u/rshanish)\
**Replies:** 1\
**Last updated:** [September 2, 2022, 2:06pm UTC](https://discourse.mcneel.com/t/finding-the-normal-vector-boundary-curve-of-a-revit-window-instance/147299 "2022-09-02T14:06:42Z")

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Hi everyone, I’ll just describe what I’m experiencing for now and upload some scripts later to show progress. I’m trying to use Rhino.Inside to create a parametric window element, for which I’ll need the ‘opening curve…

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## [Regarding the instance reference and instance definition](https://discourse.mcneel.com/t/regarding-the-instance-reference-and-instance-definition/114220)

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**Author:** [@psomesh94](https://discourse.mcneel.com/u/psomesh94)\
**Replies:** 2\
**Last updated:** [December 11, 2020, 8:38am UTC](https://discourse.mcneel.com/t/regarding-the-instance-reference-and-instance-definition/114220 "2020-12-11T08:38:54Z")

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Hello @dale. I have a query regarding the Instance definition, Instance reference and blocks. I want to create once block (name - block 01) in Rhino (like solid cylinder). Now two different blocks (name - block 02 and …

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## [Regarding the instance reference and instance definition](https://discourse.mcneel.com/t/regarding-the-instance-reference-and-instance-definition/114211)

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**Author:** [@psomesh94](https://discourse.mcneel.com/u/psomesh94)\
**Replies:** 3\
**Last updated:** [December 11, 2020, 4:16am UTC](https://discourse.mcneel.com/t/regarding-the-instance-reference-and-instance-definition/114211 "2020-12-11T04:16:05Z")

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Hello @dale, I have one query regarding the instance definition and instance reference. I want to create block once (name - block 01) in Rhino (like solid cylinder). Now two different blocks (name - block 02 and block …

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## [To traverse the instance definition to get geometry only once](https://discourse.mcneel.com/t/to-traverse-the-instance-definition-to-get-geometry-only-once/113823)

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**Author:** [@psomesh94](https://discourse.mcneel.com/u/psomesh94)\
**Replies:** 3\
**Last updated:** [December 7, 2020, 11:27pm UTC](https://discourse.mcneel.com/t/to-traverse-the-instance-definition-to-get-geometry-only-once/113823 "2020-12-07T23:27:15Z")

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Hello guys, I want to export Rhino model to Parasolid. While traversing Rhino model I am getting instance reference object. I have added code to iterate instance definition block to get geometry for instance reference…

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## [Create Family Instance By Geometry possible?](https://discourse.mcneel.com/t/create-family-instance-by-geometry-possible/88925)

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**Author:** [@twh.works](https://discourse.mcneel.com/u/twh.works)\
**Replies:** 10\
**Last updated:** [October 2, 2019, 10:59am UTC](https://discourse.mcneel.com/t/create-family-instance-by-geometry-possible/88925 "2019-10-02T10:59:51Z")

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Hey, Wondering if anyone has had success creating family instances by geomertry? Trying to achieve something similar to SpringNodes FamilyInstance.ByGeometry (Dynamo). Inputs: Geometry, Family Template, Family Name, C…

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## [Rhino instance/ram limit?](https://discourse.mcneel.com/t/rhino-instance-ram-limit/58900)

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**Author:** [@carvecream](https://discourse.mcneel.com/u/carvecream)\
**Replies:** 1\
**Last updated:** [March 25, 2018, 12:26am UTC](https://discourse.mcneel.com/t/rhino-instance-ram-limit/58900 "2018-03-25T00:26:26Z")

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Hi all, I’m wondering if there is an instance limit, or RAM usage limit I might have just come across. I am running manual batch operations on 10-20 files at a time (the files have big meshes, 500-700MB each, so I’ve fou…