Hi, I’m attempting to assign materials directly to brepFaces. I can’t find any methods that fit, and feel like I’ve looked everywhere: the object, the face, and everything in between. Is it simply not possible without exploding it into a polymesh, and assigning on a per-object basis? Best, Aske

RH-57389 is fixed in the latest Service Release Candidate

Hi @aske , There is certainly a way of doing this in C++: cmdSamplePerFaceMaterial.cpp Thus far, I haven’t found a way of doing this in RhinoCommon. @nathanletwory is this something you know about? – Dale

Thanks for the reply! As far as I can read the C++ sample, you add a channel to the material, then select that channel on the brepFace. In C# there is nothing called anything with material or channel on brepfaces that I can see. I also can’t see channels being present on materials but maybe I’m loo…

Hi @aske , I’ve logged this issue. Hopefully we can get something added. https://mcneel.myjetbrains.com/youtrack/issue/RH-57389 – Dale

Hey @Jussi_Aaltonen Can I hope for this to be looked at, or is it not a priority so I should explore alternatives? Best, Aske

Hi @aske , there aren’t any alternatives that I can think of. So we’ll try to get it done.

Thanks for the update! I won’t start messing with PInvoke then :slight_smile:

Hi @aske , I’ve added sample code for setting brep face materials: Added SampleCsSetBrepFaceMaterial, a C# sample for setting brep face materials committed 12:21PM - 27 Jul 20 UTC (UTC) [jussiaaltonen] …

Thanks Jussi! These kind of examples are super valuable so us users don’t have to go asking on the forums all the time! Keep it up! :tada:

Hi @Jussi_Aaltonen , I am trying to do something similar but instead of using ActiveDoc.Materials, I am using Render.RenderMaterials as I wish to use materials that have not been added to objects yet but are still available in the library. any solutions to apply RenderMaterial to a brepFace instead…

As far as I know you need to add the material to the document before you can use it as brep face material. I’m trying to find someone with more insight to this.

Assign material to brepfaces

Rhino Developer

svichare (Srujan Vichare) October 14, 2024, 2:46am 15

I made another topic here to continue the conversation. Thanks again

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Assign material to brepfaces

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