In rhino we can set material to every face of the Brep easily,but how to do this by api?

BrepFace.PerFaceColor Property If per-face color is "Empty", then this face does not have a custom color

I want to set material not a color

Oops, sorry. I don’t know how to do that

Hi @duzhengjie1 , Just set BrepFace.MaterialChannelIndex with the rendering material channel index of your choice. protected override Result RunCommand(RhinoDoc doc, RunMode mode) { var rc = RhinoGet.GetOneObject("Select Brep", false, ObjectType.Brep, out var objref); if (rc != Result.Success |…

Ok,thanks very much!I have did it.

Hi @dale , Is there a way to apply a rendermaterial from ActiveDoc.RenderMaterials to a brepFace using c# in Rhino8? ObjRef objRef = gs.Object(i); // Get each selected object RhinoObject rhinoObj = objRef.Object(); // Get the RhinoObject // Apply the material or perform operations on the rhinoObj …

Hi @svichare , Does assigning per-face materials using indices acquired from the RhinoDoc.Materials table not work? – Dale

Hi Dale, Thanks for getting back. I have made a new topic of what I am trying to achieve here. [image] How to apply materials to individual brep faces Rhino Developer I am looking to assign materials to individual brep faces using rhinocommon. The idea is to achieve a P…

@svichare - does the sample code I posted above work for you? – Dale

No it does not. I tried doing the sample code with blue/red material and use the redChannelIndex but it didnt work for me yet. I am using Rhino 8

How to set material to the face of the Brep by api?

Scripting

svichare (Srujan Vichare) October 16, 2024, 12:00am 9

Hi Dale,
Thanks for getting back.
I have made a new topic of what I am trying to achieve here.

In a nutshell, I am trying to apply a material to subelement using MateialChannelIndex as suggested by you and Jussi Aaltonen in other topics but it still unsuccessful.
I have provided an example of my code in the linked topic.

Cheers
Srujan

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How to set material to the face of the Brep by api?

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