Can Rhino export the sub-surface material information somehow?

[Gustavo_Soares_Silva]

@brian

Well, now let’s get hyper specific. What, exactly, do you want to export, and to what file format or program? Do you have an example model, and also an example of what you want it to look like in the target program?

I have.
SubObjectTextures.3dm (1.9 MB)
If you export it as OBJ, SKP, UDATASMITH, COLLADA, FBX, any of them the result will be the same. When openning those file extensions on other softwares or rhino every object that has more than one material aplied to it’s surfaces (sub-objects) become an one material object.
Try this file, importing for those extensions and comparing rhino and the export file imported side by side.

Take a look at those posts too:

Objects with more than one material not working. Help?

Hello. I have modeled an entire Architectural 3D model and when I exported it to Twinmotion (by direct link) I chosen “Collapse By Material” on the Collapse section. Since I have separated all the material on the Rhino Model it will save me time when configuring the materials, so I think it’s the best workflow for me. [image] Here is my Rhino model, but when i collapse it by material into twinmotion, the objects that have multiple materials becomes only one object with one material. See the e…

Rhino can't understand its own texture system?

Thank you very much. I don’t think this could have been explained any better, you’re the best. Will test these at night. This Bake before ExtractRenderMesh is new to me That was what I’m doing.The problem I was pointing is: I applied the different materials on sub-objects, and when ExtractRenderMesh the materials become only one. Thats what I wanted to tell with the “Rhino can’t understand the texture converting from NURBs to mesh either”. By this time I didn’t knew the Bake usage. Tested it a…

Export to blender

If it helps, i found this plugin: https://superhivemarket.com/products/drag-n-drop-import Currently i’m having a problem with the addon. The same i was having with rhino to twinmotion workflow: The problem is for other programs to understand rhino objects with more than one texture assigned. When in this situation, the other programs undestand only one texture. Heres what I have in Rhino: [image] Here’s what I got in Blender via 3dm importer addon: [image] And in the material preview an…

As you can see, I’m really struggling with this issue. I’ve always used per-face texturing in Rhino, and now that I need to render a model and export it to the company I work for, I’m facing problems—what I model is not what they receive in terms of texturing. I would be truly grateful if anyone could spend a little time looking into this, as it affects any type of export workflow. If only there were at least one reliable method that worked well.

It’s also worth noting that D5 Render is able to properly interpret Rhino’s sub-object texturing (I imagine they spent a lot of time figuring this out), which proves it’s possible for other software or export methods to interpret Rhino models correctly. I believe the root of the issue lies in the ExtractRenderMesh command not recognizing different textures applied to a single object, and most export methods probably rely on that command.