Hi everybody, I can’t export from Rhino to Blender preserving both layers and solids. if I export in OBJ I can tessellate the mesh as I want and the imported mesh in Blender is perfect (manifold solid and with proper normals and shading), however, the layers are lost. If I export in Glb or glTF I…

Yes, you did a terrific job with the plugin! unfortunately it imports exploded geometries (if you enter edit mode you will see that the solids are lost)

That is because Rhino mesh format has meshes with hard edges like this unwelded. You can simply do “Merge By Distance” in Blender in edit mode with all verts selected. And in object mode afterwards do Object > Shade Auto Smooth.

Unfortunately, this does not always work, the visualization meshes in Rhino are not made to be welded in the first place, so at sharp edges some vertices will not always match and thus they will not weld properly leaving the objects open in Blender. But if you try export manually from Rhino in obj …

[image] Rikkarlo: Unfortunately, this does not always work, the visualization meshes in Rhino are not made to be welded in the first place, so at sharp edges some vertices will not always match and thus they will not weld properly leaving the objects open in Blender. By default Rhino meshes a…

Yes I’m on 0.0.15 version. [Immagine 2024-12-04 114753] I don’t know what I’m doing differently, but I’ve used your 3dm file and I still see flat shading and also even if most vertices are welded some of them are not, you can try to filter the edges by trait and select non-manifold. I got this se…

[image] Rikkarlo: I got this selection and in that point the mesh is not welded properly Is this after Merge By Distance (mesh.remove_doubles)? I don’t see that here. Yes, I have to re-apply Shade Auto Smooth after removing doubles, but there are no unwelded vertices here.

Yep I followed all your steps and I still got non-manifold edges after welding, can you send your Blender file so I can check as well? PS: I don’t want to exploit too much your time, you already helped a lot, but in case you’d like to debugging the issue together maybe it’s faster to do it face to …

Have you tried iges or step as brep fileformats? [image] STEP import Coding Released Scripts and Themes add-ons commercial …

This is dope. Keep the good work! These days I do a few renderings from Rhino to Blender but for sure I could use this in a near future.

Export from Rhino to Blender preserving solids and layers?

Rhino Rhino for Windows

nathanletwory (Nathan 'jesterKing' Letwory) April 22, 2025, 5:27pm 19

Give huge amounts of money?

Anyway here’s an old thread on the topic Rhino Inside in blender .

I’ve done some prototyping, experimental stuff. But nothing has yet come of it.

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Export from Rhino to Blender preserving solids and layers?

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