When exporting a 3dm file from rhinocommon (ghpython); and loading that with ThreeJS 3dm loader. the brep objects don’t have a “mesh” attribute. If I open this file in Rhino and save again. They would have the mesh for preview in threeJS. My guess is that the objects don’t have a “Preview” mesh by…

If you are creating objects programmatically, they won’t have render meshes by default. You need to call https://developer.rhino3d.com/api/rhinocommon/rhino.docobjects.rhinoobject/createmeshes to generate these before you export. Notice this is on a BrepObject, so you need to add the Brep to the doc…

Preview mesh for created Objects in rhinocommon File3dm

Rhino Developer

Kaushik July 21, 2023, 2:48am 2

Possible duplicate of: Three.js 3DM Loader fails to load BREPs

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Preview mesh for created Objects in rhinocommon File3dm

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