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Keep primitive attributes when I save as obj

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I have some primitive attributes on a geometry. When I save as bgeo.sc (ROP Geometry Output), the attributes remain when imported, when I save as obj, they're gone. Is there a way I can save obj with primitive attributes?

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Hi Mani,

before exporting you can promote primitive attributes to vertex UVs and/or vertex normals and promote them back after importing the OBJ.

Wikipedia describes the OBJ-format:

The OBJ file format is a simple data-format that represents 3D geometry alone — namely, the position of each vertex, the UV position of each texture coordinate vertex, vertex normals, and the faces that make each polygon defined as a list of vertices, and texture vertices.



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