Including 3d objects

Forgive such a newbie question, but how do we include 3d objects like those distributed by NASA at ?

It is not as trivial as one might hope… In general, your best hope is to use a software like blender to re-export the model as an OBJ where the textures have absolute paths in the associated MTL file. I also suggest that textures are renamed with a unique file name such that multiple loaded 3D models won’t have something like “image_0.jpg” (this causes WWT to get confused). I can make a step by step demo if needed, but probably not in the next couple weeks.

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