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I am trying to write a script that re-sizes imported glb models to a fixed dimension (x/y/z = 1, whichever is the longest). The problem is that the models usually consist of many nested objects for which I can not get the absolute dimensions. I built a resizing function in Threejs but unfortunately blender doesn't seem to support giving absolute dimensions of a group of objects.

I am lost here, and would appreciate any hints towards a solution.

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This is the process that worked for me.

I basically just select all objects of type MESH and join them. Then I remove all objects of type EMPTY that might be parented to the mesh (eventually normalising the transforms with transform_apply(location=False, rotation=True, scale=True)). From there it becomes very easy to programmatically manipulate the object.

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  • $\begingroup$ This is pretty destructive approach in that all local coordinates will be lost. Materials could also be an issue. $\endgroup$
    – batFINGER
    Jun 25 '20 at 13:31
  • $\begingroup$ Hmm, good point with the materials. $\endgroup$
    – Max
    Jun 25 '20 at 13:32

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