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LODGeneration

First generate LOD, then move the point arrays of the meshes to the model. This is necessary, because LOD might add additional points (even though it doesn't atm). So the number of points in the mesh is unknown until LOD is generated.

It doesn't matter whether the master scaling factor is applied to the model before or after LOD generation. The master scaling factor is integrated into the mesh matrices, which are not used by LOD generation. LOD generation works on vertex coordinates only.