3d modelling - pivot of a 3d model outside its mesh after importing into Unity3d -

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as can see, pivot outside mesh. want use pivot rotating around, need set pivot real "rotating point". know there's setpivot script, works pivots inside meshes.

this mesh part of object contains several meshes, created wings3d. problem appears .obj , .3ds file extension.

enter image description here

1.how can fix this?

2.is there possibility define second pivot can used in scripts "rotate around"(maybe vector3 can set in "designer")?

i found youtube vide might help. don't know whether though.

does this help?


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