How to pick object with mouse ...help

Troubleshooting gui
1

  How can I pick my imported .obj's polygons (not the bounding box) with the mouse in order to change the texture. I would like to use a camera like in "Hello mouse pick" (in the Jm tutorials).  Any help appreciated

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2

Well, I suggest you look at  "Hello mouse pick". If you want to change the texture, update the texture state, I guess.

3

What you want is triangle-accurate picking. See jmetest.intersection.TestTrianglePick.