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Question by autoBot0 · Oct 03, 2017 at 02:43 PM · transformtranslatemeshcollidermesh renderermesh vertices

Find mesh top - Keep gameobject on top of a mesh

In the game I'm making I need to make a piston that's composed of 2 parts: a top part and an extending part. As the extending part extends (I used gameObject.transform.localScale += speed) I need the bottom of the top part's mesh to match the top of the mesh of the extending part. In the final product one should be able to see a smooth increase in lenght in the extending part and the top part should look "welded" on top of the extending part. I tried matching the 2 items by translating the top part but it didn't work. What can I do to make this work? Thanks!
Edit: I should specify that the top part and the extending part are bound by a Fixed Joint and the top part is connected my a Configurable Joint to another gameobject

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