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Question by Eradan · Jun 06, 2016 at 05:58 PM · deformation

Object deforming with rotation as parents

I have 4 tire Objects, children of a Empty object (scale 1,1,1), child of a "car" object (a cube, scale 3,1,5). They take the rotation of 4 WheelColliders. I get this:

alt text

I understand, reading MANY questions, that is a parent issue. Is there any workaround? I don't mind writing code but I'll have to do that to many objects so if I'm doing something wrong is best to catch it now than later. Thanks.

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Answer by Raresh · Jun 06, 2016 at 06:01 PM

Modifying the scale of the parent will change the scale of the children. If your wheels have their scale 1,1,1 and are children of an object with a 3,1,4 you will get a (1,1,1) * (3,1,4) scale. So you can:

A) drag the wheels out, set scale to 1, then drag them in, Unity will calculate the necessary scale so that they remain the same

B) Have the cube as a child of the car parent (just like the wheels), and modify only it's scale, leaving the parent's scale to 1,1,1 (better in my opinion)

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avatar image Eradan · Jun 07, 2016 at 01:46 AM 0
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I deleted the meshes of the tires, the empty object that they were children of and then recreated everything outside the car object. Now it works fine. Sure it's a headheache. The B solution is the most elegant and useful. Thanks.

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