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Question by JonnyHolmes · Jun 25, 2017 at 02:55 PM · axisparent-child

Get parent axis of child's forward axis

I want to be able to find, in my parent object, the axis that is pointing in the same direction as the child object.

alt text

alt text

In the first image you can see the parent object's axis. In the second image you can see a child box collider. In a script attached to the parent, I want this to return to me (0f, -1, 0f) , or '-Vector3.up' e.g. '-y' as the axis, because that is the axis from the parent's point of view, that the child is facing. How would I do this?

pic2.png (40.4 kB)
pic1.png (55.0 kB)
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Answer by DarkT0mato · Jun 19, 2019 at 06:49 PM

you need to have:

 GameObject child;

and then you just use the:

 transform.TransformDirection();

for example:

 child.transform.TransformDirection(Vector3.forward);

will refer to the forward according to your child's object. (the forward direction he is looking at)

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avatar image Bunny83 · Jun 19, 2019 at 08:16 PM 0
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A line like this makes no sense:

 child.transform.TransformDirection(Vector3.forward);

as it's just the same as

 child.transform.forward;

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