# collide question

**URL:** https://discussions.unity.com/t/collide-question/417429
**Category:** Physics
**Created:** [July 6, 2010, 3:41am UTC](https://discussions.unity.com/t/collide-question/417429 "2010-07-06T03:41:45Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![anon\_21361296](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@anon\_21361296](https://discussions.unity.com/u/anon_21361296)
#### Post date: [July 6, 2010, 3:41am UTC](https://discussions.unity.com/t/collide-question/417429/1 "2010-07-06T03:41:45Z")

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Hi,

I’m starting to work with the downloaded version and I’m very impressed with the app especially its free:).

I’d like to ask a question about collider. I have a first person controller and placed some trees. How come I can’t collide into the tree.

Thanks,  
XC

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### Author: ![j\_y\_k](https://avatars.discourse-cdn.com/v4/letter/j/71c47a/32.png) [@j\_y\_k](https://discussions.unity.com/u/j_y_k)
#### Post date: [July 6, 2010, 5:56am UTC](https://discussions.unity.com/t/collide-question/417429/2 "2010-07-06T05:56:23Z")

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Check out the docs, [here](http://unity3d.com/support/documentation/Components/terrain-Trees.html) (specifically the section near the end titled ‘Setting up Tree Collisions’).

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<div class="post-metadata">

### Author: ![anon\_21361296](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@anon\_21361296](https://discussions.unity.com/u/anon_21361296)
#### Post date: [July 7, 2010, 7:22am UTC](https://discussions.unity.com/t/collide-question/417429/3 "2010-07-07T07:22:22Z")

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Thank you.