# Hi,im new , so i have this problem, i tried to add a sphere collision inside an ai controller, but it doesnt show on the viewport?why is that? when use in a BP\_character,it shows

**URL:** <https://forums.unrealengine.com/t/hi-im-new-so-i-have-this-problem-i-tried-to-add-a-sphere-collision-inside-an-ai-controller-but-it-doesnt-show-on-the-viewport-why-is-that-when-use-in-a-bp-character-it-shows/481555>\
**Category:** World Creation\
**Tags:** sphere-collision, unreal-engine, Physics, Collision, question\
**Created:** [April 7, 2021, 4:51pm UTC](https://forums.unrealengine.com/t/hi-im-new-so-i-have-this-problem-i-tried-to-add-a-sphere-collision-inside-an-ai-controller-but-it-doesnt-show-on-the-viewport-why-is-that-when-use-in-a-bp-character-it-shows/481555 "2021-04-07T16:51:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![KISEIJUYU](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@KISEIJUYU](https://forums.unrealengine.com/u/KISEIJUYU)\
**Post date:** [April 7, 2021, 4:51pm UTC](https://forums.unrealengine.com/t/hi-im-new-so-i-have-this-problem-i-tried-to-add-a-sphere-collision-inside-an-ai-controller-but-it-doesnt-show-on-the-viewport-why-is-that-when-use-in-a-bp-character-it-shows/481555/1 "2021-04-07T16:51:06Z")

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![335083-asdfff.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/b/1/6b106b7dec3bad979dd66a40805614dd3a94ce4c.jpeg)

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**Author:** ![Everynone](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/everynone/32/1135017_2.png) [@Everynone](https://forums.unrealengine.com/u/Everynone)\
**Post date:** [April 7, 2021, 5:26pm UTC](https://forums.unrealengine.com/t/hi-im-new-so-i-have-this-problem-i-tried-to-add-a-sphere-collision-inside-an-ai-controller-but-it-doesnt-show-on-the-viewport-why-is-that-when-use-in-a-bp-character-it-shows/481555/2 "2021-04-07T17:26:39Z")

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> why is that?

Unlike the BP\_character, the AI Controller is not a physical actor - think of it as of an overseeing manager for the AI.

The collision sphere should be in the Pawn controlled by the controller, no? What’s the end goal?

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**Author:** ![furyofwoodan](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@furyofwoodan](https://forums.unrealengine.com/u/furyofwoodan)\
**Post date:** [March 15, 2023, 3:29am UTC](https://forums.unrealengine.com/t/hi-im-new-so-i-have-this-problem-i-tried-to-add-a-sphere-collision-inside-an-ai-controller-but-it-doesnt-show-on-the-viewport-why-is-that-when-use-in-a-bp-character-it-shows/481555/3 "2023-03-15T03:29:22Z")

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got same issue. any solutions ?