# Select a position for placing a 3D object

**URL:** <https://forum.8thwall.com/t/select-a-position-for-placing-a-3d-object/4602>\
**Category:** Technical Support\
**Created:** [January 26, 2025, 10:17am UTC](https://forum.8thwall.com/t/select-a-position-for-placing-a-3d-object/4602 "2025-01-26T10:17:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Nour\_El-Deen\_Wael](https://avatars.discourse-cdn.com/v4/letter/n/c67d28/32.png) [@Nour\_El-Deen\_Wael](https://forum.8thwall.com/u/Nour_El-Deen_Wael)\
**Post date:** [January 26, 2025, 10:17am UTC](https://forum.8thwall.com/t/select-a-position-for-placing-a-3d-object/4602/1 "2025-01-26T10:17:57Z")

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Hi,  
I would like to create an AR experience where the phone detects points (e.g., plane detection) in the environment and allows users to select a position for placing a 3D object. Could you please guide me on how to implement this using 8thWall?

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**Author:** ![GeorgeButler](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.8thwall.com/georgebutler/32/1903_2.png) [@GeorgeButler](https://forum.8thwall.com/u/GeorgeButler)\
**Post date:** [January 27, 2025, 5:36pm UTC](https://forum.8thwall.com/t/select-a-position-for-placing-a-3d-object/4602/2 "2025-01-27T17:36:54Z")

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Hi, welcome to the forums!

Projects that use **World Effects** rely on plane detection to determine where to place your content. However, please note that World Effects cannot detect multiple planes simultaneously. Instead, the single detected plane adjusts to the most suitable location based on what the camera sees at any given moment.

> **[Studio: World Effects | 8th Wall | 8th Wall](https://www.8thwall.com/8thwall/world-effects)**
>
> This Niantic Studio example allows the user to grow cacti 🌵 by tapping or clicking the ground.