# Ar hit test example

**URL:** <https://discourse.threejs.org/t/ar-hit-test-example/17411>\
**Category:** Questions\
**Tags:** webxr\
**Created:** [July 26, 2020, 8:40pm UTC](https://discourse.threejs.org/t/ar-hit-test-example/17411 "2020-07-26T20:40:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![pascja](https://avatars.discourse-cdn.com/v4/letter/p/48db29/32.png) [@pascja](https://discourse.threejs.org/u/pascja)\
**Post date:** [July 26, 2020, 8:40pm UTC](https://discourse.threejs.org/t/ar-hit-test-example/17411/1 "2020-07-26T20:40:29Z")

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hi all, is it possible to use gesture to change size and position of the model inside the scene? or to add a always visible button instead of gesture?  
thanks

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**Author:** ![Mugen87](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.threejs.org/mugen87/32/5645_2.png) [@Mugen87](https://discourse.threejs.org/u/Mugen87)\
**Post date:** [July 27, 2020, 9:00am UTC](https://discourse.threejs.org/t/ar-hit-test-example/17411/2 "2020-07-27T09:00:42Z")

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> [@pascja](#):
>
> or to add a always visible button instead of gesture?

This question was already answered here:

> [@How to add a UI to immersive-xr AR view?](https://discourse.threejs.org/t/how-to-add-a-ui-to-immersive-xr-ar-view/16532/6):
>
> Fortunately, there is a new (experimental) Web API that enables exactly this feature. It’s called [WebXR DOM Overlays Module](https://immersive-web.github.io/dom-overlays/). According to the [Chrome Status Platform](https://www.chromestatus.com/feature/6048666307526656), this feature should be enabled by default since Chrome 83. One of the live demos works fine on my Pixel: [https://klausw.github.io/three.js/examples/webvr\_lorenzattractor.html](https://klausw.github.io/three.js/examples/webvr_lorenzattractor.html)

> [@pascja](#):
>
> is it possible to use gesture to change size and position of the model inside the scene?

What do you mean with gesture? Can you please explain in more detail?

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**Author:** ![pascja](https://avatars.discourse-cdn.com/v4/letter/p/48db29/32.png) [@pascja](https://discourse.threejs.org/u/pascja)\
**Post date:** [July 27, 2020, 9:57am UTC](https://discourse.threejs.org/t/ar-hit-test-example/17411/3 "2020-07-27T09:57:52Z")

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i would like to use fingers to move or change size of the object. using arcore it is possible to interact with the object using fingers ( 1 tap to the obj and than 2 fingers for change the size etc)