# Help us test the new underground features in CesiumJS

**URL:** <https://community.cesium.com/t/help-us-test-the-new-underground-features-in-cesiumjs/9581>\
**Category:** General\
**Created:** [May 8, 2020, 7:46pm UTC](https://community.cesium.com/t/help-us-test-the-new-underground-features-in-cesiumjs/9581 "2020-05-08T19:46:27Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![omar](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/omar/32/1999_2.png) [@omar](https://community.cesium.com/u/omar)\
**Post date:** [May 15, 2020, 1:34pm UTC](https://community.cesium.com/t/help-us-test-the-new-underground-features-in-cesiumjs/9581/6 "2020-05-15T13:34:50Z")

</div>

Hmm, it looks like the latest commit has some failing unit tests, maybe that’s why the automatic deployment broke. In the meantime, here’s what you can do to run this Sandcastle locally:

- Make sure you have [npm installed](https://www.npmjs.com/get-npm)
- Download the latest underground branch code: [https://github.com/CesiumGS/cesium/archive/camera-underground-controls.zip](https://github.com/CesiumGS/cesium/archive/camera-underground-controls.zip)
- Extract that and run `npm install` inside the extracted folder
- Run `npm run build`
- Run `npm run start`
- Now you can check out these two Sandcastle links locally:
  - [Underground mine glTF model](http://localhost:8080/Apps/Sandcastle/index.html#c=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)
  - [Sandcastle with all the options](http://localhost:8080/Apps/Sandcastle/index.html#c=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)

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_[View the full topic](https://community.cesium.com/t/help-us-test-the-new-underground-features-in-cesiumjs/9581)._
