# Android improvements - view3dscene-mobile alpha, glTF reading and more

**URL:** https://forum.castle-engine.io/t/android-improvements-view3dscene-mobile-alpha-gltf-reading-and-more/125
**Category:** News
**Created:** [February 28, 2020, 6:05pm UTC](https://forum.castle-engine.io/t/android-improvements-view3dscene-mobile-alpha-gltf-reading-and-more/125 "2020-02-28T18:05:49Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![michalis](https://forum.castle-engine.io/user_avatar/forum.castle-engine.io/michalis/32/3_2.png) [@michalis](https://forum.castle-engine.io/u/michalis)
#### Post date: [February 28, 2020, 6:05pm UTC](https://forum.castle-engine.io/t/android-improvements-view3dscene-mobile-alpha-gltf-reading-and-more/125/1 "2020-02-28T18:05:49Z")

</div>

| [![view3dscene-mobile](https://castle-engine.io/wp/wp-content/uploads/2018/03/v3dm-1_castle-200x150.png)](https://castle-engine.io/wp/wp-content/uploads/2018/03/v3dm-1_castle.png "view3dscene-mobile") |
| [![view3dscene-mobile: Options screen, with table view](https://castle-engine.io/wp/wp-content/uploads/2018/03/v3dm-2_tableview-200x150.png)](https://castle-engine.io/wp/wp-content/uploads/2018/03/v3dm-2_tableview.png "view3dscene-mobile: Options screen, with table view") |

We’re busy making [view3dscene-mobile](https://github.com/castle-engine/view3dscene-mobile) and [The Unholy Society for mobile](https://unholy-society.com/) 🙂 This caused a number of Android-specific improvements to CGE:

- Important bugfix: glTF loading on Android fixed. To remind, [glTF is one of our main 3D model formats](https://castle-engine.io/creating_data_model_formats.php).

- [Initial alpha versions of view3dscene-mobile](https://github.com/castle-engine/view3dscene-mobile/releases/latest) are available for download (as an APK file). Our model viewer, [view3dscene](https://castle-engine.io/view3dscene.php), is coming to mobile! _view3dscene-mobile_ was developed by _Jan Adamec_ and _Michalis Kamburelis_ long time ago. Due to Michalis being overworked, it still wasn’t released officially. I want to fix it soon!

- Fix for Android reading/writing files from “external storage” (anywhere outside of application data, like SD card): you need to include new service [read\_external\_storage](https://github.com/castle-engine/castle-engine/blob/master/tools/build-tool/data/android/integrated-services/read_external_storage/README.md) or [write\_external\_storage](https://github.com/castle-engine/castle-engine/blob/master/tools/build-tool/data/android/integrated-services/write_external_storage/README.md) to have proper permissions to do this on new Android.

- Fix for Android vibrations (demo in [examples/mobile/simple\_3d\_demo/](https://github.com/castle-engine/castle-engine/tree/master/examples/mobile/simple_3d_demo)).