Do exported glTF models follow the 3D Tiles specification?

[jorgeyp]

Hello:

I'm not sure if this is the best place to ask questions, I apologise otherwise.

I want to use Cesium to visualise BIM files as 3D buildings and 3DCityDB looks like a great solution. However, I plan to use the standalone Cesium viewer once they release the 3D Tiles branch.

Do you know if it is possible to load the 3DCityDB glTF tiles as a Cesium3DTileset into Cesium? In the other case, do you plan to implement 3D Tiles in the future?

Thanks and congratulations on the recent realease!

[lucasvw]

Hi Jorgeyp,

The 3DCityDB cannot export b3dm files. These b3dm files make up the Cesium3DTileset (for buildings that is, for pointclouds this would be i3dm files..).

We have however a converter which creates b3dm files from a 3DCityDB.. but its not open-source unfortunately..

[clausnagel]

Feel free to check out the following 3d web maps. They use Cesium 3D Tiles, and the b3dm tiles have been directly created from 3DCityDB content using the converter mentioned by @lucasvw.

http://www.businesslocationcenter.de/wab/maps/main/
http://www.businesslocationcenter.de/berlin3d-downloadportal/
http://wiesbaden.virtualcitymap.de/
http://bottrop.virtualcitymap.de/
http://demo.virtualcitymap.de/

[clausnagel]

Closing this issue. Feel free to re-open if you have further questions.