Transform GDB model to Cesium 3d tiles

Hi @asuxwq1991. Development investigated the issue and cannot reproduce it with an older and newer version of cesium. What version of cesium are you using?

 

If the cesium server is public facing, the URL to the scene would be useful as well. Development suspects the issue may lie in the javascript of your app.

Sharing a few more details will help the FME community help you. Please reply to this thread and provide additional details including:

• The version of FME you are using, including build number and edition
• A small sample of your data, or screenshots of the data in the FME Data Inspector
• A description of your expected output, with screenshots if possible
• Your FME workspace
• Your FME translation log file
• Any other information that may be useful to share

I think I ran into a similar problem (all models from a single tile would be highlighted when picking buildings in Cesium). I am also using Cesium 1.35. After some digging, it appears FME was writing the b3dm files with an attribute called BATCHID, however I think the b3dm spec expects the attribute to be called _BATCHID (with an underscore at the start).

https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/TileFormats/Batched3DModel

For my data, I found editing each of the b3dm files in the data folder and making the following changes allowed me to select individual buildings:

• Replace the string "BATCHID" with "_BATCHID"
• Replace the string "FME 2" with "FME2" (removing the space means the file stays the same length and offset values into the binary data aren't broken).

Hi,

still exists in FME 2018 Beta Build 18233.

The Workaround with Replacing BATCHID by _BATCHID works only under a few limited conditions.

Hi,

 

sorry for not keeping this question updated.

 

I believe that maybe after Cesium 1.37(not really sure about the exact edition), somehow the FME transfored model can be correctly displayed in Cesium, each separated model is individual and maintian its own property, at least this works for me in Cesium 1.41.

 

One more thing need to be noticed is that the transformed model doesn't contain LOD infos,so the performance will be laggy if you load like thousands of models in one time.