question about "_BATCHID" in b3dm using draco

Hello,i have a question about b3dm. I can use draco in b3dm ,but i do not know how to using "_BATCHID" in draco? The draco GeometryAttribute only have POSITION / NORMAL / COLOR / TEX_COORD / GENERIC/ NAMED_ATTRIBUTES_COUNT attributes,so which one can be used in "_BATCHID"? Thank you!

The batchId is typically used for styling, see:

Are you trying to write a tool to generate 3D Tiles? You might find the samples here useful:

As well as this tools repo:

It might also be useful to try uploading your models on Cesium ion ( which will automatically Draco compress the result.

Thank you for your reply,It can work.

在 2018年12月18日星期二 UTC+8上午4:46:27,Omar Shehata写道: