As far as I understand it FME 3DTiles writer will keep the features/mesh as a whole. It will not cut/clip a mesh to create smaller tiles. In addition there is no generalisation performed on the geometries.

FME attempts to create smaller files by down-sampling the textures.

While FME can clip 3D features now it still can not properly clip a textured mesh.

You can try this tool: https://github.com/OpenDroneMap/Obj2Tiles

It works to convert OBJ directly to 3DTiles. It might not scale so well to your large OBJ but it might be just what you're looking for

Thanks for your quick response. I use Obj2Tiles for this conversion, but it seems to take a long time to convert LARGE OBJ files. On one project it took over 24 hours to tile a 1.5 GB Mesh into 5 LOD Tile. On smaller files it does great.

Thanks for the info - Long processing times on 3D Datasets like this aren't sooo uncommon. It's a lot of operations that it has to do. But a quicker process would be nice for sure. If the output is great and it's stable then that's a really big win.

Hey Guys, what is with the parameter settings in the cesium 3d tiles writer ?

Maximum Number of Triangle Faces per Tile = Smaler tiles. 😎

and after this operation, i would use the github files.

This only works per feature - FME doesn't split the features as far as I know - certainly not if the input features are mesh geometries