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Is it possible to create a tileset.json for almost any file of 3D format? If yes, then please guide me.
I have tried using the Cesium ion API through which CityGML can be uploaded to Assets and can be visualized easily.

From a quick glance, the samples like https://github.com/CesiumGS/3d-tiles-samples/blob/main/next/TilesetWithTilesetMetadata/tileset.json seem to use .glb as their content, but do not mention 3DTILES_content_gltf in their extensionsUsed and extensionsRequired.

For example, if Tile level3-5-0 also has child subtree like level0-0-0 does, then can we also call level3-5-0 an implicit root tile?
If so, then where(which url?) to store implicitTiling object for tile/subtree-node level3-5-0?

https://github.com/CesiumGS/3d-tiles-samples/tree/main/1.1/SparseImplicitQuadtree#structure
https://github.com/CesiumGS/3d-tiles-samples/blob/main/1.1/SparseImplicitQuadtree/screenshot/subtreeInfo.md#coordinates-level3-5-0

Using the example server.js.

This makes it easier to use the server when testing tilesets from various sources.

@rahwang

Since there are now many .3dtiles files flying around, it would be super helpful to view these in Cesium locally. To start we can add support for that here in 3d-tiles-samples in server.js and possibly move the code over to Cesium.

Check out the tools https://github.com/AnalyticalGraphicsInc/3d-tiles-tools/blob/master/tools/lib/tilesetToDatabase.js and https://github.com/AnalyticalGraphicsInc/3d-tiles-tools/blob/master/tools/lib/databaseToTileset.js for seeing how the database file is organized.

• Prefix BATCHID semantic with an underscore, CesiumGS/3d-tiles#160

Also update the tilesets in https://github.com/AnalyticalGraphicsInc/cesium/tree/3d-tiles/Specs/Data/Cesium3DTiles

The "expiration" functionality is not part of the specification (c.f. CesiumGS/3d-tiles#560 (comment)). So the TilesetWithExpiration should be removed

I'll do that as soon as other open PRs are merged, so this issue is rather a reminder (and a chance for others to chime in if it should be kept...)

I cloned the repo , ran npm install and start . the home page is showing error
"Cannot GET /tilesets/"

The Cesium3DTileset constructor has been deprecated for a while, and is now replaced by fromUrl, causing the example sandcastles here to plainly no longer work. The sandcastles have to be updated ASAP.

Hi pjcozzi.
How to build 3d tiles from my shapefile?

I want to create a tileset width discrete LODs like the sample 'New York City" show on www.cesiums.org
https://cesiumjs.org/NewYork/index.html
can you tell me the steps to achive it

MetadataGranularities is failing validation: Tileset must define refine property in root tile.

I think it would make sense for the root tile to be "ADD" and the children tiles to be not specify the refinement (and thus inherit "ADD" from their parent)

We are trying to integrate 3D tiles in http://osgjs.org. Unfortunately we can't support all versions of glTF so it would be nice if the samples can be upgraded to glTF 2.0. Thanks!

This issue is intended for collecting high-level ideas about 3D Tiles samples that may be added here. Details about specific examples can be discussed in dedicated issues or the corresponding PRs.

^{(This issue is a replacement of CesiumGS/3d-tiles#562 , and the following list is based on this issue)}

• Simple "unit test" models for the major new features
• Simple "unit test" models for the major types of models, e.g., photogrammetry, CAD, point clouds
• "Integration test" models that combine prominent use cases such as per-texel metadata in photogrammetry, and MESHOPT-compressed point clouds
• "Scalability test" model so developers can test their out of core algorithms
• A double-headed quadtree (see CesiumGS/3d-tiles#512 (comment) )
• Further examples of implicit tiling, maybe pointing out different combinations of available levels and subtree levels...?
• A small sample with 3DTILES_bounding_volume_S2
• Samples for the 'semantics' of metadata
• More examples for the glTF Metadata extensions. For example, there could be an EXT_structural_metadata version of the current TilesetWithFullMetadata

Hi,
I created tileset acording to google gridtile,and I want to show my b3dm files over the json files because of my tile creation scenario. I created tilejson with 15 level of grid and set b3dm file then I added another girt tile json files as childs of b3dm in children property. But when I showing them on cessium only 15 level I saw . I dont know where is my pfault. Can any one help me?
Here is my tile set
15.zip
16.zip
17.zip
18.zip
in my scenario 15 level must link 16 and then other evel must show another. I had to upload one by one due to upload limit

And also this is result I saw

thanks in advance

@OmarShehata can you edit the README so that the code sample takes the full .json path of the tileset? Related to CesiumGS/cesium#6678

We can also simplify the zooming code now. Change:

tileset.readyPromise.then(function(tileset) {
    viewer.camera.viewBoundingSphere(tileset.boundingSphere, new Cesium.HeadingPitchRange(0, -0.5, 0));
    viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
});

to

viewer.zoomTo(tileset);

After making these changes just confirm that everything still works properly. Thanks!