How to disable 3d tile in OSM building based on elementId

Rajesh_Kalavakunta · February 24, 2023, 7:49am

Hi,
I have uploaded the custom 3D tile into Cesium ION. Custom building tile I am able to load based on latitude and longitude on top of the cesium map, but I need to disable the OSM tile on the same lat long based on elementId.

Rajesh_Kalavakunta · March 2, 2023, 5:11am

@Kevin_Ring could you please help me here - how to disable a particular osm tile based on elementId?

Kevin_Ring · March 2, 2023, 8:26am

I don’t think it’s currently possible in Cesium for Unity. It’s possible in Cesium for Unreal via metadata styling, but we haven’t implemented that for Unity yet. It’s planned, though. Here’s the issue:

github.com/CesiumGS/cesium-unity

Feature styling with metadata

opened 09:49PM - 03 Feb 23 UTC

j9liu

enhancement

Cesium for Unity should offer feature styling, similar to Cesium for Unreal. The… implications of this affect what we'll do with point cloud rendering, so I'm starting to think about this now. CC @argallegos, we discussed this offline and I'm paraphrasing his ideas for this issue. In Cesium for Unreal, feature styling with metadata is done through the `CesiumEncodedMetadata` component. We can see how it's used via the [Visualizing Metadata tutorial](https://cesium.com/learn/unreal/unreal-visualize-metadata/), but basically it creates nodes in the Unreal version of Shader Graph and uses HLSL to access the metadata properties. It makes sense to do something similar with Shader Graph in Unity, especially because they offer [custom function nodes](https://docs.unity3d.com/Packages/com.unity.shadergraph@13.1/manual/Custom-Function-Node.html). The user may need to configure the `CesiumMetadata` component on the tileset, and then create their own version of the material / shader, in order to hook up the metadata properties to their own code. This may have complications with point cloud shading, but I'll write that up in another issue. Another option (though less preferable) is to have a metadata styling component that shows the user what metadata properties are present. Then, the user can set the colors (and perhaps other styling) of the metadata properties in the component itself, and Cesium for Unity could translate that into a shader under the hood. This is more approachable for a beginner user who is unfamiliar with writing shaders and just wants to do simple styling (e.g. make all buildings of a type blue), but it doesn't offer freedom for people who want to write more advanced shaders. Just some ideas for now -- we should try to figure out the ideal UX before thinking about implementation details.

Rajesh_Kalavakunta · March 2, 2023, 8:33am

Thank you for the information.