Get attribute information

[daicz]

Based on SDK for Unity 1.5.0, I found the GetArcGISRaycastHit method in the "HitTest" scenario, I think the featureId is to get the value of the ObjectID, and the featureIndex is to get the value of what, can you explain?

If I want to get other property definitions, how should I extend the logic, can write an example reference based on (URL:https://tiles.arcgis.com/tiles/P3ePLMYs2RVChkJx/arcgis/rest/services/Buildings_NewYork_17/ SceneServer) to write a sample reference?

The result I want is shown below:

Thanks!