TextSymbol3DLayer is used to draw text labels for features of any geometry type.
See https://developers.arcgis.com/web-scene-specification/objects/textSymbol3DLayer/.
Optional
Font used for text symbols.
The material used to shade the geometry.
Font size in points, positive only.
Type:String.
The type of the Symbol3DLayer. See Symbol3DLayerJsonType.
TextSymbol3DLayer is used to draw text labels for features of any geometry type.
See https://developers.arcgis.com/web-scene-specification/objects/textSymbol3DLayer/.