ArcGIS Pro 2.8 API Reference Guide
FeatureSceneLayer Class
Members 

ArcGIS.Desktop.Mapping Namespace : FeatureSceneLayer Class
FeatureSceneLayers currently support the I3S Point and 3D Object layer types. Points must be based off 3D point data and 3D Objects must be based off multipatches
Object Model
FeatureSceneLayer ClassCIMDefinitionFilter ClassLayer ClassCIMDataConnection ClassCIMBaseLayer ClassFeatureClass ClassCIMRenderer ClassSelection ClassSpatialReference ClassMap ClassILayerContainer InterfaceEnvelope ClassRowCursor ClassSelection Class
Syntax
Inheritance Hierarchy

System.Object
   ArcGIS.Desktop.Framework.Contracts.PropertyChangedBase
      ArcGIS.Desktop.Mapping.MapMember
         ArcGIS.Desktop.Mapping.Layer
            ArcGIS.Desktop.Mapping.CompositeLayer
               ArcGIS.Desktop.Mapping.ServiceLayer
                  ArcGIS.Desktop.Mapping.SceneServiceLayer
                     ArcGIS.Desktop.Mapping.FeatureSceneLayer

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

FeatureSceneLayer Members
ArcGIS.Desktop.Mapping Namespace