The external service that provides the facility to draw externally specified geometry in a Revit view in a way that is conceptually similar to a low-level graphics API.
To use this service, programmers implement a server class that derives from Autodesk::Revit::DB::DirectContext3D::IDirectContext3DServer.
Namespace: Autodesk.Revit.DB.ExternalService
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)
Syntax
C#
public static ExternalServiceId DirectContext3DService { get; }