Transient DirectContext3D overlays for Revit only. Not a shared multi-host rendering stack.
- Implementation lives under
source/RevitDevTool/Visualization/. - Server-per-geometry-type with opaque + transparent passes.
- Logging geometry listeners may feed visualization; shared libs must not take a DirectContext3D dependency.
- Architecture:
docs/architecture/Visualization/README.md - Host boundaries:
docs/agents/host-boundaries.md