DirectCGF 3.9.0 - Release Notes

DirectCGF 3.9.0

Release Notes • Q4 2026

General

  • Updated Windows requirements: DirectCGF now requires Windows 10 version 20H2 or later for .NET Framework 4.8.1 compatibility.
  • Scenario Milestones: Players can now save scenario snapshots during pause mode and reload them as standalone scenarios.
  • Timer Operator Fix: Visual Programming timers now execute for the exact intended simulation duration.
  • Wait on a Racetrack: Heading, Leg Duration and Turn Duration parameters have been removed to prevent unintended platform modifications.
  • Group Persistence: Platform groups are now embedded directly in scenario files.
  • 3DTiles Support: 3DTiles (.json) can now be loaded within the Layer Manager.
  • GeoRef Grid: New GeoRef display grid available in Tactical View.
  • Ocean Layer: Fixed display issue preventing visualization of the Ocean Layer.
  • Detonation Impact Position: Improved impact location accuracy.
  • Subsystem Visibility: Subsystems are no longer deployable manually from platform libraries.
  • Editable Navaid Identification: Navaid identification can now be modified from Player Mode.
  • Player Freeze Fix: Fixed freezes occurring during Homing 2D, Homing 3D and Wait on Circle orders.
Impact: Timer corrections and new detonation computation may slightly modify existing scenario timelines and weapon impact locations.

Performance

  • AIS Optimization: AIS emitter computations have been optimized, reducing processing costs by more than 50% and allowing significantly larger AIS traffic simulations.

Visual Programming

  • Weapon Fire triggers now expose the fired platform (missile, munition, etc.) as an output.
  • Improved Property Editor synchronization between Behavior Sequencer and Visual Programming views.
  • Fixed the "Detached Platform" output of the Detach behavior.
  • Fixed errors when copy-pasting platforms using "Breakaway from Formation".
  • Ballistic weapons have been removed from dynamically spawnable platforms.

CAP Relay & Racetrack Improvements

  • Counter-Rotative CAP behavior renamed and improved.
  • CAP Relay can start before aircraft reach the racetrack.
  • Joining trajectories are faster and more efficient.
  • Aircraft now use maximum load factor during racetrack entry maneuvers.
Impact: Aircraft using CAP Relay will reach their patrol patterns faster and follow improved trajectories.

Platform Architect

  • Added "Default Ship Type" property for AIS Emitters.
  • Corrected min/max rotation limits for articulated parts.
  • Launchers now rotate correctly by default when created.
  • Reworked Azimuth/Elevation helper visualization for improved usability.

Interoperability (DIS / HLA)

  • Persistent DIS Proxies: DIS proxies now remain in the scenario after timeout events, improving interoperability resilience.
  • Static entities now emit Static Dead Reckoning (Mode 1) when exported through DIS/HLA.
  • Site ID / Application ID modifications correctly refresh existing Entity IDs.
  • Fixed erroneous acceleration vectors in Entity State PDUs causing small teleports.
  • Detonation PDUs now use the Weapon's Munition Type instead of the Damage Model Entity Type.
  • Fixed an error occurring when destroying submarines while interoperability was active.
Persistence Status Colors:
🟧 Orange = Heartbeat timeout exceeded
⬜ Grey = Proxy timed out but remains available awaiting new updates

Key Benefits

  • More accurate simulation results.
  • Improved DIS/HLA robustness.
  • Faster CAP relay behavior.
  • Higher AIS traffic scalability.
  • Enhanced scenario authoring workflow via milestones.
  • Better collaboration through embedded platform groups.
DirectCGF 3.9.0 • Q4 2026 Release Notes
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