Today announces the release of the first update to Prepar3D v3!

The Prepar3D v3.1 update is available now and can be downloaded from your Downloads page. If you currently own a valid Prepar3D v3 license, there is no charge to update to Prepar3D v3.1.

For the first time, we will be offering separate updates for the Client, Content, and Scenery. This will make updating faster and easier than ever before. Please be sure to read the Prepar3D v3 Download and Installation Directions for more details on how to update to the v3.1 release.

The Lockheed Martin Prepar3D team loves hearing about your experiences with Prepar3D at our Forums. The forums also give us an opportunity to listen to your feedback as we continue Prepar3D development. We’ve partnered with our forum users and with several featured developers to continue to bring added features, enhancements, and optimizations all while bringing additional backwards compatibility, bug fixes, and stability to Prepar3D v3.1. The new v3.1 introduces improvements to the water system, a new controller calibration screen, OGG audio support, and numerous bug fixes.

You can find a full list of What’s New below.

Prepar3D v3.1 – Release Notes

The following list of updates has been categorized based on the installer required.

The Client installer is required for Prepar3D v3.1, however the Content, Scenery, and SDK installers are optional. You must first have Prepar3D v3.0 installed to utilize the Client only installer. To install the Prepar3D v3.1 Client, you must first uninstall the Prepar3D v3.0 Client via Programs and Features in Windows Control Panel. The Prepar3D v3.1 Client update will require you to reactivate your product, however if you have an internet connection or have not made any major hardware changes between installations this should not be an issue. For more information please view the Prepar3D v3 Download/Installation Instructions from the Prepar3D.com Downloads section.

If this is your first time installing Prepar3D v3, you can simply install Prepar3D v3.1 directly.

Prepar3D v3.0 will no longer be available from Prepar3D.com.

Prepar3D Client

General Platform Updates New Features Added OGG audio file support



Added Scaleform sound support



Added axis calibration screen to the Control Settings Calibration tab

Fixes and Improvements Fixed issue where BoatSim attached weapons would not transform correctly



Fixed bug that prevented AircraftPilotWaypointAI from correctly loading the WaypointTouchDistance property



Added “IgnoreInvalidLocale” option to Prepar3D.cfg



Fixed issue that would prevent the ATC window from opening when using certain vehicles



Fixed issue that caused input messages to not be received for an extended period of time on first launch



Fixed crash that would occur if mission page in Kneeboard window referenced file or directory that did not exist



Content Error Reporting now off by default



Improved Select Airport search functionality



Fixed issue that would cause doors to automatically close when near a fuel parking spot



Fixed bug that would cause avatar fall animation to display too often



Fixed bug where picture-in-picture view opened by scenario would become active when opened



Prevent On Screen Text from showing on secondary views



Fixed visual bug that could cause weapons to lag behind for one frame



Fixed bug that would cause realism overrides to get overridden with current system settings when saving scenario



Fixed additional UI layout bugs



Improved readability of InfoGen text



Fixed crash that could occur when autopilot key was triggered when no autopilot was present



Fixed bug where ATC message area would expand when no options were present



Fixed bug that altered menu appearance at high DPI settings



Fixed crash that would occur in scenarios when closing a MultiChoicePopup window that was opened through a MenuPromptTrigger



Fixed bug where weapons would not register mass and force properties when attached to pylons

Rendering and Performance Updates New Features Added dynamic reflections on objects by replacing the static environment map with a dynamic cube map



Special Effects can now be rendered on terrain and water



Enhanced visual quality of water offering greater fidelity at high altitudes and better wave dynamics with high winds



Boats now move with water surface elevation

Fixes and Improvements Fixed issue that caused weapon trails to not animate correctly at long distances



Triton water updated to Cuda 6.5 and performance improved



Fixed issue where sea foam texture would not display across multiple graphics cards



Fixed bug where 3D water would not correlate correctly between multiple views



Fixed terrain spikes that would occur with multiple moving views



Reduced black textures when switching views showing previously requested objects



Fixed crash that would occur when more than 24 2D views were opened



Fixed issue with bump mapping where tangent was calculated incorrectly



Fixed color of emissive night only materials



Fixed lighting value used for nighttime reflections



Prevent sun and moon from fogging when volumetric fog is disabled



Fixed issue where last emitted extrusion would become detached from the emitter



Fixed bug that caused light effects to be overridden to use incorrect effect file

SimDirector Updates New Features Control modes now have hotkeys



Focal points can now be drawn outside the vehicle and placed in the world

Fixes and Improvements Fixed bug where using gizmos near edge of screen would cause object to move unexpectedly



Fixed issue where objects with AI behaviors would not process without being assigned a waypoint list



Fixed crash that would occur when using MenuPromptTrigger to change user vehicle



SimDirector command line switch now takes precedence over the startup screen



Fixed issue that prevented large Sphere Areas from rendering correctly



Fixed bug where AGL property would be out of sync with actual placed object



Target Player can now be set to specific players within SimDirector



Fixed cases where visualization auto-center would position incorrectly



Fixed crash that would occur when running scenarios using legacy focal points



Fixed crash that could occur when quickly entering and leaving the backstage menu multiple times

SDK and SimConnect Updates New Features Updated window PDK with additional targeting controls



Special effects can now be flagged as decals



POV events can now be registered for ISimObjects



Added “ignore_input” panel config entry enabling mouse clicks to pass through docked panels



Panels can now support both xml gauges and Scaleform concurrently

Fixes and Improvements Added missing window PDK unregister callback functions



Cleaned up Simvar documentation



Fixed bug where setting global weather through SimConnect would not update at all altitudes



Fixed crash that could occur when detaching avatar while using Window PDK



Pick results requested through PDK now clarify if point is offscreen



Added ISimObjectManager function to get all objects within radius excluding traffic



Fixed bug that caused SimConnect_MapInputEventToClientEvent to behave differently than in previous versions



Added content error reports for common Window PDK errors

Multiplayer Updates Fixes and Improvements Enhanced ISimObject multiplayer support



Updated multiplayer documentation



Fixed bug where host would not correctly serialize the visibility state of client avatars



Fixed bug where saving a scenario and then entering multiplayer would cause a blank Menu Window to appear



Removed 30 second wait that would occur when starting non-race structured multiplayer scenarios

Prepar3D Content

General Updates Fixed Beech Baron virtual cockpit light offsets



Additional updates to the India Foxt Echo F-35A

Prepar3D Scenery

General Updates Minimal accuracy changes for five south-eastern United States of America airports



Updated coastlines, lakes, rivers, and elevation model in Singapore

Prepar3D SDK

General Updates Scripts will now utilize user temporary directory preventing the need to run as administrator



The user now has an option to reference a local modeldef.xml in the same directory as there .max file



Fixed an issue where the Shader Tool rollout would fail to load



Fixed an issue where documentation would fail to load



Improved Shader Tool in 3DS Max to preview more dynamic options including diffuse, specular, day/night textures, and alpha testing

Thank you for your continued support for Prepar3D.

We hope you find that Prepar3D v3.1 continues to be the most immersive learning, simulation, and training platform available.