Lockheed Martin Prepar3D v5.1 Hotfix 1

Client Fixes and Improvements

• Multiple rendering system stability improvements.
• Reduced cases of cloud aliasing with Enhanced Atmospherics.
• Fixed issue that caused legacy clouds to flash in some cases.
• Fixed issue that could cause shadow flashing at higher framerates.
• Improved transparent object sorting.
• Fixed issue causing particles to flash in some cases.
• Fixed issue causing ambient lighting to appear too dark at high altitudes.
• Fixed issue causing HTML5 windows including the ATC and SimConnect menu to be placed offscreen in VR.
• Added CIGI option to hide the user aircraft model.
• Removed content error report when accessing invalid index in GetPayloadStationName.
• Fixed issue preventing parts of vegetation from drawing in some cases.
• Added additional configuration options to the VolumetricClouds.cfg and updated several default cloud values.
• Fixed crash that could occur when SimObjects were removed if AdaptiveSimGroupEnable was enabled.
• Updated HTML5 ATC to hide message log if setting is checked.
• Fixed issue where the Weather screen would ignore the first change made to weather settings if a theme was selected.
• Added aux camera to HMD emulator allowing XYZ and PBH control on the emulated headset.
• Fixed invalid fog/haze values from being applied to objects in singlepass view mode.
• Fixed issue preventing auto exposure from functioning correctly in VR.
• Fixed issue where time would not progress when checking UTC time in UI.
• Showing time as UTC in the UI is now saved between sessions.
• Fixed cases where search bar would be cut off in Controls UI screens.
• Fixed issue causing single pass to be disabled when switching views in some cases.
• Fixed issue preventing StoppingDistanceFeet from converting units correctly in SimDirector.
• Fixed issue that could cause legacy cloud colors to invert if HDR was active in some cases.
• Fixed issue preventing dialog popups from showing when display driver crashes in some cases.
• Fixed issue preventing the title in the SimConnect HTML5 window from updating when changed.
• Fixed crash when deserializing DIS Transimitter PDUs.
• Added SimDirector VirtualRealityTrigger that can be set to fire when VR is enabled or disabled.
• Added SimDirector ActionExecutionFilter that can be set to only allow actions to fire if VR is active or not active.

Scenery Fixes and Improvements

• Fixed various building, vegetation, and vehicle models that would blend incorrectly with clouds.
• Fixed invalid materials in several vegetation models.
• Fixed issue that could vehicles to crash with jetways.
• Updated various airports including W24, KRCW, OMAW, CYUL, and WAVGV5.