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As part of the REX 5 family of products, Sky Force 3D adds true dimension and atmospheric immersion due to its complete overhaul of the weather, texture, effects, weather ambient sounds and cloud model SDK.


Best Of 2018!

"I rate Sky Force 4.80 out of 5. This truly gave me an exceptional added flight simulation experience. Thank you for creating this amazing addition for the flight simulation community - Keep up the excellent work!"
– Ray Andersen,


Platinum Award!

"REX has a habit of reinventing one's flight sim experience and with Sky Force 3D they’ve once again pushed the boundaries to the limit."
– Jessica Bannister-Pearce, PC Pilot Magazine


Stay updated on the latest developments and product information.

The clouds in the simulator are modeled in 3D, just like the aircraft you fly.

Over 3000 cloud models included, such as altocumulus, stratocumulus, humilis, mediocris, congestus, tower cumulus, cumulonimbus calvus, stratus, nimbostratus, altostratus, cirrus class, cloud streets, super cells, wall clouds, funnel, shelf, rain shaft and tornadoes.

  • Sky Force dynamically syncs 3D cloud models in real-time during flight to match current metar. 
  • Rain shafts added to calvus and incus cumulonimbus clouds of various intensities. Wall and shelf clouds included. In appropriate circumstances these will include funnel clouds and tornadoes.
  • The sim will now be able to implement soft and more robust detailed clouds structured together within the same session.
  • We have fixed the upside down clouds in-sim. Cloud models and textures are correctly and accurately displayed. 
  • Cloud repitition greatly reduced .
  • Our weather engine takes full advantage of the Sky Force SDK. (Sky Force is compatible with all weather engines)
  • Weather profiles are built ON our servers. Offsetting the work to our servers reduces the performance hit on your machine. 
  • Quadruple the amount of cloud variants, allowing more variety during flight. 

Natural, photo-based sky environments.


VBlend - Vaporous Skies

New techniques create a smoother, realistic and natural sky color blending at dawn and dusk. With VBlend and Vaporous Skies, we have achieved more realistic horizontal and vertical day, dawn and dusk fog generation and sky visibility blending.

Sun & Atmospherics

The sun atmospheric rendering special effects are extremely cinematic and will be noticeable through the virtual cockpit, creating even more realism. Sun atmospheric rendering coupled with HDR elements included for use in Prepar3D.

Sky Textures

Also included is our powerful 10-day cycle sky textures category. When the Sky Force 10-Day Cycle is installed, the simulator will dynamically load a different sky color transition from sunrise through sunset each day!

Photo-based, natural environment textures, effects & weather ambient sounds.

20GB of natural, photo-based environment textures. Complete cloud system textures, natural sky textures, cinematic sun & atmospheric effects, moon phase textures, lightning/thunderstorm special effects and weather ambient sounds. Standard to high-definition choices.


Stay updated on the latest developments and product information.

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