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Active Sky Cloud Art

Active Sky Cloud Art (ASCA) is a new kind of graphics add-on for Flight Simulator X (Boxed or SE) and Prepar3D that incorporates brand new technologies and content types to transform your skies and significantly increase realism, variation and dynamics.

The technology behind ASCA includes optional tight integration with Active Sky 2016 to enable features such as Real-Time Texture Dynamics, which allow you to manually change or have your textures automatically changed multiple times throughout a flight without the need to shut-down and restart your simulator! The variation experienced throughout a flight with AS16/ASP4 + ASCA is unprecedented, especially when flying through areas of varying weather conditions and severity. In addition, in ASCA's Full Dynamics theme, simultaneous variation of up to 8 different texture sets (128 cloud textures total) are provided including simultaneous texture resolution to provide increased performance for certain cloud types that don't require high resolution (such as overcast layers).

ASCA's graphical content includes replacements/enhancements for everything above the horizon: Cirrus clouds, Cumulus clouds, Stratus clouds, Thunderstorm clouds, Sky colors and Lighting. But in addition to the graphical textures, ASCA also includes something very different: Brand New 3D Cloud Structures, which replace and/or enhance nearly every aspect of the cloud scene within the simulator! Thunderstorms are bigger, overcast is more full, light "few" humilis-type clouds are more visually appealing, and all cloud scenes are specifically tuned to match the ASCA texture content and provide maximum realism.

A primary design focus for ASCA was performance. From solid overcast, to towering cumulonimbus, everything was designed for the best visuals with minimal performance sacrifice.  Careful 3D modeling of cloud structures and textures enables this, while creating realistic and unique variants of the real-world cloud types including stratus, nimbostratus, altocumulus, altostratus, cumulus humilis, cumulus mediocris, cumulus congestus, towering cumulus, stratocumulus, cirrostratus, cirrocumulus, cumulonimbus incus, cumulonimbus calvus and more.



  • ASCA has several game-changing features and fully integrates with AS16 or ASP4 for the ultimate in weather + visuals
  • ASCA can work with any weather engine (or default weather) but is designed for tight AS16/ASP4 integration - Dynamic texture loading requires AS16/ASP4


You asked, we listened! In addition now ASCA SP1 includes additional newly improved overcast models, 6 new soft-style cloud texture sets, 7 new hyper-natural sky color sets with improved high-altitude saturation, vibrance and brightness graduation, a new cirrus cloud set, reworked and improved original cloud sets and sky color textures, remapping of all associations and definitions, new UI-based weather influenced configuration, and a new Art Tools API are just a few things that have been added in ASCA SP1.  Improved overall resolution, better dynamics, new geographic selection influence, and more user options are also included.

You can now create your own custom content and make it ASCA and AS16/ASP4 compatible with full dynamics capability, with just a few clicks of the mouse - enjoying full weather and geographic profile selection influence. Currently, Sky Color textures are supported, and more categories are planned to be added soon.

We hope you'll agree that ASCA SP1 is a major step forward in the ongoing effort to provide the most realistic and dynamic weather visual experience possible.

REAL-TIME DYNAMIC TEXTURE LOADING - No need to shut down the sim: Clouds and sky can change instantly (user-initiated) or smoothly (automatic) and fully weather-influenced as desired in real-time for the ultimate in variation and realism (requires AS16/ASP4)

NEW 3D CLOUD STRUCTURES - A large assortment of new cloud models for all varieties and types of clouds are included!

SET IT AND FORGET IT - Choose a dynamic theme, activate it, and let AS16/ASP4 + ASCA do the rest

ADJUSTABLE FULL DYNAMICS OVERCAST RESOLUTION SETTING - You can now customize overcast to the resolution of your choosing.

ART TOOLS API - One of our newest additions to features is our Art Tools API which allows users to create and share their own ASCA/AS16/ASP4 content - Currently enabled for Sky Textures only

WX INFLUENCE CONFIGURATION - Get only the looks you want! The new Wx Influence Configuration utility (available via the Settings Screen) allows user to adjust Wx selection profiles and geographic profiles for all content.

HOW IT WORKS - While ASCA and AS16/ASP4 work great together, they are also fully compatible (either alone or together) with any other graphics add-on and weather add-on. You have full flexibility to mix and match any aspect and selectable feature set within these add-ons.


  • Windows Vista or later
  • Microsoft Flight Simulator X with SP2 or Acceleration OR FSX:Steam Edition OR Prepar3D v3 OR Prepar3D v4
  • ASCA works with both FSX and P3D platforms on a single license
  • 2GHZ processor or better
  • 2GB RAM or better
  • 1GB available hard drive space for standard resolution content
  • 2GB available hard drive space for optional HD resolution content
  • Minimum monitor resolution to access all user interface features: 1280x800
  • Requires an online internet connection for normal usage.  Online activation is mandatory.  License is valid for one computer/installation only. 
  • Moving software to another computer will deactivate the previous computer.  10 automatic reactivations are permitted.  Multiple-computer installations will require an individual ASCA license for each computer that it is installed on.


  • 3.0GHZ Processor or better
  • 4GB RAM or better
  • 5GB available hard drive space
  • Broadband high-speed internet connection
  • 1440x900 or better resolution

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