€ 29.46




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    Compatible only with Prepar3D v4.4, v4.5. 

    This product is not currently compatible with Prepar3D v5.

    Manage, Adjust or Automate – Everything!

    Real-Time (on-the-fly) Dynamic Living Environment
    Real-Time (on-the-fly) Advanced Shader Processor
    Compatible with all other add-ons!
    Optimized for REX 5 - Sky Force 3D

    On The Fly Dynamic Living Environment and Atmospheric Utility

    Includes live cloud and sky texture sync technology and our new real-time advanced shader processor and in-sim interface for live tweaking and saving capabilities.

    Real-Time Environment Simulation Automation and Tweaking Flexibility
    Enjoy instant, on the fly visual feedback, whether you are tweaking the sim to your liking or allowing Environment Force to automatically adjust the environment for you... all while the simulator is running.

    Live in-sim environment shader tweaking
    • A convenient and powerful in-sim shader tweaking utility is also provided with the ability to save your creations
    • You can even use your other shader tools without the need to re-open your sim, as Environment Force recompiles shaders on the fly
    • User-controlled cloud formation and dissipation control, cloud coloring, visibility and fog control, scene and cloud lighting, terrain shading, water appearance control, water, and terrain coloring, 3D clouds / cirrus clouds / sky texture sync

    Living dynamic weather and smooth environment changes for all weather engines, including REX Sky Force 3D, Active Sky, Opus, FSGRW, FSXWX and REX Essential Overdrive.
    • Witness weather smoothly change over time
    • The world changes its atmospheric and terrain properties depending on weather
    • Automatic cloud morphing, scene, and cloud lighting, environment shading, water control, 3D clouds / cirrus clouds / sky texture sync

    New, Non-Destructive API
    The API works on the simulator run time layer and does not change any of the core framework of the simulation.

    Choose to Control or Automate
    With Environment Force, you can now control the key weather and environment features in real-time, such as Cloud morphing, sky, and cloud coloring, sky and cloud texture swapping, visibility, water coloring and shader control, terrain and object coloring, and cloud / water / terrain / object / scene lighting. Or you can simply set it and forget it, with the smoothing controls for all weather parameters AND weather engines.

    Breaking the Paradigm
    Accomplish a living environment controlled in real-time, on-the-fly giving instant visual feedback.

    Different Modes of Operation
    You can enjoy tweak-free operation known as Automation Mode. This mode allows Environment Force to automatically control and change key environment visuals on the fly, in real-time as dictated by real-world weather. Or adjust visual settings in real-time within the simulator via the in-sim mini UI modal window. Manual Mode will allow you to take control of key environment elements and shape your environment to your liking. Adjust more visual settings in real-time within the sim via the in-sim mini UI modal window.

    Living dynamic weather and environment changes for all weather

    • Automatic or manual cloud manipulation and morphing
    • Automatic or manual cloud morphing
    • Automatic or manual cloud coloring
    • Automatic fog smoothing
    • Automatic or manual scene lighting
    • Automatic or manual cloud lighting
    • Automatic or manual environment shading control

    In-sim mini user interface included for greater control of effects
    • Automatic or manual water appearance control
    • Automatic or manual environment coloring control
    • Automatic or manual water and terrain coloring control
    • Automatic or manual 3D cloud texture sync
    • Automatic or manual cirrus cloud texture sync
    • Automatic or manual sky texture sync
    • Community-based cloud server to upload and share presets

    Cloud Component
    When using a real-time weather engine, this component provides more accurate properties to clouds as they dynamically transition on the fly.

    Live Mode Automation
    You can enjoy tweak-free operation known as Automation Mode. Customize to your liking.

    Live, On The Fly Sky and Cloud Texture Sync
    Load cloud and sky textures live on the fly or allow full automation dynamics. Requires Sky Force or Texture Direct. We are currently working on an API for use with other texture add-ons.

    Smooth Weather System Transitions
    With Environment Force you will be able to experience smooth weather system transitions with ALL weather engines as clouds and weather will smoothly transition in and out over time.

    Tight Integration With REX Sky Force 3D
    The Environment Force API integrates with REX Sky Force 3D. If you have Sky Force, Environment Force will utilize its weather features for the ultimate in smooth weather and visuals.

    Environment and Weather Synchronization
    With the power of two components from the Environment Force API, the environment will transition and respond to weather conditions live, on the fly. If the conditions become stormy, clouds change in structure as well as terrain coloring, sky colors, and water functions change in unison. In short, the flight simulator experience is no longer static... it lives!

    Simconnect Independence and the Future
    One of the major benefits of our new Environment Force API is that it's COMPLETELY independent of the often flawed Simconnect platform. Our new Environment Force API not only offers great performance, it also allows us to continually advance and broaden the API for future features.

    Friendly and Easy to Use
    Enjoy a friendly and easy to use, feature-packed application user interface.

    Built-In Community Preset Sharing
    On the fly preset sharing allows you to quickly get set up with your favorite tweaks from your friends or content creators. Select a preset while the sim is open, click INJECT and voila!

    Environmental Life Technology
    Currently, the weather and environment remain static, even with real-time weather engines. Environment Force now gives life to a stagnant experience, as the sky and clouds now morph and smoothly transition over time and are always changing in density, size and atmospheric coloring... all in real-time.

    Plays Well With Others
    Compatible with all-weather engines, texture/graphics, and shader add-ons out of the box.

    Built-In Auto Update
    The built-in auto-update technology allows REX Simulations to quickly, effectively and effortlessly deliver updates to our customers.

    No refund, credit or replacement of any kind is available for download products. It is your responsibility to transfer your purchased download products from our servers to your computer. Considering the technical nature of the internet, REX Game Studios will make every effort to resolve any issues you may have while attempting to download your products to ensure successful delivery.


    Flight Simulator Compatibility:
    - Prepar3d v4.4, v4.5 only
    Operating System:
    - Windows 7 or greater
    RAM Memory:
    - 8GB or greater
    Hard Drive Space:
    - 30GB of free space for installation
    Video Card:
    - DirectX 11
    - Required for registration and community sharing of themes


    Total Reviews


    Average Rating


    5 Stars
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    1 Star


    Excellent tool, especially in connection with skyforce.


    What can u say for REX? Excellent product, perfect visuals, very good performance. In the end, many ways to customize your views.

    Jan Kenneth

    A must to have for prepare3d. as real as it gets with skyforce.


    A very interesting addon, quite innovative, the visual improvements are really impressive. The best part is that it doesn't have a significant impact on performance, a very smooth experience. Totally recommended.


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