The weather engine is the underlying platform that dictates all of the weather processes in REX 2.0 and FSX. Named the Intelligent Synoptic Weather Processor or ISWP for short, the ISWP is used in all areas of Real Environment Xtreme 2.0.


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Rex weather engine

    • What is the Intelligent Synoptic Weather Processor?


      It is a completely re-defined process that further expands on the original weather processes in REX 1.0 and takes them to a newer level of detail. Included are the same features in relation to configuring synopic, meso, and micro weather features, but the ISWP now interacts and allows the user more flexibility in setting visibility smoothing features and weather update smoothing features.

      This is not just limited to current or archived weather data processing, but now it is further expanded to rather robust custom weather theme generator.

      Thus, if the weather is boring where you live or normally fly you can have the ISWP create a unique weather theme that covers all seasons and various level of severity at the click of a button.


      The ISWP now looks at over 20 different weather data elements to determine the best weather conditions and influence in the Flight Simulator environment.

How the Iswp Affects Textures

    • In REX 2.0 the ISWP now influences ALL textures, even down to what type of asphalt or concrete textures that matches wet surfaces for light to heavy precipitation.

      This gives Flight Simulator an even more realistic look and feel. Now the feeling of being in an immersed weather environment goes beyond just what type of clouds are going to be in the sky.

      Later, in further expansion to the ISWP it will be able to use special effects to further enhance your ride on the ground or sky.

ISWP and the flight planner

    • In the past we had a rather simplified flight planner. Taking ideas from real life flight planners, we have integrated the flight planning tools along with our ISWP platform to give the user a greater flexibility to dodge severe storms that might be in your path. Thus, while looking at the 20 different weather elements we can give the user a greater detailed view of the weather before you fly.

ISWP and the wasys

    • We have now moved the WASys and integrated the ISWP into the REX weather engine. Thus, if you have mutliple screens you can view the WASYS as you fly and keep an eye on the weather.

      Also, with the ISWP the weather conditions are more true to life, giving the user control over weather influence ranges and maximum visibility smoothing features not only horizontally, but also vertically.

      With the ISWP now using over 20 weather data elements we can give far greater detail to the weather in Flight Simulator.

      You can count on us to further expand this process in the future.