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SkyMaxx Pro v4[SMP 4.8.2]

 Want the best weather in X-Plane? Buy SkyMaxx Pro v4 and Real Weather Connector for amazing immersion! 

SkyMaxx Pro v4 - A revolutionary weather rendering engine for both X-Plane 10 and X-Plane 11!

X-Plane's most popular and best-selling add-on is back as version 4.0, and with some stellar new features!

Maxx-XP, in co-operation with Sundog Software, and X-Aviation are excited to bring you another game changing experience to the weather rendering in X-Plane 10 and X-Plane 11! SkyMaxx Pro v4 is an X-Plane cloud and sky replacement engine boasting all-new technology for X-Plane that it's almost like having an all-new sim!

NEW FSGRW Integration!: The FS Global Real Weather engine is now able to process a wide variety of cloud identifiers, such as Cirrus, Cumulus, Stratus, Cumulonimbus and Towering Cumulus. Cirrocumulus, Nimbostratus and Stratocumulus depiction in X-Plane 11 is planned for the near future. This detailed, cloud specific information is passed onto Real Weather Connector, allowing SkyMaxx Pro v4 cloud types and their corresponding cloud textures in X-Plane 11 to be correctly interpreted and drawn for different altitude levels, while at the same time FS Global Real Weather injects real-time wind data into X-Plane 11. This adds a highly sophisticated level of realism to the X-Plane 11 world, and greatly enhances the immersive environment for both low-level GA flyers and high-altitude airline pilots.

Quick Facts: Typically runs faster than X-Plane's default clouds but looks better, double the draw distance compared to SkyMaxx Pro v3 with vast performance increases, introduces 3D precipitation, stratiform clouds, crepuscular rays, clouds aloft with wind speed, truly 3D clouds. VR compatible too!

Developer: Maxx-XP
Download Size: 120MB

How SkyMaxx Pro works
SkyMaxx Pro is a plug-in that disables X-Plane's cloud and weather rendering engine, then replaces it with the SkyMaxx Pro version of weather. It takes weather data from the already existing X-Plane weather menu that you are used to, so there's nothing new to learn. What you gain are some amazing visual effects at almost no performance hit! In fact, most of our test team showed that when running default X-Plane clouds vs. SkyMaxx Pro clouds, SkyMaxx Pro had better frame rates over the default X-Plane clouds!

New features in Version 4.0:

Designed to work with both X-Plane 10 and 11!
- Code is implemented in SkyMaxx Pro v4 to know whether you are running X-Plane 10 or 11. Depending on which version, SkyMaxx Pro auto adjusts for the version of X-Plane you are running!

Double your maximum cloud draw area compared to SkyMaxx Pro v3!
- Big performance improvements allow clouds to be drawn across an area up to 320 km across surrounding your plane. Go ahead and crank up SMP's cloud draw area setting and achieve fast, realistic scenes at FL300 and above.

New 3D precipitation system!
- The new precipitation system represents rain, sleet, wet snow, and dry snow - as well as mixed precipitation that responds automatically to the ambient temperature. Precipitation is even lit by your landing lights! And a whole new precipitation control panel lets you tweak its appearance to your own liking.

Precipitation is tied to individual clouds
- Rain will start and stop realistically as you fly underneath or through the clouds

All-new "HD Cloud Puffs" overcast representation!
- Fly through large, thick overcast layers built from real HD cloud photos, without killing your framerate. Overcast clouds have never looked so good from above and below.

Integration with SoundMaxx
- Lightning effects in SkyMaxx Pro 4 will trigger 3D positional thunder sound effects when SoundMaxx is installed

Lots of extra polish
- Higher-resolution scattered and broken cumulus clouds, with twice the resolution as SMP3
- Cirrus and cirrocumulus clouds now move realistically relative to your plane's motion.
- Works better than ever with Real Weather Connector: more accurate representations of ground fog, thunderstorm placement, and stratus/overcast cloud placement when used with RWC.
- Adjusts lighting on distant cloud puffs at night

Highlighted Features
  • Lens Flare
  • Cloud shadows
  • Clouds aloft with wind speed
  • Crepuscular rays
  • Full 3D Clouds
  • Stratus and overcast cloud layers may now be represented by thick, volumetric clouds.
  • Extends all the way to the horizon
  • Both solid and broken stratiform representations
  • Advanced lighting model with real Mie scattering and fogbows!
  • Realistic in-cloud effects for convincing IFR landings and takeoffs
  • Simulated scud layer
  • Real simulation of single, double, and multiple scattering of sunlight and moonlight through the clouds
  • 3D volumetric cloud layers adjustable up to 320KM wide
  • Uses "dynamically generated imposters" technology to keep frame-rates up
  • Convincing high-altitude weather for jetliner pilots
  • Soft cloud / terrain blending
  • Adjustable soft blending of any cloud type with terrain
  • Makes for gorgeous ground fog, or clouds surrounding mountaintops!
  • Lightning effects in SkyMaxx Pro 4 will trigger 3D positional thunder sound effects when SoundMaxx is installed
  • Integrates seamlessly with the X-Plane weather menus

Compatible With
  • X-Plane 10 & 11
  • Mac & Windows. No Linux.
  • VATSIM - xsquawkbox
  • NOAA Weather Plugin 
  • X-Plane Real Weather Download
  • FSGRW (Advanced integration when paired with Real Weather Connector)
  • Active Sky XP (ASXP) when using Real Weather Connector
  • ...And many more!

Why should you get it?
SkyMaxx Pro will literally change the way you see the world in X-Plane, and has four years of development experience in the X-Plane world. It brings the entire simulator to a whole new level of realism. Do you want better X-Plane clouds that really look like clouds and give you a better feeling of really being there? Do you want to see the rays of the sun hit the clouds, and watch pockets of sunshine shine through like they do in real life? Do you want to see clouds that move like they should? Do you want full control of your sky colors? If these questions all interest you, then SkyMaxx Pro is for you! It is an amazing add-on for X-Plane with no learning experience, a very quick install, and a beautiful change to your X-Plane world. Get it today!



  • by Oscar Caravaca Martinez

    Date Added: Monday 02 December, 2019

    [5 of 5 Stars!]
    The best addon so far I have seen for clouds, with no doubts, and a community very active as well as..
  • by Dragon windows

    Date Added: Monday 18 November, 2019

    [5 of 5 Stars!]
    Two days ago, I wanted to spend on x plane add-ons with a budget of 70€, I was almost buying xEnviro..
  • by jeffrey leh

    Date Added: Wednesday 22 May, 2019

    [5 of 5 Stars!]
    After many years of updating SMP, I have to say, you knocked 4.8 out of the park! FPS are spot on an..
  • by Alex Woolf

    Date Added: Sunday 14 April, 2019

    [5 of 5 Stars!]
    Clouds are good. I would like to have the same interesting cumulus as in UWXP.
  • by David Foster

    Date Added: Thursday 07 February, 2019

    [5 of 5 Stars!]
    This is the best looking and most accurate weather environment I've found. With FSGRW and Real Weath..
  • by Rafał Mikoda

    Date Added: Wednesday 09 January, 2019

    [5 of 5 Stars!]
    Great piece of developer's art. Truly must have for all long time flysim enthusiasts. Be sure to inv..
  • by Dion Woods

    Date Added: Wednesday 03 January, 2018

    [5 of 5 Stars!]
    The difference between vanilla x-plane and this is amazing. Feels so much more official now with thi..
  • by Juan Lozano

    Date Added: Monday 27 November, 2017

    [5 of 5 Stars!]
    Excellent product!. X plane 11 runs smooth and looks so real!
  • by Fábio de Souza Gonçalves

    Date Added: Wednesday 25 October, 2017

    [5 of 5 Stars!]
    This changed my flights for better! Before, i couldn't fly with clouds, default clouds are problem f..
  • by Juan Gonzalez

    Date Added: Sunday 27 August, 2017

    [5 of 5 Stars!]
    Now with this new update, i love this program more.. now i can see this beautiful towering clouds.. ..
  • by Krisno Pryosusilo

    Date Added: Saturday 26 August, 2017

    [5 of 5 Stars!]
    SMP 4 (currently version 4.6) is amazing! The SkyMaxx Pro team have outdone themselves. I used vers..
  • by Thomas Williams

    Date Added: Wednesday 17 May, 2017

    [5 of 5 Stars!]
    SMP really does change the way you fly in X-Plane. As a student pilot, I absolutely adore how the di..
  • by paolo tome

    Date Added: Tuesday 21 February, 2017

    [5 of 5 Stars!]
    wonderful in XP11 !!! run smoothly and look amazing Many many thanks Paolo
  • by Matt Fox

    Date Added: Friday 10 February, 2017

    [3 of 5 Stars!]
    Just OK. Clouds don't look very realistic since they don't extend very far in the distance. Not a hu..
  • by Sigurdur Steindorsson

    Date Added: Wednesday 25 January, 2017

    [4 of 5 Stars!]
    I like SkyMaxx Pro very much. This is much better then the default weather in X-plane. There is one ..
  • by Jason Swango

    Date Added: Sunday 25 December, 2016

    [5 of 5 Stars!]
    The clouds look fantastic! I'm a real world pilot who uses flight sims to stay fresh, and these clou..
  • by JOHN LIN

    Date Added: Saturday 24 December, 2016

    [5 of 5 Stars!]
    The effect is great I like it! It's great to buy this plug-in.
  • by Jose Rodriguez

    Date Added: Thursday 22 December, 2016

    [5 of 5 Stars!]
    An amazing improvement to previous versions. This has completely changed my flying experience with X..
  • by Kris Crecco

    Date Added: Thursday 22 December, 2016

    [2 of 5 Stars!]
    Honestly, I see very little difference between v3 and v4. Not only that, but the clouds are still ju..
  • by Edwin Sanabia

    Date Added: Thursday 22 December, 2016

    [5 of 5 Stars!]
    SkyMaxx Pro V4 is the best of the series by far. The clouds look amazing and flying through now look..

    Date Added: Tuesday 20 December, 2016

    [5 of 5 Stars!]
    Did a long GA flight at about FL120 and it looked fantastic. FPS was fine and the clouds looked grea..
  • by torok ludovic

    Date Added: Monday 19 December, 2016

    [5 of 5 Stars!]
    run smooth on mac xp11 thanks, excelent work merry christmass and a happy new year to you
  • by Ted Max

    Date Added: Sunday 18 December, 2016

    [5 of 5 Stars!]
    I have been using SMP since v1. To be frank I was a bit disappointed with the frame rate when 3.0 ca..
  • by feli scia

    Date Added: Sunday 18 December, 2016

    [5 of 5 Stars!]
    Great job guys! A bit expensive but worth the money! Compliments!
  • by Jan Jirouš

    Date Added: Sunday 18 December, 2016

    [5 of 5 Stars!]
    Excelent and must have product for XP11! I'm very happy with my FPS - it has almost no impact on my ..
  • by Steaven McKenzie

    Date Added: Sunday 18 December, 2016

    [5 of 5 Stars!]
    Hands down this has changed the way I fly. I can say with confidence that until my recent experience..
  • by louis trahan

    Date Added: Sunday 18 December, 2016

    [5 of 5 Stars!]
    I can say just by flying with these for an hour it has excellent clouds and skies!! this is far bett..
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