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REX Atmos for 2024 released on December 29th.

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From REX:

"We are excited to announce that REX Atmos Core – Technical Update 1.0 will be released on Monday, December 29th in the afternoon.
In the meantime, the Beta version will remain fully operational. Once the update is available, we strongly recommend upgrading to ensure optimal performance and compatibility."
 

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  • Atmos CORE Tech Update 1.0 Changelog: FIXED – Full compatibility with Microsoft Flight Simulator 2024 SU4. Resolved multiple integration points affected by SU4, including environmental data off

  • Fromage_Flippant
    Fromage_Flippant

    people are just posting links to the rex atmos software\site, like its just been released. it has been out for months. what people are wanting is the latest technical build. it has not been released a

  • "FIXED – Custom weather rendering in Simple Mode. Corrected slider-based parameter translation and rendering callbacks." Really?  I have Atmos for 2024 and love it, but is it possible to ha

Finally, got a taste of Atmos before SU4 came out and have pondered whether I should install the beta in the meantime. Glad to see it's coming out soon!

  • Commercial Member

Atmos CORE Tech Update 1.0 Changelog:

FIXED – Full compatibility with Microsoft Flight Simulator 2024 SU4.
Resolved multiple integration points affected by SU4, including environmental data offsets, and API handshake behavior to ensure stable communication.

FIXED – Custom weather rendering in METAR Mode.
Addressed issues in the METAR parsing pipeline, including interpolation logic and fallback handling, preventing incomplete or partial scene generation.

FIXED – Custom weather rendering in Simple Mode.
Corrected slider-based parameter translation and rendering callbacks.

FIXED – Custom weather rendering in Advanced Mode.
Rebuilt several internal hooks responsible for multi-layer atmospheric rendering, improving fidelity and proper synchronization between volumetric clouds, and lighting.

FIXED – Required description field preventing preset saving and edit function.
Adjusted UI rules to allow preset persistence without unnecessary conditions.

FIXED – UI validation preventing the Save button from enabling.
Resolved conditional flag errors that interfered with save-state logic.

FIXED – GetLocalSettingsRead() not reading local settings.json.
Repaired the file read routine, corrected its directory resolution, and improved JSON parsing, ensuring user preferences load correctly at startup.

FIXED – Spelling correction of “Enviro” in the save dialog box.
Corrected text label.

ADDED – Startup Log System for application process verification.
Integrated a multi-stage logging pipeline that records initialization events, module load order, environment checks, and error flags.

ADDED – Simulator Runtime Validation.
Implemented a detection function to confirm whether Microsoft Flight Simulator is actively running. This ensures correct sequencing, prevents null-reference operations, and delivers safer startup behavior.

Tim Fuchs
Managing Partner
REX SIMULATIONS 

website:  www.rexsimulations.com
support www.rexaxis.com

"FIXED – Custom weather rendering in Simple Mode.
Corrected slider-based parameter translation and rendering callbacks."

Really? :huh:

I have Atmos for 2024 and love it, but is it possible to have some of these descriptions in plain English please?  :smile:

Rob (but call me Bob or Rob, I don't mind).

I like to trick airline passengers into thinking I have my own swimming pool in my back yard by painting a large blue rectangle on my patio.

Intel 14900K in a Z790 motherboard with water cooling, RTX 4080, 32 GB 6000 CL30 DDR5 RAM, W11 and MSFS on Samsung 980 Pro NVME SSD's.  Core Isolation Off, Game Mode Off.

a joke that this "changelog" took so long. What about the crappy interface ? 

Carsten U

3 hours ago, bobcat999 said:

"FIXED – Custom weather rendering in Simple Mode.
Corrected slider-based parameter translation and rendering callbacks."

Really? :huh:

I have Atmos for 2024 and love it, but is it possible to have some of these descriptions in plain English please?  :smile:

I think it’s the bug where it keeps the temp at 20

 
 
 
 
 
  913456
On 12/26/2025 at 2:22 AM, RTK1972 said:

a joke that this "changelog" took so long. What about the crappy interface ? 

Interesting. Too long? Core (beta) worked for Su4 beta for a really long time (and still does). Interface could use some work, sure.

7800+4090+64ram

Just Flight RJ, 146 and F28, Piper Arrows ---A2A Aerostar and Comanche---Black Square Starship, Duke(s), TBM, Bonanza/BaronV2, KingAir---FSReborn FSR500---COWS Da42---FX P180, HJet & VJet---FlySimWare Chancellor and LearJet---FlightSimStudio EMB175 &P2006T---Fenix 320---PMDG DC6, 737(700+900), 777---C22J---Milviz Cessna 310 & Porter---SimWorksStudios Kodiak, PC12, Zenith & RV14---BigRadials Goose---IndiaFoxEcho MB3339+F35.

 

I get a lot of cloud flashing on occasion when using Atmos.  I have been using it since SU4 Beta release came out and it seems shader related to me.  It usually lasts for 10-15 seconds and if I shut off Atmos while it is happening it stops.  I posted on the Discord but maybe I am the only one with the issue.  It happens with any of the presets I have used and one that I created.  It is pretty random and doesn't happen on every flight.  Not sure if there is one particular setting that causes the problem or not...

Eric

i9-12900k, RTX 5070ti OC, 32GB ddr5 5600 RAM, 2TB 980 Pro SSD, Titan 240RX AIO, Samsung CRG90 49", Win 11

4 hours ago, Flic1 said:

I get a lot of cloud flashing on occasion when using Atmos.  I have been using it since SU4 Beta release came out and it seems shader related to me.  It usually lasts for 10-15 seconds and if I shut off Atmos while it is happening it stops.  I posted on the Discord but maybe I am the only one with the issue.  It happens with any of the presets I have used and one that I created.  It is pretty random and doesn't happen on every flight.  Not sure if there is one particular setting that causes the problem or not...

Seen that flashing one time today. I am running the beta Atmos for SU4 and using just the Atmos and Enviro presets. 

Eric 

 

 

Atmos crashes every time in SU4 so far, so hope the update will improve things...

MS FS 2020/2024 | 9800X3D  | 64GB DDR5 6000mhz |  ASUS ROG ASTRAL RTX 5090 32GB GDDR7 OC EDITION   | Varjo Aero | Navigraph | VATSIM | TPR Pedals | Virpil  | Honeycomb | Winwing FCU + EFIS | Behringer X Touch Mini | SPAD.next

14 minutes ago, Rene_Feijen said:

Atmos crashes every time in SU4 so far, so hope the update will improve things...

This is extremely old news. 

REX released a beta version of Atmos that works/worked perfectly fine with SU4 Beta, and also with the final version of SU4.

Well, missed that then, reinstalled Atmos last week after long time away from the sim.

MS FS 2020/2024 | 9800X3D  | 64GB DDR5 6000mhz |  ASUS ROG ASTRAL RTX 5090 32GB GDDR7 OC EDITION   | Varjo Aero | Navigraph | VATSIM | TPR Pedals | Virpil  | Honeycomb | Winwing FCU + EFIS | Behringer X Touch Mini | SPAD.next

Not on Just Flight yet it seems. I guess I'll just have to wait until they update the installer?

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