REX Atmos Core MSFS

Total atmospheric control for MSFS 2024! Real-time, engine-level atmospheric, weather, light, and color tuning.
Atmos CORE is a next-gen atmospheric engine for MSFS 2024 that injects changes directly into the simulator, not a post-process filter. Tune live weather depiction, atmospheric scattering, particulate haze, lighting, and global tone in real time, with immediate visual feedback. Modular editors (Weather, Atmosphere, Enviro) and robust preset management let you save, share, and autoload looks across devices. Works with Asobo Live Weather, presets, and ActiveSky FS.

Atmos CORE gives you total control over MSFS 2024’s weather, atmosphere, and environmental lighting, live, in real time. Unlike ReShade/NVIDIA-style filters, CORE operates inside the simulator, injecting physically-based changes at the engine level so the world responds naturally to conditions. Use Live Weather Depiction & Visual Tuning to finetune how real-time weather is rendered. Sculpt the sky with adjustable Rayleigh parameters, scattering height, and phase functions; add realistic haze, dust, or fog via the Particulate Simulation Engine; and precisely balance color and tone with Enviro’s RGB controls. Save, share, and autoload presets with secure local + cloud storage for easy migration. Compatible with Asobo Live Weather, saved/imported presets, and ActiveSky FS, plus upcoming integration with REX Weather CORE. Designed to be safe and nondestructive: exit or reset to revert the sim to default instantly.

Key Features

• Engine-Level Control: Injects changes directly into MSFS 2024 (not post-process).
• Real-Time Rendering: Immediate visual feedback while you adjust.
• Live Weather Depiction & Tuning: Control how live conditions are visualized via Weather Impact Modes.
• Modular Editors: Weather, Atmosphere, Enviro.
• Advanced Atmospherics: Rayleigh RGB, scattering height, phase functions, horizon behavior.
• Particulate Simulation: Haze, pollution, dust, mist, dry heat, fog.
• Precise Lighting/Color: Global tone + ambient tint with per-channel locks.
• Preset Management: Save/share, autoload at launch, local + cloud backup.
• Compatibility: Works with Asobo Live Weather, custom presets, and ActiveSky FS.
• Future-Ready: Planned dynamics and REX Weather CORE integration.
• Non-Destructive: Reset or exit to restore default visuals.

What It Is / What It Isn’t

• Is: A real-time, physically-based system inside MSFS 2024 that changes weather/atmosphere/lighting at the core level.
• Isn’t: A surface-level post-processing filter like ReShade or NVIDIA Freestyle.

FAQ

• What is Atmos CORE? A real-time atmospheric, weather, and environmental engine for MSFS 2024 with full visual/physical control at the sim core.
• Does it support Asobo real-time weather? Yes, plus presets and ActiveSky FS.
• Compatible with other add-ons? Yes.
• Can I create/share scenarios? Yes – save, share, and download via in-app cloud.
• Internet required? Yes.
• How is this different from ReShade/NVIDIA filters? CORE runs inside the sim with physicsdriven visuals filters can’t match.

• Microsoft Flight Simulator 2024
• OS: Windows 10 / 11
• Rendering: Compatible with DX11 and DX12
• Weather Sources: Asobo Live Weather, saved/imported presets, ActiveSky FS
• Internet: Required for installation, registration, and operation

Performance Note
Designed for smooth performance; brief pauses may occur when moving sliders while the sim applies changes, then FPS stabilizes.

If you have already purchased REX Atmos (MSFS 2020) in the Aerosoft Shop, the following upgrade option is available (50% OFF):

• REX Atmos MSFS 2020 › REX Atmos Core MSFS 2024:
  DL › $7.25 (Price may deviate depending on your local sales tax [VAT])

Just add the product to the shopping cart and the discount will be automatically deducted. To do this, you must be logged in to your customer account you used to previous purchase of REX Atmos.

Technical Update 1.0:

• 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.