FAB - Ultra Dynamic Sky v9.5 (5.5 - 5.7)

Ultra Dynamic Sky is a flexible sky and weather solution for developers of games, simulations, visualizations, and offline rendering. Initial setup has drag and drop simplicity, and the system offers a wealth of customizable parameters and optional features to suit your project.

Features
Set a single Time of Day variable and every aspect of the sky updates along with it, making changing the time your scene takes place a one step process.
Fully dynamic, with customizable clouds, moon and stars.
A built in lighting solution with sun, moon and sky lighting all synced with the sky.
Adjust cloud coverage from a clear sky to overcast.
Animate a day/night cycle with a single click.
Multiplayer ready
Choose from volumetric 3D clouds, 2D dynamic clouds, static clouds, and even volumetric auroras.
A full weather system is included, Ultra Dynamic Weather, which adds rain, snow, lightning, and more to your scene in seconds.
Simple data driven tools for triggering changes to the sky and weather with game events
Enable Simulation features, which calculate the real world position of the Sun, Moon and Stars, using latitude, longitude, date and time.
A wealth of supplemental features for additional effects and functionality. Be sure to watch the product video for a full rundown.

Installation
Just put the UDS folder into the "Content" folder of your UE5 project.

v9.5 5-18-2026For UE:5.55.65.7
* Added a new sky mode, Voxel Clouds. This essentially renders the volumetric cloud layer as hard cubic voxels, for projects with stylized voxel graphics.
* Directional weather sounds will now make use of full 7.1 spatialization for surround sound
* Added a niagara system for a freezing breath effect controlled by temperature
* Added some more settings to the DLWE Interaction Settings data asset to allow more customization of interaction effects and sounds
* Added a material function to do a direct sample of the render target used for DLWE Snow/Dust trails, to help with implementing custom effects
* Added a link in the UDS Documentation utility to an online mirror of the docs which you can read in a browser
* Added parameters to the Dripping Static Mesh and Dripping Skeletal Mesh niagara systems to configure them to mask particle spawning using the vertex color sampled from the mesh
* Improved behavior of the Contrast adjustment in Basic Controls on UDS, to apply more consistently at different levels of brightness
* Added a movement effect to cloud wisps, so they can appear to move along with dynamic cloud layers. Enabled by default.
* Added an option for the tiling stars to move with Time of Day
* Exposed Indirect Lighting Intensity properties for the sun and moon directional lights in their respective UDS categories, also controllable by modifiers.
* Exposed properties on UDW to change out the Niagara systems and materials for all weather particles
* Exposed properties for the materials used by Screen Droplets, Heat Distortion and Screen Frost
* Added an option to disable clients periodically syncing with server's Time of Day
* Added logic to help avoid reflection issues from current engine bugs involving hardware RT reflections and Adaptive GBuffer Substrate
* Added an option the flatten out the atmospheric scattering for Simplified Color
Changed how UDS applies Half Rate Tick if used without UDW. It will now split its own tick logic between the alternating frames instead of leaving one unused. Fixed DLWE snow/dust trails occasionally being able to overlap the edge of their render target and create artifacts
* Fixed effects of custom weather behavior/sky modifiers not being fully disabled when exiting a Weather Override Volume applying them
* Fixed UDW not resuming when its contained in a streaming sublevel which is temporarily hidden.
Fixed Tracing Max Distance values applying at incorrect heights when using 2 cloud layers with a non zero Distance Between Layers Fixed rain splash particles not rendering when using SMAA in 5.7
* Fixed starting Volumetric Cloud coverage being set wrong when "Disable All Runtime Updating" is enabled
* Fixed an issue which could cause the caustics effect to have artifacts past the edge of the water level target
* Fixed behavior when "Transition Sky Light Intensity" is called with a transition time of 0.
* Fixed jittery behavior when scrubbing Time of Day slider in Onscreen Controls
* Fixed Time of Day animating forward when it shouldn't on a dedicated server
* Fixed clients joining game with a Change Weather transition in progress skipping to the end of the transition
* Fixed weather event dispatchers behavior on dedicated server