ue-uds-clouds

Configure and troubleshoot cloud rendering systems in Ultra Dynamic Sky for Unreal Engine.

55|5|Updated Mar 26, 2026
One-click install
npx skills add https://github.com/kevinpbuckley/unreal-engine-skills --skill ue-uds-clouds-kevinpbuckley
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: ue-uds-clouds
Source: https://github.com/kevinpbuckley/unreal-engine-skills/tree/main/skills/ultra-dynamic-sky/ue-uds-clouds
Command: npx skills add https://github.com/kevinpbuckley/unreal-engine-skills --skill ue-uds-clouds-kevinpbuckley

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Ultra Dynamic Sky offers four mutually exclusive cloud systems plus shared movement, wisp, and light-ray layers, and choosing or tuning the wrong settings wastes GPU budget or produces visual artifacts. This Skill gives an agent the exact categories, settings, and recipes to configure clouds correctly in UDS. ## Core Features & Use Cases - Cloud system configuration: Tune Volumetric, Static, 2D Dynamic, and Voxel cloud modes, including altitude, scale, sample counts, second cloud layer, and per-mode authoring tools. - Cloud Painter, light rays, and looping: Paint localized cloud coverage with the Volumetric Cloud Painter, configure volumetric cloud light rays, and build seamlessly looping cloud movement for film renders via Cloud Phase keyframes. - Use Case: A user reports clouds looking dark and blurry during a time-lapse. The Skill directs the agent to check the directional light's Cloud Scattered Luminance Scale and switch the Volumetric Cloud Rendering Mode away from the long-trail default. ## Quick Start Use the UDS clouds skill to lower the volumetric cloud altitude and reduce GPU cost by switching to a Performance rendering mode.

Frequently Asked Questions about ue-uds-clouds

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I change cloud altitude in Ultra Dynamic Sky?

Set the Bottom Altitude setting in the Volumetric Clouds category rather than moving the UDS actor. Translating the actor breaks atmosphere and fog integration, while Bottom Altitude adjusts the cloud layer height correctly.

How do I reduce volumetric cloud GPU cost in Unreal Engine?

Switch the Volumetric Cloud Rendering Mode to a Performance variant, lower View Sample Scale and Shadow Sample Scale, disable Two Layers, and reduce Max High Frequency Noise Levels. Changing Sky Mode from Volumetric to Static or 2D is the largest single saving.

Why do my UDS clouds look dark or gray?

Dark clouds usually come from the directional light. If using a Custom Sun/Moon Light Actor, copy Cloud Scattered Luminance Scale exactly from UDS's built-in component, and remove any leftover directional lights from the level.

How do I make UDS clouds loop seamlessly for a cinematic?

Set Cloud Speed to 0, Cloud Direction to a single axis, Formation Change Speed to 1, and normalize noise scales and Macro Variation. Then keyframe Cloud Phase from 0 to 100 in Sequencer for a seamless loop.

Why does setting Cloud Coverage on UDS have no effect?

Ultra Dynamic Weather is in the scene and overrides cloud control. Set Cloud Coverage on UDW's weather state instead of directly on the UDS actor.

How do I paint local cloud coverage in Ultra Dynamic Sky?

Launch the Volumetric Cloud Painter from the Ultra Dynamic Sky toolbar dropdown with Sky Mode set to Volumetric Clouds. Painting data is stored in UDS Cloud Paint Container actors and committed to textures via Save to Textures.