Winter Weather brings a complete snow system to Unreal Engine with one actor and one material node: falling snow from a light flurry to a blizzard, snow that builds up over time and never lies under roofs, and footprints and tracks with real depth that refill while it snows.

Features

• Falling snow, light flurry to blizzard. One intensity value (0 to 1) with five editable presets drives flakes, haze, far snow curtains, fog, wind, wind sound, camera frost and the dimming of sun and sky.

• Build-up over time. Snow piles up on upward-facing surfaces, spreads from flat ground to slopes, plasters windward walls and melts when the snowfall stops.

• No snow under roofs. Roofs, eaves and porches are found automatically, with a soft drift edge. Trees get lighter snow underneath.

• A winter look on every outdoor surface. Grass turns straw, tops and ledges take frost and a thin dusting, and walls take a rime in a storm.

• Trails with real depth. Footprints form as the foot plants. In deep snow a character wades a trench with a low fog at the feet. Vehicles and objects press tracks: the demo has a rolling log. Everything refills while it snows.

• Deep-snow gait. A component slows characters in deep snow and changes their pose. You can adjust it or turn it off.

• Depth tiers. Flat, Medium (parallax), Deep (Nanite tessellation) and Auto, with automatic fallbacks on DX11, forward shading and VR.

• External mode. Keep your own sky and weather system; Winter Weather then adds only the build-up, the tracks and the roof detection.

• Blueprint control. SetSnowIntensity, SetSnowPreset, SetSnowDepth, ClearAllSnow, AdvanceWeather, Get/SetSnowState, SetDeepSnowGait, IsLocationSheltered.

Setup in three steps

1. Drop BP_WinterWeather in the level.

2. Add MF_WW_Snow to your ground material, or use the included landscape, ground, prop and foliage materials.

3. Press Play.

Included: a winter-valley showcase map with a hamlet, a playable demo map with an on-screen display (keyboard and gamepad), a map of labelled feature stations, a snow patch mesh, a snow blocker for caves and tarps, and full documentation.

Requirements: Unreal Engine 5.5–5.8. Windows; the Deep tier needs DX12 with SM6. No C++, no plugin to install, no config changes. Substrate is supported (5.7 and 5.8).

💬 Support & suggestions — Questions, bug reports and ideas: [email protected]. I read every message, and I try to implement the suggestions that fit the pack in a future update.