Fast Stylized Procedural Sky - UE4 (VR,Mobile)

Documentation: http://imaginaryblend.com/2018/06/26/fsps/

Well, optimized dynamic sky material and advanced weather system. Excellent choice for stylized games.

Fast Stylized Procedural Sky is a unique dynamic sky material and advanced weather system that is perfectly balanced between quality and efficiency. Designed and optimized specially for Mobile, Virtual Reality, and stylized PC/Console games.

Features

• GPU friendly works efficiently even on VR/Mobile. Unlit material without blending uses one draw call
  
• Over 60 parameters to customize
  
• Network replication supported
  
• Clouds lighting with scattering and shadows changes depending on sun position
  
• Clouds shadow casting, height fog, and static and dynamic skylight cubemaps
  
• Configurable sun and moon, lens effect, eclipse and stars scintillation
  
• Atmospheric sky gradient with tilting in sun direction
  
• Customizable automatic clouds UV calculation
  
• Moon normal-mapping and lighting calculated based on relative sun and moon position
  
• Time of day curves and advanced preset system
  
• Multilayered clouds
  
• Wind direction and clouds speed
  
• Smooth transitions between weather states based on preset system
  
• Landscape backgrounds interleaved with clouds, static clouds and stars layer
  
• Skydome and skysphere mode

The material is based on the new unpublished before method for fast calculation of procedural clouds lighting. You will not find this solution anywhere else!

Technical details

Sky material (ONLY 150 instructions! and ONLY 4 texture samplers used!)

Directional light shadow material.

• 1 blueprint that uses material and implements time of day and preset system
  
• 1 static skylight cubemap recapture helper blueprint
  
• 1 Sky shadow material
  
• 3 Skydome and Skysphere meshes
  
• 10 tilled clouds textures 512×512 with encoded four depth traces on channels
  
• 1 Moon normal map texture 512×512
  
• 1 Background equirectangular texture 2048×1024 (R-stars, G-Background clouds, B-Distortion clouds)
  
• 8 Color curves for simulating the day and night on Earth
  
• 12 presets of weather (sunny, cloudy, foggy, snowy, smoky, stormy, clean, rainy, half sunny, gloomy, blizzard, overcast)
  
• 3 time of day presets
  
• 3 Landscape backgrounds textures 4096×1024 for skydome (depth encoded as alpha)
  
• 1 Landscape background textures 4096×2048 for skysphere (depth encoded as alpha)
  
• 4 example static cubemaps for default skylight