Fast Stylized Procedural Sky

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

  • Supported Platforms
  • Supported Engine Versions
    4.18

Description


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.


[Showcase]

[Documentation]

[Tutorial]

[Forum]


Features:

  • GPU friendly, works efficiently even on VR/Mobile. Unlit material without blending, uses one draw call
  • Over 60 parameters to customize
  • Clouds lighting with scattering and shadows changes depending on sun position
  • Static background clouds and stars layer
  • 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
  • Updated by curves/manual settings and blueprint functions
  • Wind direction and clouds speed
  • Smooth transitions between weather states based on preset system
  • Landscape backgrounds interleaved with clouds
  • 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  • The material is based on the new unpublished before method for fast calculation of procedural clouds lighting.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


Package:

  • Sky material shader (ONLY 150 instructions! and ONLY 4 texture samplers used!)
  • 1 blueprint that uses material and implements time of day and preset system.
  • 1 static skylight cubemap recapture helper blueprint.
  • Sky shadow material.
  • Skydome and Skysphere mesh.
  • 10 tilled clouds textures 512x512 with encoded four depth traces on channels.
  • 1 Moon normal map texture 512x512
  • 1 Background equirectangular texture 2048x1024 (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 Landscape backgrounds textures 4096x1024 for skydome (depth encoded as alpha)
  • 1 Landscape background textures 4096x2048 for skysphere (depth encoded as alpha)
  • 4 example static cubempaps generated for default skylight.


Limitations:

  • The material is not based on volumetric principles, the rendered sky is flat with the illusion of depth based on shading so the best results you will get from the ground.
  • The sky is non-realistic/nonphysical based but there is a lot of options to tweak the results to make it look reliable.

Roadmap:

  • Network replication.
  • Scalable day and night duration.
  • Particle emitters in weather preset.


Ready for requests. Remember that your positive rate and comments is are fuel for the next update.

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