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Precomputed Atmospheric Scattering

A2K - 2019/04/26
4
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Physically accurate atmosphere rendering

  • 支持的平台
  • 支持的引擎版本
    4.21 - 4.22
  • 下载类型
    引擎插件
    此产品包含一款代码插件,含有预编译的二进制文件以及与虚幻引擎集成的所有源代码,能够安装到您选择的引擎版本中,并根据每个项目的需求启动。


Video: https://www.youtube.com/watch?v=LS5P5AYXT1Y


This is an original implementation of the state of the art atmosphere rendering algorithm. Optimized for highest possible visual quality.

  • Easy to use: simply add an atmosphere actor to your map and tweak it's properties.
  • Customizable: easily create any type of atmosphere: Earth, Mars, Venus, Titan - anything!
  • Supports any number of custom density layers
  • Supports multiple planets rendered at the same time

The algorithm computes 4-dimensional lookup tables using large number of samples (configurable, default: 256) and uses them for rendering instead of sampling the atmosphere density in real time. This produces realistic sky colors very close to real life. The lookup tables can be computed in editor and saved to a texture to be used in runtime.

Includes two rendering implementations:

  • Post processing effect which is easy to add to any game
  • Sky dome and ground material function

技术细节

  • GPU accelerated lookup tables computation
  • Implemented in Materials using as few custom nodes as possible
  • Supports 16-bit and 32-bit float lookup tables
  • Configurable 4D lookup table size (default: 32x128x32x32)
  • Highly optimized render materials


Number of Blueprints: 13

Number of Meshes: 2

Number of Materials: 13

Number of Material Functions: 37

Supported Development Platforms: All

Supported Target Build Platforms: All

Example projects: 4.21, 4.22

Includes two maps: Earth-sized planet with Denali National Park landscape (textures included) and Solar System with Mars and Earth orbiting around the Sun.

Join Discord for tutorials and support: https://discord.gg/75rRR5s