Environment Shaders 环境着色器

Environment mapping shaders are executed when a ray hits nothing and essentially exits the scene. They are used to give the impression of a 'wider world' outside the modeled area.
Redshift currently natively supports two environment shaders, a physical sun-sky model and a generic environment image projection.

环境映射着色器在射线没有击中任何东西并且基本上退出场景时执行。它们被用来在模型区域之外给人一种“更广阔的世界”的印象。红移目前本机支持两个环境着色器，一个物理的太阳-天空模型和一般的环境图像投影。