剪影是一个蒙版,您可以将其放置在光源上,以创建具有特定形状或颜色的阴影,从而改变光源的外观和强度。Cookie 是一种模拟复杂光照效果的有效方式,对运行时性能的影响微乎其微。您可以使用剪影模拟的效果包括焦散、柔和阴影和光源形状。
要将剪影应用到 Unity 中的光源,请为 Light 组件的 Cookie 字段指定一个纹理。
Cookies may support different features depending on the render pipeline you are using. If you are using Universal Render Pipeline (URP) see the Light component reference for more information on using Cookies.
See render pipeline feature comparison for more information about support for cookies across render pipelines.
对于在 Unity 2020.1 或更高版本中创建的项目,默认在渐进光照贴图中为烘焙光源和混合光源启用烘焙剪影。对于在 Unity 2020.1 之前中创建的项目,默认在渐进光照贴图中为烘焙光源和混合光源禁用烘焙剪影。这是为了提供向后兼容。
您可以在 Editor settings 窗口中切换是否在渐进光照贴图中为烘焙光源和混合光源启用剪影。
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