通过__光照探针__可以捕获并使用穿过场景空白空间的光线的相关信息。
与光照贴图类似,光照探针存储了有关场景中的光照的“烘焙”信息。不同之处在于,光照贴图存储的是有关光线照射到场景中的表面的光照信息,而光照探针存储的是有关光线穿过场景中的空白空间的信息。
光照探针是在烘焙期间测量(探测)光照的场景位置。在运行时,系统将使用距离动态游戏对象最近的探针的值来估算照射到这些对象的间接光。
光照探针有两个主要用途:
光照探针的主要用途是为场景中的移动对象提供高质量的光照(包括间接反射光)。
光照探针的次要用途是在静态景物使用 Unity 的 __LOD(细节级别)系统__时提供该景物的光照信息。
将光照探针用于这两个不同目的时,需要使用的许多技术都是相同的。了解光照探针的工作原理非常重要,这样才能正确选择将探针放置在场景中的位置。
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.