unity - lights

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原创最新推荐文章于 2026-04-08 09:19:05 发布 411 阅读 AI 写同款· GEO 优化 ›

【unity】URP的shader开发中支持多光源，_ADDITIONAL_LIGHTS_VERTEX 和 _ADDITIONAL_LIGHTS 区别一般来说使用 _ADDITIONAL_LIGHTS_VERTEX，可能要优化一些，但是有局限性，平行光还好，针对点光源，面片比较大的模型就很奇怪了，这次就遇到这个问题，尝试地表接受一个点光源试试发现没作用，还以为代码没写好……项目里有一个其他同事实现的shader，美术那边希望能支持多个光源，我一看代码里面， frag 函数里已经实现了。要支持 _ADDITIONAL_LIGHTS_VERTEX ，（片元着色器代码上面有示例了，不贴了）当然单独加一个也是可以的。阅读详情

unity - lights

just like the real world ,in unity, we use lights to illuminate(照亮) our scenes. without lights nothing would be visible to the camera in our scene. Broadly(广义上) there are two types of lighting in unity, dynamic and baked(烘焙) lighting. 
Dynamic lighting is calculated in real time while our game is running.(当我们运行游戏的时候，动态光是实时进行计算的). This can be achieved simply by adding lights to our scenes.
Baked lighting is calculated offline and saved to a texture. These lighting texture maps are then applied to the baked objects in the scene for improved performance.

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