占坑
lightmapper有两种: Enlighten, Progressive
Enlighten:
baked GI 静态物体 离线烘焙
precomputed GI 也是适用于静态物体
F是预先计算的 light相关信息可以实时改变 更新有延迟 几帧后会更新完
性能和resolution有关
动态物体接受的来自静态物体的indirect light 用probe 模拟
可用于 skybox emissive light对周围环境的影响
Precomputed Realtime GI
- Create Geometry
- Layout Systems
- Create Systems
- Create Atlas
- Clustering
- Visibility
- Light Transport
- Tetrahedralize Probes
- Create ProbeSet
这个是Precokmputed realtime GI的计算流程,能看出来就是在算F 每个cluster的系数
probe要自己去放
The difference is that while lightmaps store lighting information about light hitting the surfaces in your scene,
light probes store information about light passing through empty space in your scene
light probe存的是光在空间中的路径上影响因子的比例 和cluster的f一个意思 只是没有hit
Progressive lightmapper
lightmaps
Light Probes with progressive update 渐进式更新 对实时gi都有一定程度的支持