Light Propagation Volumes (LPV)
Note:
- First introduced in CryEngine 3
- It is real-time, not precomputed
- Does not consider visibility
Key Problem:
- Query the radiance from any direction at any shading point
Key Idea:
- Raidance travels in a straight line and does not change
Key Solution:
- 3D grid to propagate radiance
Steps:
Problem:
