Global Illumination alternatives

[TriNityGER]

@;465560

I haven’t read someone mentions ‘Image-Based Photon Mapping’ (ISPM):
https://youtube.com/watch?v=GckOkpeJ3BYand more info here: http://graphics.cs.williams.edu/papers/PhotonHPG09/ (with source code)

As far as I understood:
-no need for voxelization, uses the actual polygonal mesh
-not view-dependent
-gives Global Illumination, Ambient Occlusion and Caustics with one solution

It is from 2010 but I think with todays hardware, dx12 and optimizations (doing the path tracing part on the gpu rather on the cpu as the paper proposes) this technique could be even more performant.

Quite interesting, would love to see this in UE4.