I’m starting to investigate light field rendering, partly out of curiosity, and I’m wondering if anyone has done any experiments in UE4 yet? I’m still in the discovery phase and trying to learn the math and concepts behind the technique.
If you are wondering what a light field is, think of ray tracing, except you already have all the photons stored and compressed in textures, allowing you to reconstruct a 3d scene from a simple set of lookups on the gpu. So it is very efficient. It’s pretty incredible actually. Here is an example done in Unity: