Ok, not going to lie, was expecting Luxcore to handle my caustic needs, but switching to the engine changed everything, and screwed up my time schedule…it didn’t work. I didn’t have time to learn to implement it properly in Luxcore, and no time to learn the caustic reflections in Cycles…
So, I FAKED the caustics in Photoshop…so, this probably disqualifies me…and if so, I completely understand. But, at least you can see what it possible! 
Here’s to more Roger Deakins lighting design!!
Thanks and good luck!
