Thanks for that video. Pretty cool stuff! I have a good deal of experience working GI simulations and how it reacts on earth, but how light bounces and reacts in space is still new to people as a whole. It makes sense that based on the materials whether that is equipment, spacecraft, a spacesuit and a moon's surface there would still be bouncing light in space. This is great because artistically having a fill light source generally makes for a better visual.
Now regards to indirect lighting solutions in real-time. This is one of those topics that there are a lot of factors that are required to check out before any production title can implement such a feature. While we have seen a good handful of demos demonstrating tech such as voxel cones, the performance just hasn't been their yet. Being this is not a screen space effect the ms required for the calculations and rendering fluctuates based on the intensity of the scene. Most games have pretty intense scenes. Potentially millions of polygons, thousands of objects and a ghastly amount of draw calls. Which even with voxel cones producing pretty efficient numbers on modern day cards it usually doesn't factor in a realistic scenario that would actually be in a shipped game. Then the real killer is the resolution. The efficiency plummets when the resolution gets bumped up. When Unreal was previously doing heavy Voxel R&D two years ago it was arguably only feasible, meaning an acceptable frame rate for a full production game factoring in everything that would normally be in a scene, in a fairly empty scene with around ~500 pixels for the resolution which games need to be at 1080p.
Now enough with me being a debbie downer, so I will say we will get there! And when we do you bet believe SC will be doing it along with all the other high performance titles. I've been waiting for GI in games for as long as I remember. I mean, I remember when Doom 3 was trying to get a real-time GI solution to work with their tight corridors. Devs want it, gamers want it, we just need those performance numbers to get a little better but I have no doubts these incredible graphics cards constantly pushing real time technology will get us there soon enough.