As moddb insists I fluff this "content" field out with at least 300 characters I'll give you all a long winded "heres the link". I spent a long time optimising Global Illumination in SoC, the results are impressive to say the least but you will need a MONSTER CPU and GPU still to run with GI in SoC.
Minimum Recommended spec for GI:
Highly Clocked Dual or Quad core CPU
Heavily OC'd 1GB GTX460
Recommended:
Highly clocked Quad core CPU
OC'd GTX580
I'm not kidding with those specs. You'll have to forgive the video lag, fraps always does it on my system unfortunately. Actual gameplay is far smoother (average around 60FPS+ using medium quality GI & GTX460).
Looks good, but I'm having a hard time distinguishing a difference between normal lighting and GI lighting. Perhaps you could consider a comparison video showing what a scene looks like with and without GI? I think that would show a bit more noticeable difference than just GI by itself.
The Global Illumination I have implemented is very demanding even on modern GPUs and CPUs (this is because the GI implementation with SoC is largely CPU based) so currently the GI implementation is on the subtle side of things. What I will do is upload a screenshot of the ideal settings for GI for people to compare.
How well would you think a GTX 560 Ti 448 Cores would behave with that kind of stuff (alongside with a i7 Quadcore)? Sure, it's still not a GTX 580, but in the benchmark tests for newer games such as BF3 it seems to work pretty well.
You will be able to run medium quality GI without any real lag I'd think. High quality and ultra quality GI will take a GPU and CPU that doesn't currently exist still. I'm not totally finished with GI yet I'm going to see if I can get accurate GI that looks good with a much lower Photon count (currently medium GI is 70 Photons, High and Ultra quality GI 96 & 128 Photons respectively). I've also just uploaded a screenshot of the ideal GI settings, check it out ;)
Great job, it looks awesome..