HDR Light Studio is so awesome tool. I just made my first render with it, models are from TurboSquid & UE marketplace.
The best thing here is the 100 % interaction between the scenes in realtime! I made my tiny red-eyed Robot and attached the 3 red lights and I can see also these things in HDR Light Studio.
I can combine all kind of Lights with my scene, and I can also make those super-realistic studiolights “Area lights” in HDR Light Studio. Also as i builded the scene, I had to move the camera and I lost the perfect reflections, but no problem - I just started the HDR Light Studio and Intuitive and fast moved the lights just a bit - and the FOG is reflected to HDR Light Studio also! This tool is the best light solution I have ever seen.
I also installed it to Machinima!
Then I rendered another angle, I did not even jumped back to Light Studio, reflections worked just fine as they were set, so I got some natural randomness there too, I think this is even better than “designed” lights I made for the first one.
Gotta try soon this beast for animations…