Bubba, it looks like you're in for a very long wait.. because these setups are SLOW to render

more info below
Joris: Thank you!

yep it might be a good idea to merge something similar into Studio. But it's not my call, and i doubt i can convince NL to take on something like this. With the long rendertimes these things require to clean up in Maxwell i don't think they will appreciate that from a marketing point of view. That would be like "Buy the new Maxwell Render 2.0, now even slower than before!"

not the best slogan..
Yes to render out the lamps themselves as images at highresolution and then planarmap them onto planes might work be a temporary solution. But i'm not very fond of such cheap and fake solutions.
Cinema4D modeling

well it works for some models but i can't say the tools and the modeling workflow is as sexy as it is in Modo, far from.. unfortunately.
Ok, now i created a very rough setup and pre-alpha materials for this and i also tested various solutions to get this to render relatively fast and noisefree and so far not much seems to end in acceptable results, i'm pretty dissapointed.

you can see my two first early tests below. I'll provide more detailed descriptions with each image.
For the first testrender i used one single umbrella on the left side of the model as seen in this viewport shot.
This is the testrender of the above setup with one umbrella emitter, for this i were unable to create a satisfying clothmaterial with semitransparency. It failed completly. Instead i applied the emittermaterial to the umbrella facing the model.
SL: 10,21 Time: 16min24sec Benchmark: 98,83
For this, the second shot i wanted to use two emitters. The umbrella i used in the first scene above and the big diffuser with a net infront of the cloth. Again the semitransparent cloth material completly failed. So i mapped the emittermaterial to the plane behind the net.
Here's the rendering of the above.
SL: 12,00 Time: 36min41sec Benchmark: 92,12
/ Max