Stuff like that was on my mind too - of course as I mention in the article, you have to then be careful because it's transparency, so it will show parallax - but w/manually made skirts U can make them tight. I guess stochastic transparency b/c you have a gbuffer that is not "blendable"?

Yes, stuff like that is where my mind was at first - I think the smart intuition is that you can just do everything in screenspace. That said, still hard, because that has to be at full-res, so you have to optimize quite a bit I imagine