Some real-time rendered physics experiments I did with Octane Render (the ultrafast unbiased GPU renderer) and MassFX in 3ds Max 2012. The instant ultrahigh quality feedback of Octane is extremely enjoyable for this kind of experiments, it can update thousands of objects in real-time and render them in full photorealistic detail using path tracing. It feels like editing a prerendered animation in real-time, it just utterly amazes me that this is possible today.
Enjoy these videos:
(the banding on the sky in the video is a compression artefact from my capturing software, the actual image doesn't suffer from it)
By the way, there is now a dedicated blog for Octane Render with incredible stuff, check it out here:
http://render.otoy.com/newsblog/