Caustic has rolled out another part of it’s Hardware Accelerated Raytracing technology called “CausticRT”.

CausticRT™ is the world’s only massively accelerated raytracing system. This system— comprised of the revolutionary CausticOne™ graphics accelerator card, and the CausticGL™ programming API—enables you to create a uniquely high-performance, scalable rendering environment where image quality is never compromised.

It still requires one of their special “CausticOne” cards, but it looks promising.

via Caustic Graphics :: Realtime Raytracing :: CausticRT.