Unity announced that Unity 5’s editor will allow the use of Imagination Technologies’ PowerVR video cards (hardware-accelerated raytracing) to provide a quick preview of lighting; but will we be able to program these video cards in our applications as well? I would think so, but I haven’t seen any statement about that. Unity needs to allow something like this, or be left behind as hardware-based realtime raytracing gradually becomes the new paradigm in the coming years.
Here’s a video of an earlier version of the PowerVR video card doing realtime raytracing: