Ray tracing today

I first learned about ray tracing from Turner Whitted in 1980 and have been fascinated by and about it ever since. About eight years later I was working with a company called Meiko which was developing systems based on the Inmos Transputer. The transputer was an innovative and advanced 32-bit floating-point processor with four high-speed serial nodes, and it could produce 1.5 MFLOPS. Nodes could be connected to form various configurations, such as a hypercube supercomputer. One year we took 16 transputers and put them together and ran a ray tracing example with a 512 x 512 display. Capable of