Back in 2002 I worked on some plugins for a color grading system that supported 4K. Internally it processed color in 12 bits per channel and I think it support

Back in 2002 I worked on some plugins for a color grading system that supported 4K. Internally it processed color in 12 bits per channel and I think it supported 10bit color output. This was running Linux with NVidia GPUs and was totally amazing to see 4K footage being graded in realtime. That system is now called Baselight and AFAIK it is one of the best: http://www.filmlight.ltd.uk/products/baselight/overview_bl.php http://www.filmlight.ltd.uk/products/baselight/overview_bl.p...