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Apr 10, 2016 at 15:17 comment added RichieSams No, just any chip. It could be a modified GPU. When I say 'real', I just mean that it's silicon logic, rather than programmed logic, ie. a FPGA.
Apr 8, 2016 at 0:31 comment added Hao Zhang You say "real hardware", does it mean ASIC?
Apr 7, 2016 at 14:59 comment added RichieSams As Nathan mentioned in his anwer, in order to "race the beam", you need a very tight synchronization of the "graphics hardware" and the OS/CPU. Current GPUs and Graphics APIs don't have this support. So the authors created the hardware themselves using a FPGA. In theory, the hardware they created in FPGA could be manufactured into "real" hardware.
Apr 7, 2016 at 6:38 comment added Hao Zhang It seems that in second paper the authors used "ray casting" instead of rasterization. So they used FPGA directly, not emulate a GPU? And it also seems they didn't support any API like OpenGL or DirectX. Do you mean the authors just need FPGA to "race the beam"?
Apr 7, 2016 at 6:24 vote accept Hao Zhang
Apr 6, 2016 at 17:52 answer added Nathan Reed timeline score: 5
Apr 6, 2016 at 17:23 history edited Nathan Reed CC BY-SA 3.0
added 144 characters in body
Apr 6, 2016 at 17:13 history edited Nathan Reed CC BY-SA 3.0
added link to the paper
Apr 6, 2016 at 14:24 comment added RichieSams The reason they're using a FPGA, is they require hardware features that the GPU does not have. So they emulate a GPU using a FPGA.
Apr 6, 2016 at 9:56 history edited Hao Zhang CC BY-SA 3.0
some words corrections
Apr 6, 2016 at 9:16 history asked Hao Zhang CC BY-SA 3.0