commercial real-time raytracing
https://devblogs.nvidia.com/introduction-nvidia-rtx-directx-raytracing/ …
hey @Peter_shirley did this happen before or after you predicted it would?
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Well, the problem is that raytracing is trivially parallelizable in theory, but the memory locality is horrendous without being very smart about data layout. This killed all the early attempts to do raytracing on GPU, AIUI.
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GPU is probably not a good model. You want millions of tiny CPU-like cores. GPU vendors just try to make it into a GPU problem.
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but unless the millions of tiny cores are good at other things too, a GPU that is only ok for raytracing but that does lots of other jobs will be the thing that I want
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Well the "millions of tiny cores, purely for raytracing" might very well make sense in a VR or AR unit.
End of conversation
New conversation -
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BTW any idea how much computation/how many rays you need to make something minimally interesting like this? E.g. 320x240 and "very high ISO sensor"?
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