The trajectory of real-time raytracing kind of mirrors is a microcosm of CS: by the time we got it, the traditional rasterization approaches got so good that raytracing seems hardly worth the trouble
What bugs me about Monte Carlo simulations is that they aren’t how an artist would think about lighting. Artists think more in terms of VPLs (i.e. large light areas, not individual rays). The human brain has worked out a way to do global illumination more cheaply :)
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Oh, absolutely. I actually hate how everything in modern gaming graphics and animation-style CGI movies is so divorced from "artist" approach, and would love to see innovation in those areas.
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But for VR/AR, and for not sticking out as ugly in live action movies, and for cool stuff like reproducing real optical illusions, lens optics, special materials, etc. you really need raytracing.
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