like has anybody ever actually played 'mousetrap' according to the rules? my gut feeling is 'no'
and also, although you *can* implement super-realistic "physically correct" lighting with raytracing, you *don't have to*
in the same way that shaders greatly expanded the artistic possibilities of non-photorealistic graphics, there's a lot you can do with raytracing that doesn't involve creating photorealistic graphics
well a historical parallel is the rise of the "programmable pipeline" (shaders) which coincided (and I think helped) with the rise of indie games, because it meant that indie devs could write shaders that would run on many different GPUs rather than having to implement hardware-specific hacks
in the same way I suspect that ray tracing, by replacing a huge pile of labor-intensive graphical hacks with a more principled approach based on commodity hardware, will in the long run help indie devs
that's a "skirt": it doesn't have any real functional purpose except to force your printer to print *something* first, because a lot of printers have issues putting down filament at the beginning
only idiots write bugs which is why Serious Software like OpenSSL which is written by Hardcore Crypto People never has any devastating security vulnerabilities
if you're working with 'pixelated' / point sampled textures, this shader trick for faking antialiasing *within* the texture is quite useful:
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