There was a really cool moment in an Nvidia RTX demo (rtx = hardware accelerated raytracing effecs), where they created and showed a camera obscura in the game

There was a really cool moment in an Nvidia RTX demo (rtx = hardware accelerated raytracing effecs), where they created and showed a camera obscura in the game Minecraft -- https://youtu.be/opCDN2jkZaI?t=432 https://youtu.be/opCDN2jkZaI?t=432 (7:12 if the timestamp doesn't work). Supposedly this was something the Nvidia devs were not necessarily expecting to see but happened to stumble upon it. In other words, it arose naturally from their treating light as physical rays rather than being programmed in, and if so I think that's pretty neat.