thinking about ray tracing from another thread and musing a bit on it I wondered something. In all cases that I've ever computed curved surfaces the surface is computed as n-number of sections. so in reality it a 'mesh' of flat surfaces. this helps keep it simple from what I can figure and also also helps for resolution scales. I wondered though, what is the actual measured difference between the math and real world? This may fall into optics, but I wonder from a quantum scale. is it the photon entanglement that has the light wave reflect off the surface based on the surface geometry? there has to be some kind of information between the photons to have the overall light wave reflect off a surface that is larger than particle, otherwise wouldn't it diffuse no matter the geometry? Is it possible that overall geometry of anything, the arrangement of the atoms if you will is interconnected in such a way that space time sets the path for the photon? that the particle has no other possible path because of that arrangement? seems like that would violate some laws though. wait.. would it be more accurate to say that all particles but the photon follow that function? hence the 'hidden variable'? in order to imagine the above so I could best post it I likened the 'space time' to a body of water and objects in the water displace the water in such a way that the water molecules that make up the waves propagating in the water are connected to the overall geometry. then imagine that the water is something we can not measure and only can measure the individual molecules. - hope that makes some sense.