Can you do a many paths simulation in 2D where there are always symmetrical paths? I find this nicely explains why light appears to travel in straight lines - there's always a mirror image path that cancels the other one out when you sum, except for the direct path.
This is maybe more flexible than you’d like, but it’s easy to make it less so...I like it that you’re in charge of placing the waypoints. Other than that the whole line of chat about triplets, one way of simplifying this is to lock the vertical offset of the positions of the waypoints.
Can you do a many paths simulation in 2D where there are always symmetrical paths? I find this nicely explains why light appears to travel in straight lines - there's always a mirror image path that cancels the other one out when you sum, except for the direct path.
https://slowthinkingphysics.net/PhCurlUpLineUpPropagationPIF
This is maybe more flexible than you’d like, but it’s easy to make it less so...I like it that you’re in charge of placing the waypoints. Other than that the whole line of chat about triplets, one way of simplifying this is to lock the vertical offset of the positions of the waypoints.