For my Uni project I am creating a classic fun fair environment and for it I plan to have Cabochon Lights (seen in image above) which are commonly used on rides flashing along to the music.
My question is how would you go about creating the prism-like refracting the plastic does to the light? Would it be a simple case of just putting light inside a translucent gem shape, or would the physics not work like that?
Another option I’ve considered are IES lighting profiles, but I can’t find any related to amusement parks. Would I have to make one myself, if so how would I go about doing it?
Also, because of the environment I will probably have about 100 or more of these. How many lights can I add before lag becomes an issue? I know I can bake some of the lighting but a lot will turn on and off so the lighting needs to change real time so what other options could I use to help with performance?
Any help would be appreciated, thanks!