We all know that updating old routes (2D sky) to modern ToD versions requires a lot of work (if you don't know, download the mod and make sure the station lighting, tunnels and PIS are broken). But what about updates for routes with earlier 3D sky ToD versions? For example, LIRR 2, Cajon or NYT. How difficult is it to update them to the current ToD version? Are there any mods? Why am I asking? The current version of ToD doesn't have such extreme overexposure, unlike the TSW3 version.
ToD4 is ToD4, there hasn't been a change to the core lighting setup since TSW3 introduced it. What has changed is routes being built with better choice in textures, choices about light sources and levels, baking ect. This can't be changed with mods, it requires a total rebuild of a route's light baking and setup so you basically might as well consider it to be something that would be linked to route remasters, and that is highly unlikely to happen to any routes already using ToD4 for a long time to come when many routes running ToD3.5 and older deserve the update time far more.
