ZecMurphy
Community Assistant
Hi Bearcat
That system only really works well for tram systems, where a curved wire is less noticeable (you put in more masts, or 'cables', to hold the wire!). On a mainline rail system, having a mast every 2m is going to look, well, odd!
It also means that your mesh won't repeat correctly (tramway overhead is generally a single wire, while 'heavy rail' has both the contact wire, and a supporting wire above). As the supporting wire 'sags' through it's length (creating a wave pattern), you need to ensure that your mesh repeats at the maximum allowable length for the pattern in use. Since overhead does not follow the exact center line of the track (it has about 2ft each side that it can move to - depending on the design of pantograph), these longer segments work correctly.
Of course, to model overhead properly you should actually move the wire from side to side at each mast (on a perfectly straight section of track, the wire will appear to 'zig-zag' a little along it's length).
That system only really works well for tram systems, where a curved wire is less noticeable (you put in more masts, or 'cables', to hold the wire!). On a mainline rail system, having a mast every 2m is going to look, well, odd!
It also means that your mesh won't repeat correctly (tramway overhead is generally a single wire, while 'heavy rail' has both the contact wire, and a supporting wire above). As the supporting wire 'sags' through it's length (creating a wave pattern), you need to ensure that your mesh repeats at the maximum allowable length for the pattern in use. Since overhead does not follow the exact center line of the track (it has about 2ft each side that it can move to - depending on the design of pantograph), these longer segments work correctly.
Of course, to model overhead properly you should actually move the wire from side to side at each mast (on a perfectly straight section of track, the wire will appear to 'zig-zag' a little along it's length).