Thanks for getting back to me. I've read through most of that how-to, and I'm quite familiar with the randomisation features of railclone, at least I think I am, but I still can't get the randomisation to work for this particular railclone. I have a feeling that there is something fundamental that I am missing, but it could also be tied into the complexity of the RC object.
I using a single spline object, with different IDs and verts, and different sub-splines, to drive 18 linear 1S generators. There may even be some ways to optimise to reduce this number, but at the moment that's the way I have it. I have 17 segment objects, which I am trying to drive the materials of, in two basic sets. For this reason, I have each of the objects wired to a material Operator, which in turn has the "replace material id" set to the curent mat id on the base object, 11 for instance. For each operator I have exported the "from" and "to" parameters and for each set, wired them to a "Random" parameter. So I have two "random" parameters in the RC object that drive the two materials that can be randomised. I have tried turning on, and off the "seed" check button, with aparently no effect. I have also tried adding a random parameter wired into the seed value, but with no effect.
When I talk about effect, I am specifically talking about making a new RC object, and selecting the preset that I've put in my library and attaching it to a new spline. What is frustrating is that each RC object produces the same looking building. I have also tried making the "seed" value into a settable parameter, which has met with some success, but I have to set it each time, which is not really the point.
I have also observed another oddity, which is this: under the "general" tab of the RC object, there is a "Random seed" setting, which I would assume should be different for every RC object created, i.e. it's a random seed that should drive the randomness, but for me, using RC Pro 2.7.4 this "random seed" figure is always "123456".
Anyway, I hope I have not missed something more fundamental on this topic, and hope this information helps.
If someone from iToo would like to seem my RC object, please let me know where to send it to and I'll send the max file.
I look forward to responcses.