Quite right Alberte, thanks.
Many of my planes have large poly shadows (well larger than the new limit) because while the wings and tail had been simplified, the fuselage uses more polys to get the curved shape of the shadow, so just over the limit.
Someone used the A-320 in a map supplied to Auran, and the aircraft has now been built-in to TS2012. There are also a couple of helicopters, but only the one aircraft that I know of that is now built-in. I can obsolete them with a new upload.
I understand Auran experienced problems with some other creator's train models when lights were on, giving drastic reductions in frame rate. On investigating they found some enormous shadows being used, (I assume handrails and fine detail etc were shadowed) but too late in the release process to alert cretators or make better changes. Perhaps Auran should have eliminated shadows if they were above the limit, instead of creating a shadow as large as the mesh bounding box, so be it.
I have reduced the shadow for the A-320, not uploaded yet, CJ187 has checked it for me. I will await my copy of TS2012 so I can verify the shadows before I upload any fixes. As it is difficult to reduce polycount in an already created model in 3dsmax, you have to start form scratch to do a shadow model, so fixes will take time.
I will have to spend time on any problem model, instead of new aircraft. I will let you know when they are fixed, tested and uploaded. Any one who has done a reskin of my aircraft that have large shadows should add the new shadow mesh to their models and re-upload.
Additionally, as you cannot animate a shadow, some aircraft that flare for instance do not have a shadow, I know it can look strange when mixed with others that do have shadows, but that is better than seeing a shadow outline outside the main mesh. This particularly applies to flaring aircraft, the KC135 tanker that changes height above the track and to future helicopters that will use that option for lift off (when I get around to finishing them). For the same reason, you cannot have shadows for animated flaps, folding wings and landing gear, so all aircraft do not show shadows for those parts. I use an invisible shadow mesh to get over the CMP requirement for a shadow to be supplied.
While Trainz is quite versatile, compromises have to be made.
Ian