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If earlier ground resolutions allowed more textures than 16, how can it be my system hardware?Before you get too excited about HD terrain (and it certainly is more impressive than 5m terrain) it does have some limitations.
These include:-
- You can only have 16 textures per baseboard (but they can be a different set of 16 on different baseboards). This is a limitation caused by your system hardware (CPU/GPU/etc) and not by the Trainz software.
If earlier ground resolutions allowed more textures than 16, how can it be my system hardware?
In regards to the 16 textures limit in general; this is unfortunately a limitation of hardware not software. A lot of people forget that the hardware in computers is finite; and that does mean that we need to build Trainz around working with the hardware that exists; and within the range of the system specs we support (including the detail settings being set appropriately of course). Unlike a lot of games we are able to offer a lot of flexibility when it comes to route creation, and content creation, but it's still incredibly important to work within the limitations of existing hardware. This does mean that some things will have limits, even if other methods may not have, or may have had different limits on them.
As an example, Unity Engine allows only 8 'terrain layers' (their term for terrain textures in this case) per tile. Some game engines don't impose a limit, but instead expect developers to limit themselves to ensure that they don't cause stability/performance issues. However as Trainz is a game in itself, rather than a game development suite, we need to impose suitable limits on some areas to avoid causing performance issues directly. This is why we have LOD requirements, don't allow 'free for all' on texture sizes, etc.
I would ask if those earlier ground textures were using a resolution of 10m or 0.125m per grid? But to repeat part of the answer from Zec in another forum - https://forums.auran.com/trainz/showthread.php?171956
I think the clue here is 'range of system specs'. The bigger the range then the bigger potential market.
I wonder if it's the case that higher specs of computers could support more textures, but that could cause inconsistencies.
My minimum GPU on an old laptop is a GTX1050Ti and HD terrain works on a beta of Trainz Plus running on that. It was "state of the art" years ago when I bought it.
Most if not all games with ray tracing allow the user a range of settings, usually OFF LOW MEDIUM or FULL.A similar situation may/will arise when ray tracing comes to Trainz. You will need a capable (i.e. expensive) GPU with adequate power in your system to run it. N3V have already mentioned that they are looking at introducing ray tracing into a future release.
for some reason I could not get the route with the HD terrain. ....What could be the reason for this phenomenon? Glitch, bug?