The Open Rails team has been following the thread with great interest. While we haven't come to a conclusion regarding the best distribution method, we did want to provide the project with some technical guidance to avoid any dead ends.
Going forward Open Rails will continue to support the MSTS shape file (.s ). In the future, the Open Rails Development Team will specify and document a strategic format for describing shapes which may include an additional format beyond the currently supported shape file.
Regarding texturing, Open Rails will support the MSTS ace file (.ace) as well as DDS (.dds). The following guidelines are offered to help the community understand the performance impact of DDS encoding choices:
- For full fidelity, R8G8B8/A8R8G8B8 (no alpha/alpha). Maximum GPU VRAM usage.
- For best compression, DXT1/3/5 (no alpha/non-graduated alpha/graduated alpha). Minimum GPU VRAM usage.
We hope this provides the community with concrete technical guidance for this important community project while we work on the ideal distribution strategy.
The Open Rails team
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Jeff Bush
(newly minted) Head of Communications