Maximum texture dimensions for unique (historical) buildings like cathedrals, fortresses or other well known points of interest - 512px. A model on unique building must use one diffuse texture for a spring-summer-fall and one diffuse texture for a winter. Winter texture must have _wi suffix in its name to be automatically loaded if mission uses winter season.
Maximum texture dimensions for city blocks - 2048px. Currently all models for blocks share the same diffuse texture for a spring-summer-fall and the same diffuse texture for a winter. Additionally they have shared damage textures (with _d1 suffix) also for both kinds of seasons. #