Pavlinho
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honestly, it's incredibly difficult – even the most basic Elven town has 42 materials, and to preserve them, you need to load 42 different textures, or load the existing textures in the correct order (then all matching textures will become one material)
screenshots should be taken in the map editor; there you can rotate the camera as needed, and there's a button that makes screenshots in high resolution; on average, it's 3K, and they are saved in the screenshotsHQ folder in the game's directory.