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- OpenSceneGraph binary (*.osgb) - most common format. Contains all textures embedded, uses less space.
- OpenSceneGraph ASCII (*.osgt) - debug format. Stores textures as separate files, uses more space, but provides human-readable format.
- Wavefront OBJ (*.obj) - compatibility format. Stores textures as separate files, might be opened with external software.
- OctoNus 3D model (*.mme) - internal format. 3D models of stones were exported from Pacol Pacor or Oxygen (limited support).
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