It is a type of Japanese paper called Shoji which is translucent and is used as windows of doors and dividers. Japanese also uses them to make lanterns.The color and number of fibres can be changed by the SBSAR file.
ArtStation - Japanese Shoji Screen Paper for Doors and Dividers
Custom Japanese Shoji Screens - Shoji Designs Modern japanese homes, Shoji screen, Japanese house
Wooden Textures, Free PBR
ArtStation - Japanese Shoji Screen Paper for Doors and Dividers
ArtStation - Japanese Shoji Screen Paper for Doors and Dividers
Traditional Textures, Free PBR
3D model Japanese Shoji with wainscot design VR / AR / low-poly
Shoji Screen Paper
Traditional Textures, Free PBR
Japanese Shoji Screen, Door or Divider with Paper Windows, Free PBR