James Ray writes:
Want to learn how we create the textures for Poly Haven?
Rico has created an in depth breakdown documenting the workflow and tools we use to create high quality PBR seamless textures from photoscanning the world around us.
In this guide we will be going over our workflow for creating a fully tileable photoscanned surface. While we won’t be covering any single topic in great detail, our aim is to provide a comprehensive document that can be used as a guide by anyone who wants to create their own photogrammetry-based textures.
https://blog.polyhaven.com/photoscanned-texture-creation-process/
