Anyone knows how to make the textures, like displacement, reflection, diffuse, bump and normal pass, or any tutorials that can be referenced?
Adobe has now ‘Substance Sampler’ which is basically a dedicated tool to create textures/materials from images. There are also quite a lot online pages where you can convert your texture to the right maps.
One interesting one I just noticed is this: Generate 3D Textures for Free | Polycam
It uses AI to generate unique textures which you can download and contains roughness/albedo/normals/displacement. Not the biggest resolution but interesting concept.
One which can create the maps from a picture you can find here but there are a lot of these: Online AI PBR Material Generator - Digimans.ai
Just be sure the image you submit is an image without shadows, other tools can remove them but you don’t want shadows since they will give a wrong result if the light hits at another angle.