Hey!
I did a photogrammetry using RC, then I simplified it from 41mln tris to 6mln tris, unwrapped and made a texture reprojection from 41mln tris model to this simplified model. Then I exported this simplified version(as fbx file) and imported it to Blender and everything worked fine.
After that I was curious to see how the 41 mln tris could look like and compare these two versions, so I exported the original 41mln tris version as fbx. too. But after importing it to Blender it has some weird texture “holes”. When I rotate the object, it seems like the texture is actually there, but I dont really understand what could be the cause of this weird look.
Added a screenshot, so the stone on the left is the 6mln tris and textures work fine, the right one is 41 mln tris and has this strange textures.
Thanks for any help!