Hi otrhan,
I have some evidence that the issue is not the mesh, rather, it is the absence of 3D points.
If you do the following:
- import a proper colmap project
- apply dense reconstruction
- (optionally texture, which gives a good result)
- export the untextured mesh as mesh.obj
- duplicate the colmap workspace but this time, emptying the list of 3D points
- reimport the new colmap workspace in a new RC project (which gives a mere list of images with poses)
- import the mesh.obj as external model
- texture this model
Then, you get the same texture artifact than the one you saw with the data I sent.
When there are 3D points it works, and it doesn’t when you artificially get rid of them.
Hoping this makes sense,
Best,
Koda