It is not possible to export virtual layer masks (AI or from mesh) through the COLMAP exporter.

Found in 2.1.0.119011 (R210).

The mask export doesn't work even when the masks are regenerated from the mesh.

Outcome:

Error appears: "The filename, directory, or volume label syntax is incorrect."

[Image Removed]

Desired outcome:

The export is successful.

1. Add images (Sova dataset):
   1. [Link Removed]
2. Generate AI masks
3. Align
4. Export Colmap
   1. Select the mask layer for export
   2. [Link Removed]