The Curves section of the Visibility on Photos pane controls whether 2D curves (marks on photographs) and 3D curves (or projections) are visible on the open photographs.
The Curves section will only appear on this pane if at least one curve has been marked in the project.
When PhotoModeler is in Curve marking mode the curve mark type is forced to be visible.
Note: 3D items are displayed on oriented photographs only. See the section on Photo Projections for more information.