Explore FIDENTIS Analyst II, an application for the anthropological analysis of 3D scans of human faces. Focus on the current prototype implementation of 3D masks. Extend the implementation with the following features:

• Layers and their management.
• Combination of multiple masks on a single layer.
• The ability to edit masks on the 3D surface, i.e., shifting points over the surface in the 3D scene and backward projection of these changes into the 2D view.
• The ability to detect whether a given point from the 3D surface is inside the 3D mask.
• Other functional requirements that appear from the consultations with domain experts.

The theoretical part will discuss using 3D masks in FIDENTIS Analyst II and also similar solutions used in other 3D and photo-editing applications, aiming to describe best practices and common designs of interaction that could be used in FIDENTIS Analyst II. Implemented functionality will be described by means of functional requirements, discussion of the design and design decisions, and implementation details.

The practical part involves the full implementation of the required functionality and its integration into the desktop application. The implementation will undergo basic user testing to identify gaps and possible future improvements.