HCI in computer graphics focuses on designing and evaluating interactive systems that allow users to effectively and efficiently interact with computer-generated content, such as 3D models, animations, and virtual environments.

Natural language processing is not typically used as an HCI technique in computer graphics, as it is more commonly associated with text-based interactions and artificial intelligence.

Interaction design, user experience design, and interface design are all terms used to describe the process of designing and evaluating user interfaces for computer graphics applications.

While aesthetics can be important in HCI design, it is not a key factor to consider when designing HCI for computer graphics applications, as the focus is primarily on functionality and usability.

Cognitive model, mental map, and conceptual model are all terms used to describe the mental model that users develop of a computer graphics system based on their interactions with it.

Olfactory feedback is not typically used in HCI for computer graphics applications, as it is more commonly associated with sensory experiences in the real world.

User testing, usability testing, and evaluation are all terms used to describe the process of evaluating the usability and effectiveness of HCI in computer graphics applications.

Creating realistic and immersive experiences is not typically considered a HCI challenge in computer graphics applications, as it is more focused on the technical aspects of rendering and animation.

Domain-specific HCI, context-aware HCI, and adaptive HCI are all terms used to describe the process of adapting HCI techniques and principles to specific application domains.

Color theory is not typically considered a HCI research area in computer graphics, as it is more focused on the aesthetics and visual perception of colors.

Collaborative HCI, distributed HCI, and groupware HCI are all terms used to describe the process of designing and evaluating HCI for computer graphics applications that are used in collaborative and distributed environments.

A/B testing is not typically used as an HCI evaluation method in computer graphics, as it is more commonly associated with web development and marketing.

Educational HCI, learning HCI, and pedagogical HCI are all terms used to describe the process of designing and evaluating HCI for computer graphics applications that are used in educational settings.

Surprise is not typically considered a HCI design principle in computer graphics, as it can be disruptive and confusing for users.

Medical HCI, healthcare HCI, and clinical HCI are all terms used to describe the process of designing and evaluating HCI for computer graphics applications that are used in medical settings.