An investigation of changes in taste perception by varying polygon resolution of foods in virtual environments

In recent years, metaverse has received considerable attention. We believe that as this technology develops, humanity can dine in a virtual space while maintaining a sense of immersion. Therefore, we investigated whether the taste of food is influenced by the number of polygons of CG models using VR/AR technology. We created CG models and overlaid the image onto the actual food via HMD. Then the subjects consumed the food which CG image overlaid and answered a questionnaire. Results showed that the higher the number of polygons, the less hardness was perceived and the toon-like model was more likely to affect the taste.