PaintersView: Automatic Suggestion of Optimal Viewpoints for 3D Texture Painting

Although 3D texture painting has an advantage of making it easy to grasp the overall shape compared with a method of drawing directly onto a UV map, a disadvantage is unpainted (or distorted) regions appearing in the result due to, for example, self-occluded parts. Thus, in order to perform painting without leaving unpainted parts, sequential change of viewpoints is necessary. However, this process is highly time-consuming. To address this problem, we propose an automatic suggestion of optimal viewpoints for 3D texture painting. As the user paints a model, the system searches for optimal viewpoints for subsequent painting and presents them as multiple suggestions. The user switches to a suggested viewpoint by clicking on a suggestion. We conducted a user study and confirmed that the proposed workflow was effective for 3D texture painting envisioned by users.