Real-Time Dynamic Wrinkles of Face for Animated Skinned Mesh

Abstract

This paper presents a method to add fine details, such as wrinkles and bulges, on a virtual face animated by common skinning techniques. Our system is based on a small set of reference poses (combinations of skeleton poses and wrinkle maps). At runtime, the current pose is compared with the reference skeleton poses, wrinkle maps are blended and applied where similarities exist. The poses evaluation is done with skeleton's bones transformations. Skinning weights are used to associate rendered fragments and reference poses. This technique was designed to be easily inserted into a conventional real-time pipeline based on skinning animation and bump mapping rendering.

Physically‐based forehead animation including wrinkles

“…A combination of texture‐mapping techniques for fine wrinkles and geometric techniques for large wrinkles can also be used . Some approaches require the wrinkles to be specified by the user , which can be blended between poses, whereas others are calculated automatically , although with less anatomical accuracy. Performance‐capture techniques can also be used to produce wrinkle animations , which require the facial or wrinkle model to be configured to the performer.…”

Direct rendering of feature-based skinning deformations

“…Editing can then be propagated to all subsequent frames. Dutreve et al [33] presented a method to add fine details, such as wrinkles and bulges, on a virtual face animated by common skinning techniques. However, it is limited to facial animations.…”