Skeleton-Aware Skin Weight Transfer for Helper Joint Rigs

Eurographics 2024 Short Papers

Authors: Ziyuan Cao and Tomohiko Mukai

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Abstract: We propose a method to transfer skin weights and helper joints from a reference model to other targets. Our approach uses two types of spatial proximity to find the correspondence between the target vertex and reference mesh regions. The proposed method first generates a guide weight map to establish a relationship between the skin vertices and skeletal joints using a standard skinning technique. The correspondence between the reference and target skins is established using vertex-to-bone projection and bone-to-skin ray-casting using the guide weights. This method enables fully automated and smooth transfer of skin weight between human-like characters bound to helper joint rigs.

Acknowledgements: This work was supported by PlatinumGames Inc.

©Eurographics 2024. This is the author’s version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in Eurographics 2024 Posters, https://doi.org/10.2312/egs.20241018 .