温馨提示:本站仅提供公开网络链接索引服务,不存储、不篡改任何第三方内容,所有内容版权归原作者所有
AI智能索引来源:http://www.ea.com/seed/news/ddm-compression-with-continuous-examples
点击访问原文链接

SIGGRAPH 21: Direct Delta Mush Skinning Compression with Continuous Examples

SIGGRAPH 21: Direct Delta Mush Skinning Compression with Continuous Examples SEED Research & Announcements Blogs Publications Open Source Careers Contact Us Research & Announcements Blogs Publications Open Source Careers Contact Us SIGGRAPH 21: Direct Delta Mush Skinning Compression with Continuous Examples This research paper was published at ACM SIGGRAPH 2021.

Direct Delta Mush (DDM) is a high-quality, direct skinning method with a low setup cost. However, its storage and run-time computing cost are relatively high. This is for two reasons: its skinning weights are 4×4 matrices instead of scalars like other direct skinning methods, and its computation requires one 3×3 Singular Value Decomposition per vertex.

In this research paper, Binh Huy Le (SEED), Keven Villeneuve (SEED) and Carlos Gonzalez-Ochoa introduce a compression method into DDM to address the storage and runtime overhead.

This approach takes a DDM model and splits it into two layers: the first layer is a smaller DDM model that computes a set of virtual bone transformations, and the second layer is a Linear Blend Skinning model that computes per-vertex transformations from the output of the first layer. This two-layer model can approximate the deformation of the original DDM model with significantly lower costs.

The team’s main contribution is a novel problem formulation for the DDM compression based on a continuous example-based technique, in which they minimize the compression error on an uncountable set of example poses. This formulation provides an elegant metric for the compression error and simplifies the problem to the common linear matrix factorization. Their formulation also takes into account the skeleton hierarchy of the model, the bind pose, and the range of motions. In addition, they propose a new update rule to optimize DDM weights of the first layer and a modification to resolve the floating-point cancellation issue of DDM.

Watch the demonstration video above.

Download the reseatrch paper “DDM Skinning Compression with Continuous Examples” (PDF 25 MB) 

Watch the full presentation below.

Download “DDM Skinning Compression with Continuous Examples” (PDF 25 MB) 

 

Related News A Theory of Stabilization by Skull Carving SEED Dec 3, 2024 A new approach to stabilizing facial motion for creating photo-real avatars that significantly enhances accuracy and robustness. Gigi Lightning Talks SEED Sep 26, 2024 SEED brought together developers to show off their prowess using the Gigi rapid prototyping platform for real-time rendering. SEED's Adventure in Gameplay Innovation SEED Sep 13, 2024 SEED is branching out into the world of game mechanics, storytelling magic, and interactive wonders. Game Library Subscribe EA app About Accessibility Help Legal & Privacy User Agreement Privacy & Cookie Policy Online Service Updates Security YouTube Terms of Service Google Privacy Policy Optional Cookies, including those that support the Multimedia Player, are currently disabled based on Your Privacy Choices settings. 

Choose Accept and Play Video to enable the Multimedia Player, including its associated Cookies. This may involve the collection and sharing of your viewing information by YouTube for analytics and advertising purposes.

You can also choose to watch the video on YouTube.

智能索引记录