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Prior research on deformable body fracture has largely focused on achieving physically accurate simulations, usually at the expense of real-time performance. We sacrifice engineering-level simulation accuracy, as would be expected in a surgical simulation, in favor of visually plausible animation. We use position based dynamics (PBD) to implement the dissectible model as a grid of constrained particles displayed as textured volumetric splats. Results are shown for a variety of real-world datasets, and we demonstrate fracture modes that are crucial to anatomy education applications: cutting, tearing and excision. A performance analysis shows that our compute shader implementation is capable of faster real-time performance than MPM and FEM, making it suitable for this application.<\/jats:p>","DOI":"10.1145\/3820013","type":"journal-article","created":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T15:37:39Z","timestamp":1782747459000},"page":"1-23","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Real-Time Dissectible Deformable Models Using High-Performance Breakable Shape Constraints 60"],"prefix":"10.1145","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6704-6351","authenticated-orcid":false,"given":"Tim","family":"McGraw","sequence":"first","affiliation":[{"name":"Purdue University","place":["West Lafayette, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-0358-7723","authenticated-orcid":false,"given":"Jack","family":"Myers","sequence":"additional","affiliation":[{"name":"Purdue University","place":["West Lafayette, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"320","published-online":{"date-parts":[[2026,6,29]]},"reference":[{"key":"e_1_3_3_2_1","doi-asserted-by":"crossref","unstructured":"Michael\u00a0J Ackerman. 1998. 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