Show simple item record

dc.contributor.authorSchmidt, R.eng
dc.contributor.authorWyvill, B.eng
dc.contributor.authorGalin, E.eng
dc.date.accessioned2008-02-27T22:44:12Z
dc.date.available2008-02-27T22:44:12Z
dc.date.issued2005-03-08eng
dc.identifier.urihttp://hdl.handle.net/1880/46210
dc.description.abstractComplex implicit CSG models can be represented hierarchically as a tree of nodes (the BlobTree). However, current methods cannot be used to visualize changes made to these models at interactive rates due to the large number of potential field evaluations required. A hierarchical spatial caching technique is presented which accelerates evaluations of the potential function. This method introduces the concept of a caching node inserted into the implicit model tree. Caching nodes store exact potential field values at the nodes of a voxel grid and rely on tri-linear and tri-quadratic reconstruction filters to locally approximate the potential field of a sub-tree. A lazy evaluation scheme is used to avoid expensive pre-computation. Polygonization timings with and without caching are compared for a complex model undergoing manipulation in an interactive modeling tool. An order-of-magnitude improvement in visualization time is achieved for complex implicit models containing thousands of primitives.eng
dc.language.isoEngeng
dc.subjectComputer Scienceeng
dc.titleInteractive Implicit Modeling With Hierarchical Spatial Cachingeng
dc.publisher.corporateUniversity of Calgaryeng
dc.publisher.facultyScienceeng
dc.description.notesWe are currently acquiring citations for the work deposited into this collection. We recognize the distribution rights of this item may have been assigned to another entity, other than the author(s) of the work.If you can provide the citation for this work or you think you own the distribution rights to this work please contact the Institutional Repository Administrator at digitize@ucalgary.caeng
dc.identifier.department2005-770-01eng
dc.date.computerscience2005-03-08eng
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/31230
thesis.degree.disciplineComputer Scienceeng


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record