6533b828fe1ef96bd12894cf

RESEARCH PRODUCT

Reverse Catmull-Clark Subdivision

Sandrine LanquetinMarc Neveu

subject

subdivision surfacesComputer Science::Graphicsmultiresolutionmultirozlišenídělené plochyanimationMathematicsofComputing_NUMERICALANALYSISanimaceCatmull-Clark schemeCatmull-Clarckovo schémaComputer Science::DatabasesComputingMethodologies_COMPUTERGRAPHICSMathematics::Numerical Analysis

description

Reverse subdivision consists in constructing a coarse mesh of a model from a finer mesh of this same model. In this paper, we give formulas for reverse Catmull-Clark subdivision. These formulas allow the constructing of a coarse mesh for almost all meshes. The condition for being able to apply these formulas is that the mesh to be reversed must be generated by the subdivision of a coarse mesh. Except for this condition, the mesh can be arbitrary. Vertices can be regular or extraordinary and the mesh itself can be arbitrary (triangular, quadrilateral…).

http://hdl.handle.net/11025/6630