Motivation

Model Size

Interactive Rendering and Editing

Modeling Programs

Transmission

[image of original dragon model here]

Model sizes are reaching billions of polygons which become difficult to render and edit interactively.

Different hardware renders at different rates and we may like to operate interactively on any hardware.

Models of such sizes are also difficult to display remotely, which leads a desire for progressive transmission.

Modeling programs and designers often create meshes with arbitrary-sided polygons which may be non-planar.