Proceedings: GI 2000

Model Simplification Through Refinement

Dmitry Brodsky, Benjamin Watson

Proceedings of Graphics Interface 2000: Montréal, Québec, Canada, 15 - 17 May 2000, 221-228

DOI 10.20380/GI2000.29

  • BibTeX

    title = {Model Simplification Through Refinement},
    author = {Dmitry Brodsky and Benjamin Watson},
    booktitle = {Proceedings of the Graphics Interface 2000 Conference, May 15-17, 2000, Montr{'{e}}al, Qu{'{e}}bec, Canada},
    year = {2000},
    month = {May},
    pages = {221--228},
    url = {}


As modeling and visualization applications proliferate, there arises a need to simplify large polygonal models at interactive rates. Unfortunately existing polygon mesh simplification algorithms are not well suited for this task because they are either too slow (requiring the simplified model to be pre-computed) or produce models that are too poor in quality. These shortcomings become particularly acute when models are extremely large.    We present an algorithm suitable for simplification of large models at interactive speeds. The algorithm is fast and can guarantee displayable results within a given time limit. Results also have good quality. Inspired by splitting algorithms from vector quantization literature, we simplify models in reverse, beginning with an extremely coarse approximation and refining it. Approximations of surface curvature guide the simplification process. Previously produced simplifications can be further refined by using them as input to the algorithm.