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Conference Paper

Customized Object Hierarchies


Haber,  Jörg
Computer Graphics, MPI for Informatics, Max Planck Society;


Stamminger,  Marc
Computer Graphics, MPI for Informatics, Max Planck Society;


Seidel,  Hans-Peter       
Computer Graphics, MPI for Informatics, Max Planck Society;

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Haber, J., Stamminger, M., & Seidel, H.-P. (2000). Customized Object Hierarchies. In B. Girod, G. Greiner, H. Niemann, & H.-P. Seidel (Eds.), Proceedings of Vision, Modeling, and Visualization 2000 (pp. 255-262). Berlin, Germany: Akademische Verlagsgesellschaft Aka.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-3494-6
Object hierarchies are useful for different rendering applications. In
hierarchical radiosity, for instance, the quality of lighting simulations
can be improved through well-adapted object hierarchies. Using a different
criterion for constructing the hierarchies may lead to significant
speed-ups for typical ray tracing applications.

In this paper we introduce a new method for automatically creating
object hierarchies. Our algorithm inserts all scene objects sequentially
into the hierarchy created so far. The insertion decision is based on a
user-defined cost function. Thus the algorithm can be guided to create
customized object hierarchies appropriate to the desired application.

In addition, a global optimization may be used to improve the completed
hierarchy even further. During this optimization step ill-formed groups
are eliminated by breaking up or splitting. The results obtained with our
method demonstrate the benefit of customized hierarchies over traditional