Graphics (TOG)


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ACM Transactions on Graphics (TOG), Volume 18 Issue 3, July 1999

Radiance interpolants for accelerated bounded-error ray tracing
Kavita Bala, Julie Dorsey, Seth Teller
Pages: 213-256
DOI: 10.1145/336414.336417
Ray tracers, which sample radiance, are usually regarded as offline rendering algorithms that are too slow for interactive use. In this article we present a system that exploits object-space, ray-space, image-space, and temporal coherence to...

Analyzing bounding boxes for object intersection
Subhash Suri, Philip M. Hubbard, John F. Hughes
Pages: 257-277
DOI: 10.1145/336414.336423
Heuristics that exploit bouning boxes are common in algorithms for rendering, modeling, and animation. While experience has shown that bounding boxes improve the performance of these algorithms in practice, the previous theoretical analysis has...

Searchlight and Doppler effects in the visualization of special relativity: a corrected derivation of the transformation of radiance
Daniel Weiskopf, Ute Kraus, Hanns Ruder
Pages: 278-292
DOI: 10.1145/336414.336459
We demonstrate that a photo-realistic image of a rapidly moving object is dominated by the searchlight and Doppler effects. Using a photon-counting technique, we derive expressions for the relativistic transformation of radiance. We show how to...