Pankaj Khanna, Jesper Mortensen, Insu Yu, Mel Slater
Abstract:
We have invented a new
ray traversal scheme that is especially suitable for dynamically changing
objects during image generation with ray tracing. This
algorithm has recently been introduced for walkthrough [Mortensen, et al. 2004],
and it compared favourably with the leading algorithm in the
field, Coherent Ray Tracing [Wald et al., 2001], at least in the case of
non-parallel single ray processing. Here we only concentrate on dynamic
changes to objects. Our approach supports dynamic object changes in a very
simple way since the major operation in the algorithm is
only 2D polygon rasterisation at very low resolutions. At the moment our
implementation is single processor, and does not make use of the
graphics hardware, nevertheless the results are promising.
Media:
The paper - (800KB .pdf)
The video - (1.4MB mpg)
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Links:
VLF
Ray Tracing paper
Wald
Coherent Ray Tracing paper
Virtual
Light Field paper