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Pankaj Khanna, Jesper Mortensen, Insu Yu, Mel Slater
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Abstract:
Ray tracing dynamically changing scenes with unstructured motion for animated
objects has long been a problem for raytraversal acceleration schemes. When
polygons are transformed independently
of one another, the cost of updating traditional spatial data-structures can be
quite high [2001]. We propose a ray traversal scheme that is well suited to
scenes with dynamically changing
objects during ray tracing. A similar data structure for propagation and
walkthrough only rendering of globally illuminated scenes was introduced for
global illumination in [2004].
Here we concentrate on an application and modification of that data structure
for the task of ray tracing scenes composed of static and dynamic objects. The
major computation for handling arbitrary
transformations of dynamic objects reduces to low resolution 2D polygon
rasterisation.
Media:
Abstract - (1.6MB
.pdf)
Poster - (3.6MB .pdf)
Video - (17.7MB .mpg)