Other Physics Based Research
Additional physics based research was conducted during
the last five
years. At the beginning of this time period a previously developed
simulation tool (Gondek,
Meyer, and Newman, 1994) was evaluated by analyzing two specific
reflection problems. The surface and subsurface microstructure for
a hummingbird wing and bond paper were both modeled. Rays were cast
at each surface, the interaction of the rays with the surface was
simulated, and the reflected rays were captured in a data structure.
The data structure was then used to predict how rays would reflect
from that surface when a picture of the object was made. First order
correspondence was achieved between the simulation and available analytical
reflection models (Schramm,
Gondek, and Meyer, 1997; Schramm
and Meyer, 1998). A different piece of physics based research
completed at the beginning of the five year
period was the development of a physical error metric to guide the
spawning of reflected rays during Monte Carlo ray tracing (Bolin
and Meyer, 1997).
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