The start of this
discussion thread
Aug 02 :
Mahes Visvalingam invited Ramesh
Raskar and Michael Cohen to check the CISRG
evaluation of their polygon fattening approach to image
precision silhouette rendering.
Main concern: polygon fattening did not seem to provide a clear
depiction of the silhouettes of terrain.
20 Aug 02 :
Ramesh's response.
- Provided pointers to new
book:
http://www.realtimerendering.com/
http://www.acm.org/tog/resources/RTR/rtr2_npr.pdf
- Query:
What is the difference between
silhouette and occluding contour
as far as the displaying them for 3D polygonal scenes is
concerned ?
21 Aug 02 : mv queries Figure 7.4 in
book excerpt,
http://www.acm.org/tog/resources/RTR/rtr2_npr.pdf
21 Aug 02: Ramesh's response
Yes .. that is the defn
of silhouette for polygonal models
> > (edge shared between a front and
a back facing polygon from *given*
> > viewpoint)
22 Aug 02 :
mv notes that researchers in
different fields are using silhouette and related terms differently
and we agree that it would be helpful to start a discussion thread
on this topic. mv to write the foreword and invite researchers
in NPAR, cartography, psychology and vision research to
contribute towards greater awareness.
