Submitted by , posted on 10 June 2002
Image Description, by
This is a composite image that demonstrate the results of a subdivision
surface technique I implemented. The particular technique is the Modified
Butterfly as described by Denis Zorin (SIGGRAPH 1996). I'm doing this as
part of an independent study course at Utah State University, as part of my
I would liked to have included several stages of the subdivision in
wireframe, but the wireframe captures didn't look very good, instead the
composite image displays 1 wireframe model after 2 levels of subdivision,
with the three remaining shaded images showing subdivision after 5 steps and
a little over 30,000 triangles each.
A few technical notes...
Modified Butterfly Subdivision Technique
8 original controls points define each of the surfaces in the image
STL significantly used to build the triangle/polygon mesh structure
OpenGL to render the triangles