pts@watt.acc.Virginia.EDU (Paul T. Shannon) (05/23/89)
I'm a new Pixar user, new also to 3-d graphics. It seems that the Pixar likes to have solid models described by bicubic Bezier pathches (though there are other description techniques as well). From my reading, primarily in 'Computer Graphics: Systems and Concepts' by Salmon and Slater, it looks like the Bezier patch is a means for economically describing a surface, but that it is not a precise description. In the 2-d case, a Bezier curve only provides control points, and the resulting curve can be quite different. Is the same thing true of the 3-d control graph? My first project requires me to create very simple shapes, specifically a transparent sphere with opaque polygons and circles on the sphere's surface. Are bicubic bezier patches a good way to create surfaces and solids of precise shape and dimension?
dnhst3@unix.cis.pittsburgh.edu (Douglas N. Horn) (05/25/89)
Has anyone received the information packet for Siggraph '89
in Boston? (if so when?)
Douglas Horn