style in line drawing rendering
[ u n d e r - c o n s t r u c t i o n ]
Non-Photorealistic styles are usually hard-coded in integrated
software with access to a limited number of parameters, but they lack
a flexible and formal specification framework. In contrast, the
shading languages available in photorealistic renderers such as
Pixar's RenderMan permit the design of an infinite variety of rich and
complex appearances.
We are developing a flexible procedural approach
to non-photorealistic style specification, focusing on pure line
drawing as a first step. In our approach, style can be specified by
implementing procedures that describe how the silhouettes and other
feature lines from the 3D model should be turned into strokes. This
will allow for a great variety of styles, including local stylistic
variations within the drawing. The systems we are developing will
then be used to explore depiction styles. We will borrow inspiration
from the visual art, and we will implement in our systems procedures
that imitate given example images.