Computer-Generated Pen-and-Ink
Illustration of Trees
Oliver Deussen and Thomas Strothotte
Proc. of the 27th ACM International Conference on Computer Graphics and
Interactive Techniques
SIGGRAPH'00, pp. 13-18,
2000.
Abstract
We present a method for automatically rendering pen-and-ink
illustrations of trees. A given 3-d tree model is illustrated by the
tree skeleton and a visual representation of the foliage using abstract
drawing primitives. Depth discontinuities are used to determine what
parts of the primitives are to be drawn; a hybrid pixel-based and
analytical algorithm allows us to deal efficiently with the complex
geometric data. Using the proposed method we are able to generate
illustrations with different drawing styles and levels of abstraction.
The illustrations generated are spatial coherent, enabling us to create
animations of sketched environments. Applications of our results are
found in architecture, animation and landscaping.
The Algorithmics Beauty
of Plants
Przemyslaw Prusinkiewicz and Aristid
Lindenmayer
Springer-Verlag, 1990.