A VAN GOGH INSPIRED 3D SHADER METHODOLOGY
This study develops an approach to developing surface shading for computergenerated
3D head models that adapts aesthetics from the post-impressionist portrait
painting style of Vincent Van Gogh. This research is an attempt to reconcile a 2D
expressionist style of painting and 3D digital computer generated imagery. The focus of
this research is on developing a surface shading methodology for creating 3D impasto
painterly renderings informed by Van Gogh’s self-portrait paintings.
Visual analysis of several of Van Gogh’s self-portraits reveal the characteristics
of his overall rendering style that are essential in designing methods for shading and
texturing 3D head models. A method for shading is proposed using existing surfacing
and rendering tools to create 3D digital heads rendered in Van Gogh’s style. The
designed shading methodology describes procedures that generate brushstroke patterns.
User controls for brushstroke profile, size, color and direction are provided to allow
variations in the brushstroke patterns. These patterns are used to define thick oil paint
surface properties for 3D digital models.
The discussion here presents a range of results achieved using the designed shading
methodology that reveals the variations in the rendering style that can be achieved, which
reflects a wide range of expressive 3D portrait rendering styles.
