In this paper, we present sketchy-ar-us, a modified, real-time
version
of the Loose and Sketchy algorithm used to
render graphics
in
an AR environment. The primary challenge was to modify the
original
algorithm to produce a
NPR effect at interactive frame rate.
Our
algorithm renders moderately complex scenes at multiple frames
per second. Equipped with a handheld visor, visitors can
see the
real environment overlaid with virtual objects with
both
the real
and virtual content rendered in a non-photorealistic style.
Publications
A Loose and Sketchy Approach in a Mediated Reality Environment, Haller M.,
Landerl F., Billinghurst M., in 3rd International Conference on Computer Graphics and Interactive
Techniques in Australasia and Southeast Asia, Graphite 2005,
Nov. 29-Dec. 2, 2005,
Dunedin, New Zealand.
A Mediated Reality
Environment using a Loose and Sketchy rendering technique,
Haller M., Landerl F., in proceedings of the 4th IEEE and ACM International Symposium
on Mixed
and Augmented Reality, ISMAR 2005, pp. 184-185, Oct. 5-8, 2005, Vienna, Austria.
More Sketchy, More AR, More Fun!, Haller M., Landerl F., Billinghurst M., ACM SIGGRAPH
2005,
Poster Session, August, 2005, Los Angeles, USA.
Additional Data
The
pipeline of the real-time Loose and Sketchy algorithm.
sketchy-ar-us
in use: the embedded snapshot shows the
view of what the users would see
through the handheld visor.
Gouraud
rendered image.
Blurred colored image.
Combination of color and
paper texture.
Adding particle-rendered
outlines.
Different brush
textures for the strokes result in different appearances of the
scenario.
The still life without paper
texture and shading color.