We present algorithms that allow for real-time rendering of 3D-scenes with a watercolor painting appearance. Our approach provides an appropriate simplification of the visual complexity, imitates characteristic natural effects of watercolor, and provides two essential painting techniques: the wet-on-wet and the wet-on-dry painting. We concentrate on efficient algorithms based on image space processing rather than on an exact simulation. This allows for the real-time rendering of 3D-scenes. During an animation a high frame-to-frame coherence can be achieved due to a stable segmentation scheme. Finally, we seamlessly integrate a smooth illumination into the watercolor renderings using information from the 3D-scene.
@inproceedings{Luft2006RealtimeWatercolor,
acmid = {1124732},
address = {New York, NY, USA},
author = {T. Luft, O. Deussen},
booktitle = {Proceedings of the 4th International Symposium on Non-photorealistic Animation and Rendering},
doi = {10.1145/1124728.1124732},
file = {:img/Luft2006RealtimeWatercolor.png:PNG image;:pdf/Luft2006RealtimeWatercolor.pdf:PDF},
isbn = {1-59593-357-3},
keywords = {artistic rendering, blurred depth test, hidden surface removal, real-time rendering, soft shadows, watercolor},
location = {Annecy, France},
numpages = {10},
pages = {11--20},
publisher = {ACM},
series = {NPAR '06},
title = {Real-time Watercolor Illustrations of Plants Using a Blurred Depth Test},
url = {http://graphics.uni-konstanz.de/publikationen/2006/real_time_watercolor_animation/website/},
year = {2006}
}