A Paper Model for Real-time Watercolor Simulation
Author(s): Tom Van Laerhoven, Jori Liesenborgs, Frank Van Reeth.
Technical Report: EDM/LUC, No. TR-LUC-EDM-0403, Diepenbeek, Belgium,
2003.
[BibTeX] 
Abstract:
Physically-based paint systems usually sacrifice their real-time property for
adequately complex behaviour, which means the input of a stroke and its actual
rendering occur in separate stages of the simulation process. Painting, however
is a process that intuitively should be interactive.
We present a physically-based paper model that is sufficiently soffisticated
to allow for complex paint behaviour, and which is able to generate watercolor
images in real-time by simulating the mechanics of pigment particles and water
throughout a three-layer paper canvas. The real-timeness is maintained by
distributing the paper canvas over a clustered processing units. The paper canvas
is divided into a grid of smaller sub-papers, each of which is processed on
a seperate processing unit. The results are collected and rendered at the user’s
computer.