Computer-Generated Watercolor

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This section is dedicated to describing the basic model for the phisical and optical behavior of watercolors.

A complete painting is represented as an ordered set of washes on a sheet of rough paper. Each wash may contain various pigments in varying quantities over different parts of the images. These are stored as glazes. Each glaze is created independently by running a fluid simulation that computes the flow of water across the paper. The fluid simulation makes us of wet-area masks. The wet-area masks represent the areas of paper that been touched by water.