OpenGL(R) Programming Guide: The Official Guide to Learning OpenGL(R), Version 2 (5th Edition) (OpenGL)
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Graphic artists have a wide variety of applications to use for digital painting. Although each application has its own solution to enhance the user experience, most of them rely on the same standard feature; a single brush, which is completely dependent on user input for location. Although this is required for a fully controlled painting process, making small changes on this feature yields unpredictable results. My proposal for an alternate brush paradigm is using multiple brushes (as seen in the application "PD Particles"), which are not completely under control but rather moving within trajectories with random deviations, simultaneously. The trajectories are defined by controllable parameters and the user input. Since the rate of obedience to user input is dependant on the parameters, users can define the rate of deviation and thus switch between finger painting and generative painting, without changing the set of tools.