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 Paint program renders ink physics

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Date posted: 01/07/2005

Researchers from the Hong Kong University of Science and Technology have developed a brush-and-ink-style paint program, dubbed Moxi,which recreates the physics of painting in the physical world exactly.

Using a particle model with pigment particles in water flowing into paper, the software models the gritty details of paper absorbing water and pigment moving through water, including the way pigment concentrates at ink boundaries as water evaporates from drying ink.

The model is efficient enough to deliver ink dispersion simulations in real-time, allowing for its use in virtual environments.

The simulation is based on mathematics -- the lattice Boltzmann equation -- that physicists use to model the complex behaviours of fluids.

The researchers will present their work at the annual SIGGRAPH conference later this year.

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