Abstract

This paper presents a simple model for modeling and rendering of flames. The technique is based on physical model of flame processes. This flame model accounts for both laminar and turbulent flames, with premixed and diffusion combustion. The basic geometry of flames relies on the laminar flame model. An anisotropic density field function is used to define the geometry of laminar flames. A stochastic function is added to purturb the basic geometry of flames to simulate the turbulent flames. Luminous flames from carbon particle scattering is added to the model by approximating the Mie scattering function. The color of flames is determined by the combustible fuel and it is also dependent on the flame region inside the flames. A volume rendering technique based on ray tracing is used to render the flames, which we call the volume tracing.

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